d link managed switches interoperating with cisco switches (1)

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Interoperating with Cisco Switches

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Version: 1.00

Published: Mar 19, 2010

D-Link HQ

Scope

This guide is a one-stop resource to help users set up their network quickly and optimize the features of

D-Link and vendors equipment smoothly. This guide focuses on the configuration of D-Link and Cisco

switches and includes topology examples for setting up a multi-vendor environment.

Use this document to learn, use and configure the different features of D-Link and Cisco management

switches.

Audience

This document is written for system administrators, network managers and IT personnel who are

responsible for the deployment of management switches.

About This Guide

This guide is structured into four parts as follows:

Title Description

Terminology Detailed descriptions of functions that are used to explain similar concepts on both D-

Link & Cisco platforms.Topology Topology examples to show the interoperability of D-Link and Cisco switches.

Configuration Step-by-step instructions on how to configure and set up the devices.

Troubleshooting Tips Command examples on how to quickly troubleshoot and configure if interoperation

fails.

For more Information

This guide is applicable to all D-Link Managed Switches (DES-3000 series and above). Please refer to D-Link

Managed Switch User Manual or CLI Manual for more detailed explanations or parameter descriptions.


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Table of Contents

VLAN CONFIGURATION 3

Terminology 3Topology 3Configuration 4

Link Aggregation 11

Terminology 11Compatibility between D-Link Port-Trunking and Cisco Port-Channel 11Topology 12Configuration 12Troubleshooting Examples 13

Spanning Tree Configuration 20

Terminology 20Topology 20Configuration 20Troubleshooting Examples 21

Multiple Spanning Tree Configuration 25

Terminology 25

Compatibility between MSTOP and PVST 25Topology 25Configuration 26Troubleshooting Examples 27

Open Shortest Path Fast OSPF) Configuration 33

Terminology 33Topology Single OSPF Area 33Configuration 33Troubleshooting Examples 36Topology Single OSPF Area 41Configuration 41Troubleshooting Examples 44


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VLAN CONFIGURATION

This chapter introduces port-based VLANs that D-Link and Cisco switches support.

Terminology

Cisco D-Link Description

Trunking Port Tagged Port This port carries multiple 802.1Q tagged VLANs that are usually used for uplinkand IP phone ports

Access Port Untagged Port A port which is an untagged member of a VLAN.

Native VLAN Untagged

Membership of

Physical Ports

In Cisco LAN switch environments the native VLAN is typically untagged on

VLAN trunk ports. Native VLAN is not associated to any tag on an 802.1Q link

and is used for all the untagged traffic received on an 802.1Q port.

By default, all VLAN membership of D-Link switches and access VLAN in Cisco

switches is VLAN 1.

Topology

Figure-1 Port-based VLAN Configuration

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Configuration

VLAN Configuration on a Cisco Switch

The following section lists step-by-step instructions for configuring VLAN and IP on D-Link and Cisco

management switches.

Command Example Purpose

Step 1

Cat al yst# conf i g ter mi nal

Cat al yst( conf i g) # vl an 10, 20, 30

Cat al yst ( conf i g- vl an) # exi t

To create VLAN

interfaces for ports 10,

20 and 30.

Step 2

Cat al yst ( conf i g) # i nt er f ace range gi gabi t Et her net 1/ 0/ 1- 6

Cat al yst( conf i g- i f ) # swi t chpor t mode access

Cat al yst ( conf i g- i f ) # swi t chpor t access vl an 10

Cat al yst( conf i g- i f ) # exi t

Cat al yst( conf i g) # i nt er f ace r ange gi gabi t Et her net 1/ 0/ 7- 12




Cat al yst( conf i g) # i nt er f ace r ange gi gabi t Et her net 1/ 0/ 13- 18




To change ports to

access mode and

assign membership for

each VLAN.

Step 3

Cat al yst ( conf i g) # i nt er f ace gi gabi t Et her net 1/ 0/ 21

Cat al yst ( conf i g- i f ) # swi t chpor t t r unk encapsul at i on dot 1q

Cat al yst ( conf i g- i f ) # swi t chpor t t r unk al l owed vl an

1, 10, 20, 30

Cat al yst( conf i g- i f ) # swi t chpor t mode t r unkCat al yst( conf i g- i f ) # exi t

To create a VLAN

trunking port.

Note:By default a Cisco VLAN trunk sends to and receives traffic from all VLANs. To restrict the traffic a VLAN

trunk carries, remove VLAN-list parameter to remove specific VLANs from the allowed list.

Note:By default, all ports of a Cisco switch belong to VLAN 1, access mode.

IP Configuration on a Cisco Switch

The following configuration example is for L3 switches. For layer 3 switches, an IP address has to be defined

for each VLAN and for a layer 2 switch, an IP address can only be configured on one VLAN for management

purposes.


Step 1

Cat al yst ( conf i g) # i nt er f ace vl an 1

Cat al yst ( conf i g- vl an) # i p addr ess 192. 168. 0. 1 255. 255. 255. 0

Cat al yst ( conf i g- vl an) # no shut down

To configure the IP

addresses for the

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VLAN interfaces.

VLAN Configuration on a D-Link Switch

In this example, ports 1 to 18 are removed from VLAN 1 (default VLAN) and are assigned to three different

VLANs. Here are the details:

- Ports 1 to 6 are assigned to VLAN 10.



- Port 21 (uplink) is tagged with VLAN 10, 20, 30 and belongs to an untagged member of VLAN 1.


Step 1

swi t ch# cr eat e vl an 10 t ag 10



swi t ch# conf i g vl an def aul t del et e 1- 18

swi t ch# conf i g vl an 10 add untagged 1- 6



swi t ch# conf i g vl an 10 add t agged 21



To create VLAN


20, 30 and assign port

membership.

IP Configuration on a D-Link Switch

The following configuration example is for L3 switches.

Layer 3 switches require an IP address for each VLAN; Layer 2 switches only require a system IP address.


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Step 1

swi t ch# conf i g i pi f System i paddr ess 192. 168. 0. 2/ 24

swi t ch# cr eat e i pi f 10 192. 168. 10. 2/ 24 10



To configure the IP

addresses for the

VLAN interfaces.

Troubleshooting Examples

The following section lists command examples for verifying VLANs and port assignments on D-Link and

Cisco switches.

Verifying VLANs and Ports Assignments on a Cisco Switch

The following example shows you how to verify the member ports and all the VLAN interfaces.

Command Example

Catal yst # show vlan

VLAN Name St at us Por t s- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

1 def aul t act i ve Gi1/0/19, Gi1/0/20, Gi1/0/21, Gi1/0/22, Gi1/0/23,

Gi1/0/24

10 VLAN0010 act i ve Gi1/0/1, Gi1/0/2, Gi1/0/3, Gi1/0/4, Gi1/0/5,

Gi1/0/6


Gi1/0/12


Gi1/0/18

The following example shows you how to set a trunking port.

Command Example

Catal yst # show interfaces gigabitEthernet 1/0/21 switchport

Name: Gi 1/ 0/ 19

Swi t chpor t : Enabl ed

Admi ni st r at i ve Mode: trunk

Operat i onal Mode: t r unk

Admi ni st r at i ve Trunki ng Encapsul at i on: dot1q

Oper at i onal Trunki ng Encapsul at i on: dot1q

Negot i at i on of Trunki ng: On

Access Mode VLAN: 1 ( def aul t )

Tr unki ng Nat i ve Mode VLAN: 1 ( def aul t )

Admi ni st r at i ve Nat i ve VLAN t aggi ng: enabl edVoi ce VLAN: none

Admi ni st r at i ve pr i vat e- vl an host - associ at i on: none

Admi ni st r at i ve pr i vat e- vl an mappi ng: none

Admi ni st r at i ve pr i vat e- vl an t r unk nat i ve VLAN: none

Admi ni st r at i ve pr i vat e- vl an t r unk Nat i ve VLAN t aggi ng: enabled


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Admi ni st r at i ve pr i vat e- vl an t r unk encapsul at i on: dot 1q

Admi ni st r at i ve pr i vat e- vl an t r unk normal VLANs: none

Admi ni st r at i ve pr i vat e- vl an t r unk associ at i ons: none

Admi ni st r at i ve pr i vat e- vl an t r unk mappi ngs: none

Oper at i onal pr i vat e- vl an: none

Tr unki ng VLANs Enabl ed: 1,10,20,30

Pr uni ng VLANs Enabl ed: 2- 1001

Capt ure Mode Di sabl ed

Capt ure VLANs Al l owed: ALL

Pr ot ected: f al se

Unknown uni cast bl ocked: di sabl ed

Unknown mul t i cast bl ocked: di sabl ed

Appl i ance tr ust : none

The following example shows you how to set the access ports.

