cisco proprietary protocol classless routing protocol metric (32 bit) : composite metric (bw +...

• Cisco proprietary protocol

• Classless routing protocol

• Metric (32 bit) : Composite Metric

(BW + Delay) by default.

• Administrative distance is 90

• Updates are sent through Multicast IP address

(224.0.0.10 ).

Enhanced Interior Gateway Routing Protocol

•Max Hop count is 224 (100 by default)

•Supports IP, IPX and Apple Talk protocols

•Hello packets are sent every 5 seconds

•Convergence rate is fast

Enhanced Interior Gateway Routing Protocol

Autonomous System

• A unique number identifying the Routing domain of

the routers.

Ranges from 1- 65535

Public – 1 – 64512

Private – 64513 – 65535

• An autonomous system is a collection of networks

under a common administrative domain

• Interior Gateway

Protocol

• Routing protocols used

within an autonomous

system

• All routers will be

routing within the

same Autonomous

boundary

• RIP, IGRP, EIGRP,

OSPF, IS-IS

• Exterior Gateway

Protocol

• Routing protocol used

between different

autonomous systems

• Routers in different AS

need an EGP

• Border Gateway

Protocol is extensively

used as EGP

IGP EGP

Routing Protocol Classification

XYZ - AS 100 ABC – AS 200

– IGPs operate within an autonomous system– EGPs connect different autonomous systems

EGPs: BGP

IGPs: RIP, OSPF,

IGRP, EIGRP

IGPs: RIP, OSPF,

IGRP, EIGRP

IGP & EGP

EIGRP Tables

• Neighbor Table: Contains information about directly neighbors.

• Topology Table: Contains entries for all the destinations, along with feasible distance, any feasible successor, Advertised distance, and the calculated cost.

• Routing Table: Entries with the best path for each destination from the Topology Table are moved into Routing Table.

EIGRP Terminology

• Feasible Distance: Feasible distance (FD) is the cost of the best route to a destination, including the local link cost.

• Reported Distance: The cost of a route as advertised by the neighbor, so it does not include the local link costIf the advertised distance is less than the feasible distance, the route is tagged as a feasible successor.

• Successor: The neighbor with best cost to the destination.

• Feasible Successor: The neighbor with second best cost to the destination.

EIGRP - Network Diagram

LAN - 192.168.1.0/24 LAN – 192.168.2.0/24

E0 192.168.3.1/24

LAN - 192.168.3.0/24

E0 192.168.1.1/24

E0 192.168.2.1/24

10.0.0.1/8S0

S110.0.0.2/8

11.0.0.1/8S0

S111.0.0.2/8

HYD CHE BAN

• Works only on Cisco Routers

Disadvantages of EIGRP

exitHyderabad(config-if)#Hyderabad(config)#

telnet 192.168.1.1

================================Welcome to Hyderabad Router================================User Access Verificationpassword :****

****enable

configure terminal

interface serial 0ip address 10.0.0.1 255.0.0.0no shutclockrate 64000encapsulation hdlc

Hyderabad>password :Hyderabad#Enter configuration commands, one per line. End with CNTL/Z.Hyderabad(config)#Hyderabad(config-if)#Hyderabad(config-if)#Hyderabad(config-if)#Hyderabad(config-if)#

Microsoft Windows 2000 [Version 5.00.2195](C) Copyright 1985-2000 Microsoft Corp.C:\>Connecting .....

Directly Connected Networks on HYDERABAD Router

192.168.1.010.0.0.0

Directly Connected Networks on HYDERABAD Router

192.168.1.010.0.0.0

Hyderabad(config)#router eigrp 10

Hyderabad(config-router)#

Hyderabad(config-router)# network 192.168.1.0Hyderabad(config-router)# network 10.0.0.0

no ip routingHyderabad(config)#

Hyderabad(config)#ip routing

Configuring EIGRPRouter(config)# router eigrp <as no>Router(config-router)# network <Network ID>


show ip routeHyderabad#Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i- IS-IS, L1-IS-IS level-1, L2-IS-IS level-2,*- candidate default U - per-user static route, o - ODR