Command Example

Catal yst # show interfaces gigabitEthernet 1/0/1 switchport

Name: Gi 1/ 0/ 1

Swi t chport : Enabl ed

Admi ni st r at i ve Mode: static access

Oper at i onal Mode: down

Admi ni st r at i ve Tr unki ng Encapsul at i on: negoti at e

Negot i at i on of Tr unki ng: Of f

Access Mode VLAN: 10 ( VLAN0010)

Tr unki ng Nat i ve Mode VLAN: 1 ( def aul t )

Admi ni st r at i ve Nat i ve VLAN t aggi ng: enabl ed

Voi ce VLAN: none

Admi ni st r at i ve pr i vat e- vl an host - associ at i on: noneAdmi ni st r at i ve pr i vat e- vl an mappi ng: none

Admi ni st r at i ve pr i vat e- vl an t r unk nat i ve VLAN: none

Admi ni st r at i ve pr i vat e- vl an t r unk Nat i ve VLAN t aggi ng: enabl ed

Admi ni st r at i ve pr i vat e- vl an t r unk encapsul at i on: dot 1q

Admi ni st r at i ve pr i vat e- vl an t r unk normal VLANs: none

Admi ni st r at i ve pr i vat e- vl an t r unk associ at i ons: none

Admi ni st r at i ve pr i vat e- vl an t r unk mappi ngs: none

Oper at i onal pr i vat e- vl an: none

Tr unki ng VLANs Enabl ed: ALL

Pruni ng VLANs Enabl ed: 2- 1001

Capt ure Mode Di sabl ed

Capt ure VLANs Al l owed: ALL

Pr ot ected: f al se

Unknown uni cast bl ocked: di sabl ed

Unknown mul t i cast bl ocked: di sabl ed

Appl i ance t r ust : none


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The following example shows you how to verify the IP address of each VLAN interface.

Command Example

Catal yst # show ip interface brief

I nt erf ace I P- Addr ess OK? Met hod St at us Prot ocol

Vl an1 192.168.0.1 YES manual up upVl an10 192.168.10.1 YES manual up up

Vl an20 192.168.20.1 YES manual up up

Vl an30 192.168.30.1 YES manual up up

Verifying VLANs and Port Assignments on D-Link Switches

The following example shows you how to verify all the VLAN interfaces and member ports.

Command Example

swi t ch# show vlanCommand: show vl an

VI D : 1 VLAN Name : def aul t

VLAN Type : St at i c Adver t i sement : Enabl ed

Member Por t s : 19-24

St at i c Por t s : 19- 24

Cur r ent Tagged Por t s :

Cur r ent Unt agged Por t s : 19- 24

St at i c Tagged Por t s :

St at i c Unt agged Port s : 19-24

For bi dden Por t s :

St at us : Act i ve

VI D : 10 VLAN Name : 10

VLAN Type : St at i c Adver t i sement : Di sabl ed

Member Por t s : 1-6,21

St at i c Por t s : 1- 6, 21

Cur r ent Tagged Por t s : 21

Cur r ent Unt agged Por t s : 1-6

St at i c Tagged Por t s : 21

St at i c Unt agged Port s : 1- 6


St at us : Act i ve

VI D : 20 VLAN Name : 20

VLAN Type : St at i c Adver t i sement :

Di sabl ed


St at i c Por t s : 7- 12, 21


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St at i c Unt agged Por t s : 7- 12


St at us : Act i ve

VI D : 30 VLAN Name: 30

VLAN Type : St at i c Adver t i sement : Di sabl ed


St at i c Por t s : 13- 18, 21




St at i c Unt agged Por t s : 13- 18


St at us : Act i ve

Tot al Entr i es: 4

The following example shows you how to verify the IP address of each VLAN interface.

Command Example

swi t ch# show ipif

Command: show i pi f

I P I nt er f ace : 10

VLAN Name : 10

I nt er f ace Admi n st at e : Enabl ed

DHCPv6 Cl i ent State : Di sabl edI Pv4 Addr ess : 192.168.10.2/24 ( Manual ) Pr i mary

Proxy ARP : Di sabl ed ( Local : Di sabl ed)

I P Di r ect ed Br oadcast : Di sabl ed

I P MTU : 1500


VLAN Name : 20


DHCPv6 Cl i ent State : Di sabl ed

I Pv4 Addr ess : 192.168.20.2/24 ( Manual ) Pr i mary


I P Di r ect ed Br oadcast : Di sabl edI P MTU : 1500


VLAN Name : 30



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I P MTU : 1500

I P I nt er f ace : Syst em

VLAN Name : def aul t






I P MTU : 1500

Tot al Ent r i es: 4


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Link Aggregation

This chapter introduces Link Aggregation Control Protocol (LACP) function that both D-Link and Cisco

switches support.

Terminology


Channel-group ID Group ID ID of a port aggregation group.

Port-channel Link Aggregation Group A logical port aggregation group.

Link Aggregation Group

Cisco defines the Aggregation group as Port-channel and is configured as the Interface Port-channel x.

The default Port-channel mode is static trunk, and the LACP mode for a dynamic trunk. On the other hand,

D-Link calls it Link Aggregation Groupand is configured as type static for a static trunk or type LACP for a

dynamic trunk.

Static and Dynamic Trunks/Channels

In between two switches, a Static Trunkbecomes an active trunk unconditionally and independently of the

other switchs configuration. A static trunk does not require any protocols.

ADynamic Trunkis active only when it is enabled in both D-Link and Cisco switches. To do so, the switches

exchange messages, either through Port Aggregation Protocol (PAgP) or Link Aggregation Control Protocol

(LACP), to negotiate their status. If either of the switches is active (LACP) or desirable (PAgP), then the

switch initiates negotiation. If the switch is passive (LACP) or auto (PAgP) then it forms a link aggregation

automatically.

LACP

LACP is the Link Aggregation Control Protocol defined by the IEEE 802.3ad standard. It provides a way for

both switches to negotiate a port aggregation. With LACP, one or more additional links can operate as

standby links that will activate only if an active link goes down.

When connecting two switches with LACP, one of the switches must be in active role to send LACP frames

and the other should be set passive.

Compatibility between D-Link Port-Trunking and Cisco Port-Channel

The following table summarizes the options that can be combined to create a trunk on both D-Link and

Cisco switches.

Cisco

D-Link

Mode On

Mode

Passive

Mode Active


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Static

LACP-Passive

LACP- Active

Note:All ports in a trunk group must be configured at the same speed and VLAN.

Topology

Figure-2 Link Aggregation and VLAN Configuration

Configuration

Static Trunk Configuration on a Cisco Switch


Step 1

Cat al yst# conf i g t er mi nal

Cat al yst ( conf i g) # i nt er f ace r ange gi gabi t Et her net 1/ 0/ 19- 22

Cat al yst ( conf i g- i f ) # channel - gr oup 1 mode on

To create a channel

group 1 with static

mode.

Static Trunk Configuration on a D-Link Switch


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Step 1

swi t ch# cr eat e l i nk_aggr egat i on gr oup_i d 1 t ype st at i c

swi t ch# conf i g l i nk_aggr egat i on gr oup_i d 1 port s 19- 22 st at e

enabl e

To create a trunk

group 1 with static

mode.


Verifying the Static Channel Status on a Cisco Switch

The following example shows you how to correctly set the port mode and verify the channel group ports.

Command Example

Catal yst # show etherchannel 1 summary

Fl ags: D - down P - bundl ed i n port - channel

I - st and- al one s - suspended

H - Hot - st andby ( LACP onl y)

R - Layer3 S - Layer2

U - i n use f - f ai l ed t o al l ocat e aggr egat or

M - not i n use, mi ni mum l i nks not met

u - unsui t abl e f or bundl i ng

w - wai t i ng t o be aggregated

d - def aul t por t

Number of channel - groups i n use: 1

Number of aggregator s: 1

Gr oup Por t - channel Pr otocol Por t s

- - - - - - +- - - - - - - - - - - - - +- - - - - - - - - - - +- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

1 Po1(SU) - Gi1/0/19(P) Gi1/0/20(P) Gi1/0/21(P)

Gi1/0/22(P)

Catal yst #show etherchannel 1 detai l

Gr oup st at e = L2

Por t s: 4 Maxpor t s = 8

Por t - channel s: 1 Max Por t - channel s = 1

Protocol : -

Mi ni mum Li nks: 0

Por t s i n the gr oup:

- - - - - - - - - - - - - - - - - - -

Por t : Gi 1/ 0/ 19

- - - - - - - - - - - -

Por t st at e = Up Mst r I n- Bndl

Channel gr oup = 1 Mode = On Gcchange = -

Por t - channel = Po1 GC = - Pseudo por t - channel = Po1

Por t i ndex = 0 Load = 0x00 Pr ot ocol = -

Age of t he por t i n the cur r ent st ate: 0d: 00h: 04m: 13s


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Por t : Gi 1/ 0/ 20

- - - - - - - - - - - -






Por t : Gi 1/ 0/ 21

- - - - - - - - - - - -






Por t : Gi 1/ 0/ 22

- - - - - - - - - - - -






Por t - channel s i n t he gr oup:- - - - - - - - - - - - - - - - - - - - - - - - - - -

Por t - channel : Po1

- - - - - - - - - - - -

Age of t he Por t - channel = 0d: 00h: 04m: 17s

Logi cal sl ot / por t = 10/ 1 Number of por t s = 4

GC = 0x00000000 Hot St andBy por t = nul l

Por t st at e = Por t - channel Ag- I nuse

Pr ot ocol = -

Por t secur i t y = Di sabl ed

Por t s i n t he Por t - channel :

I ndex Load Por t EC st at e No of bi t s

- - - - - - +- - - - - - +- - - - - - +- - - - - - - - - - - - - - - - - - +- - - - - - - - - - -

0 00 Gi 1/ 0/ 19 On 0


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0 00 Gi 1/ 0/ 20 On 0

0 00 Gi 1/ 0/ 21 On 0

0 00 Gi 1/ 0/ 22 On 0

Ti me si nce l ast por t bundl ed: 0d: 00h: 04m: 14s Gi 1/ 0/ 22

Verifying the Static Trunk Status on a D-Link Switch


Command Example

swi t ch# show link_aggregation

Command: show l i nk_aggr egat i on

Li nk Aggr egat i on Al gor i t hm = I P- Sour ce

Gr oup I D : 1

Type : TRUNK

Mast er Por t : 19

Member Por t : 19- 22

Act i ve Por t : 19- 22

St at us : Enabl ed

Fl oodi ng Por t : 19

LACP Configuration on a Cisco Switch

The following example shows you how to create a channel group, when a switch plays an active role in a

LACP trunk.


Step 1



Catal yst ( conf i g- i f ) # channel - gr oup 1 mode act i ve

To create a channel

group 1 with LACP-

active mode.


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The following example shows you how to create a channel group, when a switch plays a passive role in a

LACP trunk.


Step 1



Catal yst ( conf i g- i f ) # channel - gr oup 1 mode passi ve

To create a channel

group 1 with LACP-

passive mode.

LACP Configuration on a D-Link Switch

The following example shows you how to create a trunk group, when a switch plays an active role in a LACP

trunk.


Step 1

swi t ch# cr eat e l i nk_aggr egat i on gr oup_i d 1 t ype l acp

swi t ch# conf i g l i nk_aggr egat i on gr oup_i d 1 master _por t 19

por t s 19- 22 stat e enabl e

swi t ch# conf i g l acp_port 19- 22 mode act i ve

To create a trunk

group 1 with LACP-

active mode.

The following example shows you how to create a trunk group, when a switch plays a passive role in a LACP

trunk.


Step 1

swi t ch# cr eat e l i nk_aggr egat i on gr oup_i d 1 t ype l acp

swi t ch# conf i g l i nk_aggr egat i on gr oup_i d 1 mast er_ por t 19

port s 19- 22 st at e enabl e

swi t ch# conf i g l acp_por t 19- 22 mode passi ve

To create a trunk

group 1 with LACP-

passive mode.

Note:By default, the LACP port mode is set passive in D-Link switches.

Verifying the LACP Configuration on a Cisco Switch


Command Example

Catal yst # show interfaces etherchannel

- - - -

Gi gabi t Et her net 1/ 0/ 19:Por t st at e = Up Sngl - por t - Bndl Mst r Not - i n- Bndl

Channel gr oup = 1 Mode =Active Gcchange = -

Por t - channel = nul l GC = - Pseudo por t - channel = Po1

Por t i ndex = 0 Load = 0x00 Pr ot ocol = LACP

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Fl ags: S - Devi ce i s sendi ng Sl ow LACPDUs F - Devi ce i s sendi ng f ast LACPDUs.

A - Devi ce i s i n act i ve mode. P - Devi ce i s i n passi ve mode.

Local i nf or mat i on:

LACP por t Admi n Oper Port Por t

Por t Fl ags St at e Pri or i t y Key Key Number St at e

Gi 1/ 0/ 19 SA i ndep 32768 0x1 0x1 0x13 0x7D

Age of t he por t i n t he cur r ent st at e: 0d: 00h: 00m: 51s

- - - -

Gi gabi t Et her net 1/ 0/ 20:

Por t st at e = Up Sngl - por t - Bndl Mst r Not - i n- Bndl









Gi 1/ 0/ 20 SA i ndep 32768 0x1 0x1 0x14 0x7D


- - - -




Por t - channel = nul l GC = - Pseudo por t - channel = Po1Por t i ndex = 0 Load = 0x00 Pr ot ocol = LACP






Gi 1/ 0/ 21 SA i ndep 32768 0x1 0x1 0x15 0x7D


- - - -






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Gi 1/ 0/ 22 SA i ndep 32768 0x1 0x1 0x16 0x7D


- - - -

Por t - channel 1: Por t - channel 1 ( Pri mar y aggr egat or )

Age of t he Port - channel = 0d: 01h: 42m: 42s

Logi cal sl ot / por t = 10/ 1 Number of por t s = 0

HotStandBy por t = nul l

Por t st ate = Por t - channel Ag- Not - I nuse

Prot ocol = LACPPor t secur i t y = Di sabl ed

Ti me si nce l ast por t bundl ed: 0d: 01h: 42m: 38s Gi 1/ 0/ 22

Ti me si nce l ast por t Un- bundl ed: 0d: 00h: 01m: 19s Gi 1/ 0/ 22

Verifying the LACP Configuration on a D-Link Switch

The following example shows you how to correctly set the ports of a trunk group.

Command Example

swi t ch# show link_aggregation

Command: show l i nk_aggr egat i on

Li nk Aggr egat i on Al gor i t hm = I P- Sour ce

Gr oup I D : 1

Type : LACP

Mast er Por t : 19

Member Por t : 19- 22

Act i ve Port : 19- 22

St at us : Enabl ed

Fl oodi ng Por t : 21

Tot al Ent r i es : 1

The following example shows you how to correctly set the port mode.


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Command Example

swi t ch# show lacp

Command: show l acp_por t

Port Act i vi t y

- - - - - - - - - - - - -

1 Passi ve2 Passi ve

3 Passi ve

19 Passive

20 Passive

21 Passive

22 Passive

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Spanning Tree Configuration

Terminology


Port Fast Edge Port Bypassing the listening and learning stages, this port changes its state from blocking

to forwarding directly to speed up Spanning tree protocol(STP) convergence.

Note:Since STP/Rapid STP (RSTP) function can only run in a single VLAN, all connections on Per-VLAN Spanning

Tree (PVST) should be located in the same VLAN.

Topology

Figure-3

Spanning Tree Configuration

Configuration

Rapid-PVST Configuration on a Cisco Switch


Step 1


Cat al yst ( conf i g) # spanni ng- t r ee mode r api d- pvst

To enable STP and

choose rapid-PVST

mode.

Step 2

Cat al yst( conf i g) # spanni ng- t r ee vl an 1 pr i ori t y 4096 To change priority to4096.

RSTP Configuration on a D-Link Switch

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Step 1

swi t ch: admi n# enabl e st p

swi t ch: admi n# conf i g st p ver si on r st p

To enable and then

choose RSTP.

Step 2

swi t ch: admi n# conf i g st p por t s 1- 22 edge t r ue

swi t ch: admi n# conf i g st p por t s 23- 24 p2p t r ue

Assume ports 1-22 are

connected to PCs or

an end terminal

device. These ports

should be set as edge

ports. The ports 23-24

which are connected

to the switch should

be set as P2P ports.


Verifying RSTP Mode and Ports Status on a Cisco Switch

The following example shows you how to verify the STP protocol version, STP priority and port.

Command Example

Cat al yst # show span vl an 1

VLAN0001

Spanni ng t r ee enabl ed pr otocol r st p

Root I D Pr i or i t y 4097

Addr ess 0021. 56b0. 5c00

Thi s br i dge i s t he r oot

Hel l o Ti me 2 sec Max Age 20 sec For war d Del ay 15 sec

Br i dge I D Pr i or i t y 4097 ( pr i or i t y 4096 sys- i d- ext 1)

Addr ess 0021. 56b0. 5c00


Agi ng Ti me 300

I nt er f ace Rol e St s Cost Pr i o. Nbr Type

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Gi 1/ 0/ 23 Desg FWD 4 128. 23 P2p

Gi 1/ 0/ 24 Desg FWD 4 128. 24 P2p

The following example shows you how to check STP detail information.

Command Example

Catal yst # show spanning-tree detail


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22

VLAN0001 i s execut i ng the r st p compat i bl e Spanni ng Tr ee pr ot ocol

Br i dge I dent i f i er has pr i or i t y 4096, sysi d 1, addr ess 0021. 56b0. 5c00

Conf i gur ed hel l o t i me 2, max age 20, f orward del ay 15, t r ansmi t hol d- count 6

We ar e the root of t he spanni ng t r ee

Topol ogy change f l ag not set , detect ed f l ag not set

Number of t opol ogy changes 4 l ast change occurr ed 00: 25: 48 ago

f r om Gi gabi t Et her net 1/ 0/ 23

Ti mes: hol d 1, t opol ogy change 35, not i f i cat i on 2

hel l o 2, max age 20, f orward del ay 15

Ti mer s: hel l o 0, t opol ogy change 0, not i f i cat i on 0, agi ng 300

Por t 23 (Gi gabi t Et her net 1/ 0/ 23) of VLAN0001 i s desi gnat ed f orwar di ng

Por t pat h cost 4, Por t pr i or i t y 128, Por t I dent i f i er 128. 23.

Desi gnated r oot has pr i or i t y 4097, addr ess 0021. 56b0. 5c00

Desi gnated br i dge has pr i or i t y 4097, addr ess 0021. 56b0. 5c00

Desi gnat ed port i d i s 128. 23, desi gnat ed pat h cost 0

Ti mer s: message age 0, f or war d del ay 0, hol d 0

Number of t r ansi t i ons t o f or war di ng st at e: 2

Li nk type i s poi nt - t o- poi nt by def aul t

BPDU: sent 839, r ecei ved 22



Desi gnated r oot has pr i or i t y 4097, addr ess 0021. 56b0. 5c00

Desi gnated br i dge has pr i or i t y 4097, addr ess 0021. 56b0. 5c00







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23

Verifying the RSTP Mode and Ports Status on a D-Link Switch

The following example shows you how to verify if the spanning mode is RSTP and STP is enabled.

Command Example

swi t ch: admi n# show st p

Command: show st p

STP Br i dge Gl obal Set t i ngs

- - - - - - - - - - - - - - - - - - - - - - - - - - -

STP St atus : Enabl ed

STP Versi on : RSTP

Max Age : 20

Hel l o Ti me : 2

Forward Del ay : 15

Max Hops : 2

TX Hol d Count : 6

Forwardi ng BPDU : Di sabl ed

Loopback Detect i on : Enabl ed

LBD Recover Ti me : 60NNI BPDU Addr ess : dot 1ad

The following example shows you how to verify the Root Bridge.

Command Example

swi t ch: admi n# show st p i nst ance 0

Command: show st p i nst ance 0

STP I nst ance Set t i ngs

- - - - - - - - - - - - - - - - - - - - - - - - - - -I nst ance Type : CI ST

I nst ance St at us : Enabl ed

I nst ance Pr i or i t y : 32768( Br i dge Pr i or i t y : 32768, SYS I D Ext : 0 )

STP I nst ance Operat i onal St at us

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Designated Root Bridge : 4097 /00-21-56-B0-5C-00

Ext ernal Root Cost : 20000

Regional Root Bridge : 32768/00-19-5B-12-43-00

I nt er nal Root Cost : 0

Desi gnat ed Br i dge : 4097 / 00- 21- 56- B0- 5C- 00

Root Por t : 23

Max Age : 20

Forward Del ay : 15

Last Topol ogy Change : 978

Topol ogy Changes Count : 5


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24

The following example shows you how to verify the role of the interface.

Command Example

swi t ch: admi n# show st p por t s 23

Command: show st p por t s 23

MSTP Por t I nf ormat i on

- - - - - - - - - - - - - - - - - - - - - -

Por t I ndex : 23 , Hel l o Ti me: 2 / 2 , Por t STP : Enabl ed , LBD : No

Ext er nal Pat hCost : Aut o/ 20000 , Edge Por t : Fal se/ No , P2P : True /Yes

Por t Rest r i ct edRol e : Fal se, Por t Rest r i ct edTCN : Fal se

Por t Forward BPDU : Di sabl ed

MSTI Desi gnat ed Br i dge I nt er nal Pat hCost Pr i o Status Role

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

0 1001/ 002156B05C00 20000 128 Forwarding Root


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Multiple Spanning Tree Configuration

Terminology

None

Compatibility between MSTOP and PVST

The following table summarizes the compatibility of PVST and MSTP functions.

Cisco

D-Link

PVST PVST+ Rapid PVST+

MSTP

No Yes (See note)Yes (reverts to

PVST+)

Note:In a MSTP and PVST+ network, the Common Spanning-Tree (CST) root must be

inside the MST backbone, and a PVST+ switch cannot connect to multiple MST regions.

Topology

Figure-4 Multiple Spanning Tree Configuration

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26

Configuration

Multiple Spanning Configuration on a Cisco Switch


Step 1

Cat al yst# conf i g ter mi nalCat al yst( conf i g) # vl an 10, 20, 30

To create VLANinterface for ports 10

and 20.

Step 2

Cat al yst( conf i g) # i nt er f ace r ange gi gabi t Et her net

1/ 0/ 1- 8

Cat al yst( conf i g- i f - r ange) # swi t chpor t access vl an 10

Cat al yst ( conf i g- i f - r ange) # i nt er f ace r ange

gi gabi t Et her net 1/ 0/ 9- 16

Cat al yst( conf i g- i f - r ange) # swi t chpor t access vl an 20

To assign interfaces for

0/1/0-8 to VLAN 10 and

0/1/9-16 to VLAN 20.

Step 3

Cat al yst( conf i g) # i nt er f ace r ange gi gabi t Et her net

1/ 0/ 23- 24

Cat al yst( conf i g- i f - r ange) # swi t chpor t mode t r unkCat al yst ( conf i g- i f - r ange) # swi t chpor t t r unk al l owed

vl an 1, 10, 20

Cat al yst ( conf i g- i f - r ange) # swi t chpor t t r unk

encapsul at i on dot 1q

To set interfaces for

0/1/23-24 as the trunk

interfaces.

Step 4

Cat al yst( conf i g) # i nt er f ace vl an 10

Cat al yst ( conf i g- i f ) # i p addr ess 192. 168. 10. 1

255. 255. 255. 0

Cat al yst( conf i g) # i nt er f ace vl an 20


255. 255. 255. 0

To create two IP

interfaces on VLAN 10

and 20.

Step 5

Catal yst ( conf i g) # spanni ng- t r ee mode mstCat al yst( conf i g) # spanni ng- t r ee mst conf i gur at i on

Cat al yst ( conf i g- mst ) # name t est

Cat al yst ( conf i g- mst ) # r evi si on 1

Cat al yst ( conf i g- mst ) # i nst ance 1 vl an 10

Cat al yst ( conf i g- mst ) # i nst ance 2 vl an 20

To set up Multiple

Spanning Tree

name/revision/instance

and VLAN mapping as

the same value on all

switches.

Step 6

Cat al yst( conf i g) # spanni ng- t r ee mst 1 pr i ori t y 4096



To set Cisco switch as

the root switch.

Multiple Spanning Configuration on a D-Link Switch


Step 1

swi t ch: admi n# cr eat e vl an 10 t ag 10


swi t ch: admi n# conf i g vl an def aul t del et e 1- 16

To create VLAN


20 and port


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27

swi t ch: admi n# conf i g vl an 10 add untagged 1- 8

swi t ch: admi n# conf i g vl an 10 add t agged 23- 24


swi t ch: admi n# conf i g vl an 20 add t agged 23- 24

assignment.

Step 2

swi t ch: admi n# cr eat e i pi f 10 192. 168. 10. 2/ 24 10


To create two IP


and 20.

Step 3

swi t ch: admi n# conf i g st p mst _conf i g_i d name t estswi t ch: admi n# conf i g st p mst _conf i g_i d

r evi si on_l evel 1

swi t ch: admi n# conf i g st p ver si on mst p

swi t ch: admi n# cr eat e st p i nst ance_i d 1

swi t ch: admi n# cr eat e st p i nst ance_i d 2

swi t ch: admi n# conf i g st p i nst ance_i d 1 add_vl an 10

swi t ch: admi n# conf i g st p i nst ance_i d 2 add_vl an 20

swi t ch: admi n# enabl e st p

To set up Multiple

Spanning Tree

name/revision/instance

and VLAN mapping as

the same value on all

switches.


Verifying MSTP Mode and Ports Status on a Cisco Switch

The following example shows you how to verify an MSTP instance and VLAN mapping information.

Command Example

Catal yst ( conf i g- mst ) # show pendi ng

Pendi ng MST conf i gur at i on

Name [ t est ]

Revi si on 1 I nst ances conf i gur ed 3

I nst ance Vl ans mapped- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

0 1- 9, 11- 19, 21- 4094

1 10

2 20

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Catal yst # show spanni ng- t r ee mst conf i gur at i on

Name [ t est ]

Revi si on 1 I nst ances conf i gur ed 3

I nst ance Vl ans mapped- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

0 1- 9, 11- 19, 21- 4094

1 10

2 20

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


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28

The following example shows you how to check STP information.

Command Example

Catal yst # show spanning-tree detail

VLAN0001 i s execut i ng the r st p compat i bl e Spanni ng Tr ee pr otocolBr i dge I dent i f i er has pr i ori t y 4096, sysi d 1, addr ess 0021. 56b0. 5c00

Conf i gured hel l o t i me 2, max age 20, f orward del ay 15, t r ansmi t hol d- count 6

We ar e the root of t he spanni ng t r ee

Topol ogy change f l ag not set , detect ed f l ag not set

Number of t opol ogy changes 4 l ast change occurr ed 00: 25: 48 ago

f r om Gi gabi t Et her net 1/ 0/ 23

Ti mes: hol d 1, t opol ogy change 35, not i f i cat i on 2

hel l o 2, max age 20, f or ward del ay 15

Ti mer s: hel l o 0, t opol ogy change 0, not i f i cat i on 0, agi ng 300


Por t pat h cost 4, Por t pr i or i t y 128, Por t I dent i f i er 128. 23.Desi gnat ed r oot has pr i or i t y 4097, addr ess 0021. 56b0. 5c00

Desi gnat ed br i dge has pr i or i t y 4097, address 0021. 56b0. 5c00








Desi gnat ed r oot has pr i or i t y 4097, addr ess 0021. 56b0. 5c00

Desi gnat ed br i dge has pr i or i t y 4097, address 0021. 56b0. 5c00







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29

The following example shows you how to check the STP status.

Command Example

Catal yst # show spanning-tree

MST0

Spanni ng t r ee enabl ed pr ot ocol mst p

Root I D Pri or i t y 4096Addr ess 0021. 56b0. 5c00




Addr ess 0021. 56b0. 5c00



- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Gi 1/ 0/ 1 Desg FWD 200000 128. 1 P2p Edge

Gi 1/ 0/ 9 Desg FWD 200000 128. 9 P2p EdgeGi 1/ 0/ 23 Desg FWD 20000 128. 23 P2p

Gi 1/ 0/ 24 Desg FWD 20000 128. 24 P2p

MST1


Root I D Pri or i t y 4097

Addr ess 0021. 56b0. 5c00




Addr ess 0021. 56b0. 5c00



- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


Gi 1/ 0/ 23 Desg FWD 20000 128. 23 P2p

Gi 1/ 0/ 24 Desg FWD 20000 128. 24 P2p

MST2


Root I D Pri or i t y 4098Addr ess 0021. 56b0. 5c00




Addr ess 0021. 56b0. 5c00


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30



- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


Gi 1/ 0/ 23 Desg FWD 20000 128. 23 P2p

Gi 1/ 0/ 24 Desg FWD 20000 128. 24 P2p

The following example shows you how to check the MST protocol information.

Command Example

Catal yst # show spanning-tree mst

##### MST0 vl ans mapped: 1- 9, 11- 19, 21- 4094

Br i dge addr ess 0021. 56b0. 5c00 pr i or i t y 4096 ( 4096 sysi d 0)

Root t hi s swi t ch f or t he CI ST

Operat i onal hel l o t i me 2 , f orward del ay 15, max age 20, t xhol dcount 6

Conf i gur ed hel l o t i me 2 , f orward del ay 15, max age 20, max hops 20


- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



Gi 1/ 0/ 23 Desg FWD 20000 128. 23 P2p

Gi 1/ 0/ 24 Desg FWD 20000 128. 24 P2p

##### MST1 vl ans mapped: 10


Root t hi s swi t ch f or MST1


- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


Gi 1/ 0/ 23 Desg FWD 20000 128. 23 P2p

Gi 1/ 0/ 24 Desg FWD 20000 128. 24 P2p

##### MST2 vl ans mapped: 20


Root t hi s swi t ch f or MST2


- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Gi 1/ 0/ 9 Desg FWD 200000 128. 9 P2p Edge

Gi 1/ 0/ 23 Desg FWD 20000 128. 23 P2p

Gi 1/ 0/ 24 Desg FWD 20000 128. 24 P2p

Verifying the RSTP Mode and Ports Status on a D-Link Switch


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31

The following example shows you how to verify if the spanning mode is MSTP and STP is enabled.

Command Example

swi t ch: admi n# show st p

Command: show st p

STP Br i dge Gl obal Set t i ngs

- - - - - - - - - - - - - - - - - - - - - - - - - - -STP Status : Enabled

STP Version : MSTP

Max Age : 20

Forward Del ay : 15

Max Hops : 20

TX Hol d Count : 6

Forwardi ng BPDU : Di sabl ed

Loopback Detect i on : Enabl ed

LBD Recover Ti me : 60

NNI BPDU Addr ess : dot 1ad

The following example shows you how to check the spanning instance information.

Command Example

swi t ch: admi n# show st p i nst ance 0

Command: show st p i nst ance 0

STP I nst ance Set t i ngs

- - - - - - - - - - - - - - - - - - - - - - - - - - -

I nst ance Type : CI ST

I nst ance St at us : Enabl ed

I nst ance Pr i or i t y : 32768( Br i dge Pr i or i t y : 32768, SYS I D Ext : 0 )

STP I nst ance Operat i onal St at us

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Desi gnat ed Root Br i dge : 32768/ 00- 19- 5B- 12- 43- 00

Exter nal Root Cost : 0

Regi onal Root Br i dge : 32768/ 00- 19- 5B- 12- 43- 00

I nt er nal Root Cost : 0

Desi gnat ed Br i dge : 32768/ 00- 19- 5B- 12- 43- 00

Root Por t : None

Max Age : 20

Forward Del ay : 15

Last Topol ogy Change : 74717

Topol ogy Changes Count : 22


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32

The following example shows you how to check the STP instance and VLAN mapping.

Command Example

swi t ch: admi n# show st p mst _conf i g_i d

Command: show st p mst _conf i g_i d

Cur r ent MST Conf i gur at i on I dent i f i cat i on

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Conf i gur at i on Name : t est Revi si on Level : 1

MSTI I D Vi d l i st

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

CI ST 1- 9, 11- 19, 21- 4094

1 10

2 20


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Open Shortest Path Fast OSPF) Configuration

Terminology

None

Topology Single OSPF Area

Figure-5 Single OSPF Area Configuration

Configuration

OSPF Configuration on a Cisco Switch - 1


Step 1



Cat al yst ( conf i g- i f ) # no swi t chpor t


255. 255. 255. 0

Cat al yst ( conf i g- i f ) # no shut





255. 255. 255. 0Cat al yst ( conf i g- i f ) # no shut down


To create two IP

interfaces -

(192.168.20.0/

192.168.30.0)

Step 2

Cat al yst ( conf i g) # i p r out i ng

Cat al yst ( conf i g) # r out er ospf 100

To enable OSPF on

specific interfaces and

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33


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34

Cat al yst ( conf i g- r out er ) # r out er - i d 192. 168. 20. 1

Cat al yst ( conf i g- r out er ) # net wor k 192. 168. 20. 0 0. 0. 0. 255

area 0

Cat al yst ( conf i g- r out er ) # net wor k 192. 168. 30. 0 0. 0. 0. 255

area 0

set up router ID.

OSPF Configuration on a Cisco Switch - 2


Step 1





255. 255. 255. 0

Cat al yst ( conf i g- i f ) # no shut





255. 255. 255. 0

Cat al yst ( conf i g- i f ) # no shut down


To create two IP

interfaces (192.168.30.0 /

192.168.40.0).

Step 2

Cat al yst ( conf i g) # i p r out i ng

Cat al yst ( conf i g) # r out er ospf 100

Cat al yst ( conf i g- r out er ) # r out er - i d 192. 168. 30. 1

Cat al yst ( conf i g- r out er ) # net work 192. 168. 30. 0 0. 0. 0. 255

ar ea 0

Cat al yst ( conf i g- r out er ) # net work 192. 168. 40. 0 0. 0. 0. 255

ar ea 0

To enable OSPF on


set up router ID.


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35

OSPF Configuration on a D-Link Switch - 1


Step 1



swi t ch: admi n# conf i g vl an def aul t del et e 1- 16


swi t ch: admi n# conf i g vl an 20 add untagged 9- 16, 23

To create VLAN

interfaces for ports 10

and 20 and assign

relative ports to each

VLAN.

Step 2



To create two IP


and 20.

Step 3

conf i g ospf r out er _i d 192. 168. 10. 1

swi t ch: admi n# conf i g ospf i pi f 10 ar ea 0. 0. 0. 0 st at e

enabl e

swi t ch: admi n# conf i g ospf i pi f 20 ar ea 0. 0. 0. 0 st at eenabl e

swi t ch: admi n# enabl e ospf

To enable OSPF on


set up router ID.

OSPF Configuration on a D-Link Switch - 2


Step 1



swi t ch: admi n# conf i g vl an def aul t del ete 1- 16swi t ch: admi n# conf i g vl an 40 add untagged 1- 8, 24


To create VLAN

interfaces for ports 40

and 50 and assignrelative ports to each

VLAN.

Step 2



To create two IP


and 50.

Step 3

conf i g ospf r out er _i d 192. 168. 40. 1


enabl e


enabl e

swi t ch: admi n# enabl e ospf

To enable OSPF on


set up router ID.


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36


Verifying OSPF Information on a Cisco Switch

The following example shows you how to check OSPF information.

Command Example

Catal yst # show i p ospf

Rout i ng Process "ospf 100" with ID 192.168.20.1

St ar t t i me: 00: 01: 21. 528, Ti me el apsed: 00: 00: 52. 454

Suppor t s onl y si ngl e TOS(TOS0) r out es

Suppor t s opaque LSA

Suppor t s Li nk- l ocal Si gnal i ng ( LLS)

Suppor t s ar ea t r ansi t capabi l i t y

Rout er i s not or i gi nat i ng r out er - LSAs wi t h maxi mum met r i c

I ni t i al SPF schedul e del ay 5000 msecs

Mi ni mumhol d t i me bet ween t wo consecut i ve SPFs 10000 msecs

Maxi mum wai t t i me bet ween t wo consecut i ve SPFs 10000 msecs

I ncr ement al - SPF di sabl ed

Mi ni mum LSA i nt er val

*Mar 1 00: 02: 12. 623: %OSPF- 5- ADJ CHG: Pr ocess 100, Nbr 192. 168. 30. 1 on

Gi gabi t Et her net1/ 0/ 22 f r om LOADI NG t o FULL, Loadi ng Done5 secs

Mi ni mumLSA ar r i val 1000 msecs

LSA group paci ng t i mer 240 secs

I nt erf ace f l ood paci ng t i mer 33 msecs

Ret r ansmi ssi on paci ng t i mer 66 msecs

Number of exter nal LSA 0. Checksum Sum 0x000000

Number of opaque AS LSA 0. Checksum Sum 0x000000

Number of DCbi t l ess exter nal and opaque AS LSA 0

Number of DoNot Age ext er nal and opaque AS LSA 0Number of areas i n t hi s r out er i s 1. 1 normal 0 st ub 0 nssa

Number of ar eas t r ansi t capabl e i s 0

Ext er nal f l ood l i st l engt h 0

I ETF NSF hel per suppor t enabl ed

Ci sco NSF hel per suppor t enabl ed

Ref erence bandwi dth uni t i s 100 mbps

Area BACKBONE( 0)

Number of i nt er f aces i n t hi s ar ea i s 2

Ar ea has no aut hent i cat i on

SPF al gori t hm l ast execut ed 00: 00: 37. 984 ago

SPF al gori t hm execut ed 2 t i mes

Ar ea r anges ar eNumber of LSA 8. Checksum Sum 0x043353

Number of opaque l i nk LSA 0. Checksum Sum 0x000000

Number of DCbi t l ess LSA 4

Number of i ndi cat i on LSA 0

Number of DoNot Age LSA 0


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37

Fl ood l i st l engt h 0

The following example shows you how to verify if the OSPF neighbors are established.

Command Example

Catal yst # show i p ospf nei ghbor

Nei ghbor I D Pr i St ate Dead Ti me Address I nt er f ace

192.168.30.1 1 FULL/DR 00: 00: 38 192. 168. 30. 2 Gi gabi t Et hernet 1/ 0/ 22

192.168.10.1 1 FULL/DR 00: 00: 36 192. 168. 20. 1 Gi gabi t Et hernet 1/ 0/ 23

The following example shows you how to verify if the route entries are learnt by the switches.

Command Example

Catal yst # show i p rout e

Codes: C - connect ed, S - st at i c, R - RI P, M - mobi l e, B - BGP

D - EI GRP, EX - EI GRP ext er nal , O - OSPF, I A - OSPF i nt er areaN1 - OSPF NSSA ext er nal t ype 1, N2 - OSPF NSSA ext ernal t ype 2

E1 - OSPF ext ernal t ype 1, E2 - OSPF ext ernal t ype 2

i - I S- I S, su - I S- I S summar y, L1 - I S- I S l evel - 1, L2 - I S- I S l evel - 2

i a - I S- I S i nt er ar ea, * - candi dat e def aul t , U - per - user st at i c rout e

o - ODR, P - per i odi c downl oaded st at i c r out e

Gat eway of l ast r esor t i s not set

C 192. 168. 30. 0/ 24 i s di r ect l y connect ed, Gi gabi t Et her net 1/ 0/ 22

O 192.168.10.0/24 [ 110/ 2] vi a 192. 168. 20. 1, 00: 02: 07, Gi gabi t Et her net 1/ 0/ 23


C 192. 168. 20. 0/ 24 i s di r ect l y connect ed, Gi gabi t Et her net 1/ 0/ 23


The following example shows you how to check the OSPF interface status.

Command Example

Cat al yst # show i p ospf i nt er f ace

Gi gabi t Et her net 1/ 0/ 22 i s up, l i ne pr ot ocol i s up (connect ed)

I nt er net Addr ess 192. 168. 30. 1/ 24, Ar ea 0

Process I D 100, Rout er I D 192. 168. 20. 1, Net work Type BROADCAST, Cost : 1

Tr ansmi t Del ay i s 1 sec, St at e BDR, Pr i or i t y 1

Desi gnat ed Rout er ( I D) 192. 168. 30. 1, I nt er f ace addr ess 192. 168. 30. 2

Backup Desi gnat ed rout er ( I D) 192. 168. 20. 1, I nt er f ace addr ess 192. 168. 30. 1

Ti mer i nt er val s conf i gured, Hel l o 10, Dead 40, Wai t 40, Ret r ansmi t 5

oob- r esync t i meout 40

Hel l o due i n 00: 00: 01


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I ndex 2/ 2, f l ood queue l engt h 0

Next 0x0( 0) / 0x0( 0)

Last f l ood scan l engt h i s 1, maxi mum i s 1

Last f l ood scan t i me i s 0 msec, maxi mumi s 0 msec

Nei ghbor Count i s 1, Adj acent nei ghbor count i s 1

Adj acent wi t h nei ghbor 192. 168. 30. 1 ( Desi gnated Rout er )

Suppr ess hel l o f or 0 nei ghbor ( s)

Gi gabi t Et her net 1/ 0/ 23 i s up, l i ne pr ot ocol i s up (connect ed)

I nt er net Addr ess 192. 168. 20. 2/ 24, Ar ea 0

Process I D 100, Rout er I D 192. 168. 20. 1, Net work Type BROADCAST, Cost : 1

Tr ansmi t Del ay i s 1 sec, St at e BDR, Pr i or i t y 1

Desi gnat ed Rout er ( I D) 192. 168. 10. 1, I nt er f ace addr ess 192. 168. 20. 1

Backup Desi gnat ed rout er ( I D) 192. 168. 20. 1, I nt er f ace addr ess 192. 168. 20. 2

Ti mer i nt er val s conf i gured, Hel l o 10, Dead 40, Wai t 40, Ret r ansmi t 5

oob- r esync t i meout 40

Hel l o due i n 00: 00: 07

Suppor t s Li nk- l ocal Si gnal i ng ( LLS)Ci sco NSF hel per suppor t enabl ed


I ndex 1/ 1, f l ood queue l engt h 0

Next 0x0( 0) / 0x0( 0)

Last f l ood scan l engt h i s 1, maxi mum i s 5

Last f l ood scan t i me i s 0 msec, maxi mumi s 0 msec

Nei ghbor Count i s 1, Adj acent nei ghbor count i s 1

Adj acent wi t h nei ghbor 192. 168. 10. 1 ( Desi gnated Rout er )

Suppr ess hel l o f or 0 nei ghbor ( s)

Verifying the OSPF Status on a D-Link Switch

The following example shows you how to verify if the OSPF is enabled on correct interfaces.

Command Example

swi t ch: admi n# show ospf

Command: show ospf

OSPF Rout er I D : 192. 168. 10. 1

St at e : Enabl ed

OSPF I nt er f ace Set t i ngs

I nt er f ace I P Addr ess Ar ea I D St at e Li nk Met r i c

St at us

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Syst em 10. 90. 90. 90/ 8 0. 0. 0. 0 Di sabl ed Li nk Up 1

10 192.168.10.1/24 0.0.0.0 Enabled Link Up 1


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20 192.168.20.1/24 0.0.0.0 Enabled Link Up 1


OSPF Ar ea Set t i ngs

Ar ea I D Type Stub I mpor t Summary LSA Stub Def aul t Cost Transl at e

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

0. 0. 0. 0 Nor mal None None None


Vi r t ual I nt er f ace Conf i gur at i on

Tr ansi t Vi r t ual Hel l o Dead Aut hent i cat i on Li nk

Ar ea I D Nei ghbor Rout er I nt er val I nt er val St at us

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


OSPF Ar ea Aggr egat i on Set t i ngs

Ar ea I D Aggr egated LSDB Adver t i se

Net wor k Address Type

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


OSPF Host Rout e Set t i ngs

Host Addr ess Met r i c Ar ea I D

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


The following example shows you how to verify if the OSPF neighbor is established.

Command Example

swi t ch: admi n# show ospf nei ghbor

Command: show ospf nei ghbor

I P Addr ess of Rout er I D of Nei ghbor Nei ghborNei ghbor Nei ghbor Pr i or i t y St at e

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

192. 168. 20. 2 192. 168. 20. 2 1 Ful l



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The following example shows you how to check the OSPF interface information.

Command Example

swi t ch: admi n# show ospf i pi f 10

Command: show ospf i pi f 10

I nt erf ace Name: 10 I P Addr ess: 192. 168. 10. 1/ 24 ( Li nk Up)

Net wor k Medi um Type: BROADCAST Met r i c: 1

Ar ea I D: 0. 0. 0. 0 Admi ni st r at i ve St at e: Enabl ed

Pr i ori t y: 1 DR St at e: DR

DR Addr ess: 192. 168. 10. 1 Backup DR Addr ess: None

Hel l o I nt er val : 10 Dead I nt er val : 40

Tr ansmi t Del ay: 1 Ret r ansmi t Ti me: 5

Aut hent i cat i on: None

Passi ve Mode: Di sabl ed


The following example shows you how to verify all the route entries that are learnt by the switches.

Command Example

swi t ch: admi n# show i prout e

Command: show i pr out e

Rout i ng Tabl e

I P Addr ess/ Netmask Gateway I nt er f ace Cost Protocol

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

10. 0. 0. 0/ 8 0. 0. 0. 0 Syst em 1 Local

192. 168. 10. 0/ 24 0. 0. 0. 0 10 1 Local

192. 168. 20. 0/ 24 0. 0. 0. 0 20 1 Local

192.168.30.0/24 192.168.20.2 20 2 OSPF

192.168.40.0/24 192.168.20.2 20 3 OSPF

192.168.50.0/24 192.168.20.2 20 4 OSPF

Tot al Entr i es : 6



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Topology Single OSPF Area

Figure-6 Multiple OSPF Areas Configuration

Configuration

OSPF Configuration on Cisco Switch 1


Step 1

Swi t ch#conf i g ter mi nal

Swi t ch( conf i g) #i nt er f ace gi gabi t Et her net 1/ 0/ 23

Swi t ch( conf i g- i f ) #no swi t chpor t

Swi t ch( conf i g- i f ) #i p addr ess 192. 168. 20. 2 255. 255. 255. 0

Swi t ch( conf i g- i f ) #no shut

Swi t ch( conf i g- i f ) #exi t




Swi t ch( conf i g- i f ) #no shut down


Create two IP interfaces

(192.168.20.0 /

192.168.30.0)

Step 2

Swi t ch( conf i g) #i nt er f ace l oopback 0


Swi t ch( conf i g- i f ) #no shut

Create a Loopback

interface for router ID.

Cisco router prefers the

address of loopback

interface over the

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address of all physical

interfaces while

choosing router ID.

Step 3

Swi t ch( conf i g) #i p r out i ng

Swi t ch( conf i g) #r out er ospf 100

Swi t ch( conf i g- r out er ) #net work 192. 168. 20. 0 0. 0. 0. 255 area

1

Swi t ch( conf i g- r out er ) #net work 192. 168. 30. 0 0. 0. 0. 255 area0

Enable OSPF on specific

interfaces.

OSPF Configuration on Cisco Switch 2


Step 1

Swi t ch#conf i g ter mi nal




Swi t ch( conf i g- i f ) #no shutSwi t ch( conf i g- i f ) #exi t




Swi t ch( conf i g- i f ) #no shut down


Create two IP interfaces(192.168.30.0 /

192.168.40.0)

Step 2

Swi t ch( conf i g) #i nt er f ace l oopback 0

Swi t ch( conf i g- i f ) #i p addr ess 10. 0. 0. 2 255. 255. 255. 255Swi t ch( conf i g- i f ) #no shut

Create a Loopback

interface for router ID.

Cisco router prefers the

address of loopback

interface over the

address of all physical

interfaces while

choosing router ID.

Step 3

Swi t ch( conf i g) #i p r out i ng

Swi t ch( conf i g) #r out er ospf 100

Swi t ch( conf i g- r out er ) #r out er - i d 192. 168. 30. 1


0


2

Enable OSPF on specific

interfaces and set up

router ID

OSPF Configuration on D-Link Switch 1



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Step 1

DGS- 3627: admi n#cr eat e vl an 10 t ag 10

DGS- 3627: admi n#cr eat e vl an 20 t ag 20

DGS- 3627: admi n#conf i g vl an def aul t del ete 1- 16

DGS- 3627: admi n#conf i g vl an 10 add unt agged 1- 8

DGS- 3627: admi n#conf i g vl an 20 add unt agged 9- 16, 23

Create VLAN 10 and

20 and assign relative

ports to each VLAN

Step 2

DGS- 3627: admi n#cr eat e i pi f 10 192. 168. 10. 1/ 24 10


Create two IP


and 20

Step 3

DGS- 3627: admi n#conf i g ospf r out er_i d 192. 168. 10. 1

DGS- 3627: admi n#cr eat e ospf area 0. 0. 0. 1 t ype normal

DGS- 3627: admi n#conf i g ospf i pi f 10 area 0. 0. 0. 1 st ate enabl e


DGS- 3627: admi n#enabl e ospf

Enable OSPF on


assign interfaces on

area 1.

OSPF Configuration on D-Link Switch - 2


Step 1

DGS- 3627: admi n#cr eate vl an 40 t ag 40

DGS- 3627: admi n#cr eate vl an 50 t ag 50

DGS- 3627: admi n#conf i g vl an def aul t del ete 1- 16

DGS- 3627: admi n#conf i g vl an 40 add unt agged 1- 8, 24

DGS- 3627: admi n#conf i g vl an 50 add untagged 9- 16

Create VLAN 40 and 50

and assign relative

ports to each VLAN

Step 2



Create two IP interfaces

on VLAN 40 and 50

Step 3

DGS- 3627: admi n#conf i g ospf r out er_i d 192. 168. 40. 1

DGS- 3627: admi n#cr eat e ospf area 0. 0. 0. 2 t ype normal



DGS- 3627: admi n#enabl e ospf

Enable OSPF on


assign interfaces on

area 2.


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44


Verifying OSPF Information on a Cisco Switch

The following example shows you how to check OSPF detailed information on Cisco Switch. Cisco Switch

uses loopback interface to be Router ID and Area 1 should be created.

Command Example

Catal yst # show ip ospf

Rout i ng Pr ocess " ospf 100" wi t h I D 10.0.0.1

St ar t t i me: 00: 01: 21. 528, Ti me el apsed: 4d19h

Suppor t s onl y si ngl e TOS( TOS0) r out es

Suppor t s opaque LSA


Suppor t s ar ea t r ansi t capabi l i t y

I t i s an ar ea bor der r out er

Rout er i s not or i gi nat i ng r out er - LSAs wi t h maxi mum met r i c

I ni t i al SPF schedul e del ay 5000 msecsMi ni mumhol d t i me bet ween t wo consecut i ve SPFs 10000 msecs

Maxi mum wai t t i me bet ween t wo consecut i ve SPFs 10000 msecs

I ncr ement al - SPF di sabl ed

Mi ni mum LSA i nt er val 5 secs

Mi ni mumLSA ar r i val 1000 msecs

LSA group paci ng t i mer 240 secs

I nt erf ace f l ood paci ng t i mer 33 msecs

Ret r ansmi ssi on paci ng t i mer 66 msecs

Number of exter nal LSA 0. Checksum Sum 0x000000

Number of opaque AS LSA 0. Checksum Sum 0x000000

Number of DCbi t l ess ext ernal and opaque AS LSA 0

Number of DoNot Age ext er nal and opaque AS LSA 0Number of ar eas i n thi s r out er i s 2. 2 normal 0 st ub 0 nssa

Number of ar eas t r ansi t capabl e i s 0

Ext er nal f l ood l i st l engt h 0



Ref erence bandwi dth uni t i s 100 mbps

Area BACKBONE( 0)

Number of i nt er f aces i n t hi s ar ea i s 1




Ar ea r anges ar eNumber of LSA 8. Checksum Sum 0x07E502






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45


Area 1

Number of interfaces in this area is 1




Ar ea r anges ar e

Number of LSA 6. Checksum Sum 0x036A95






Checking OSPF Status on D-Link Switch

The following example shows you how to verify if the OSPF is enabled on correct interfaces and if the area

assignment is correct.

Command Example

swi t ch: admi n# show ospf

Command: show ospf

OSPF Rout er I D : 192. 168. 10. 1

St at e : Enabl ed

OSPF I nt er f ace Set t i ngs

I nt er f ace I P Addr ess Ar ea I D St at e Li nk Met r i c

St at us- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Sys tem 10. 90. 90. 90/ 8 0. 0. 0. 0 Di sabl ed Li nk Up 1

10 192.168.10.1/24 0.0.0.1 Enabled Link Up 1

20 192.168.20.1/24 0.0.0.1 Enabled Link Up 1


OSPF Ar ea Set t i ngs

Ar ea I D Type Stub I mpor t Summary LSA Stub Def aul t Cost Tr ansl ate

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

0. 0. 0. 0 Nor mal None None None0. 0. 0. 1 Nor mal None None None


Vi r t ual I nt er f ace Conf i gur at i on


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46

Tr ansi t Vi r t ual Hel l o Dead Aut hent i cat i on Li nk

Ar ea I D Nei ghbor Rout er I nt er val I nt er val St at us

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


OSPF Ar ea Aggr egat i on Set t i ngs

Ar ea I D Aggr egated LSDB Adver t i se

Net wor k Address Type

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


OSPF Host Rout e Set t i ngs

Host Addr ess Metr i c Ar ea I D

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


The following example shows you how to verify if the OSPF interface information is correct.

Command Example

swi t ch: admi n# show ospf ipif 10

Command: show ospf i pi f 10

I nt er f ace Name: 10 I P Addr ess: 192. 168. 10. 1/ 24 ( Li nk Up)

Net wor k Medi um Type: BROADCAST Met r i c: 1

Area ID: 0.0.0.1 Admi ni st r at i ve St at e: Enabl edPr i or i t y: 1 DR St at e: DR

DR Addr ess: 192. 168. 10. 1 Backup DR Addr ess: None

Hel l o I nt er val : 10 Dead I nt er val : 40

Tr ansmi t Del ay: 1 Ret r ansmi t Ti me: 5

Aut hent i cat i on: None

Passi ve Mode: Di sabl ed



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