Gateway of last resort is not set

C 10.0.0.0/8 is directly connected, Serial0D 11.0.0.0/8 [90/2681856] via 10.0.0.2, 00:00:49, Serial0C 192.168.1.0/24 is directly connected, Ethernet0D 192.168.2.0/24 [90/2195456] via 10.0.0.2, 00:00:49, Serial0D 192.168.3.0/24 [90/2707456] via 10.0.0.2, 00:00:25, Serial0Hyderabad#

^Z

Hyderabad(config)#router eigrp 10

Hyderabad(config-router)#

Hyderabad(config-router)# network 192.168.1.0Hyderabad(config-router)# network 10.0.0.0

no ip routingHyderabad(config)#

Hyderabad(config)#ip routing

D – for EIGRP routes D – for EIGRP routes 90 is nothing but Administrative Distance

90 is nothing but Administrative Distance

Metric of EIGRP Composite Metric

Metric of EIGRP Composite Metric

show ip eigrp topologyHyderabad#IP-EIGRP Topology Table for process 10

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - Reply status

P 10.0.0.0/8, 1 successors, FD is 2169856 via Connected, Serial0P 11.0.0.0/8, 1 successors, FD is 2681856 via 10.0.0.2 (2681856/2169856), Serial0P 192.168.1.0/24, 1 successors, FD is 281600 via Connected, Ethernet0P 192.168.2.0/24, 1 successors, FD is 2195456 via 10.0.0.2 (2195456/281600), Serial0P 192.168.3.0/24, 1 successors, FD is 2707456 via 10.0.0.2 (2707456/2195456), Serial0Hyderabad# show ip eigrp neighborsIP-EIGRP neighbors for process 10H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num0 10.0.0.2 Se0 13 00:07:24 42 252 0 8Hyderabad#

Chennai(config-if)#Chennai(config-if)#

================================Welcome to Chennai Router================================User Access Verificationpassword :****

****enable

configure terminal

ip address 10.0.0.2 255.0.0.0no shutencapsulation hdlcinterface serial 0

Chennai>password :Chennai#Enter configuration commands, one per line. End with CNTL/Z.Chennai(config)#Chennai(config-if)#Chennai(config-if)#Chennai(config-if)#Chennai(config-if)#


Chennai(config-if)#

telnet 192.168.2.1

interface serial 1

ip address 11.0.0.1 255.0.0.0no shutencapsulation hdlc

Directly Connected Networks on CHENNAI Router192.168.2.0

10.0.0.011.0.0.0

Directly Connected Networks on CHENNAI Router192.168.2.0

10.0.0.011.0.0.0

Chennai(config)#router eigrp 10

Chennai(config-router)#

Chennai(config-router)# network 192.168.2.0Chennai(config-router)# network 10.0.0.0

no ip routingChennai(config)#

Chennai(config)#ip routing

network 11.0.0.0Chennai(config-router)# Configuring EIGRP

Router(config)# router eigrp <as no>Router(config-router)# network <Network ID>


show ip routeChennai#Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i- IS-IS, L1-IS-IS level-1, L2-IS-IS level-2,*- candidate default U - per-user static route, o - ODR


C 10.0.0.0/8 is directly connected, Serial1C 11.0.0.0/8 is directly connected, Serial0D 192.168.1.0/24 [90/2195456] via 10.0.0.1, 00:01:27, Serial1C 192.168.2.0/24 is directly connected, Ethernet0D 192.168.3.0/24 [90/2195456] via 11.0.0.2, 00:01:00, Serial0Chennai#

^Z

Chennai(config)#router eigrp 10

Chennai(config-router)#

Chennai(config-router)# network 192.168.2.0Chennai(config-router)# network 10.0.0.0

no ip routingChennai(config)#

Chennai(config)#ip routing

network 11.0.0.0Chennai(config-router)#



Metric of IGRP Composite Metric


show ip eigrp topologyChennai#IP-EIGRP Topology Table for process 10Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - Reply status

P 10.0.0.0/8, 1 successors, FD is 2169856 via Connected, Serial1P 11.0.0.0/8, 1 successors, FD is 2169856 via Connected, Serial0P 192.168.1.0/24, 1 successors, FD is 2195456 via 10.0.0.1 (2195456/281600), Serial1P 192.168.2.0/24, 1 successors, FD is 281600 via Connected, Ethernet0P 192.168.3.0/24, 1 successors, FD is 2195456 via 11.0.0.2 (2195456/281600), Serial0Chennai# show ip eigrp neighborsIP-EIGRP neighbors for process 10H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num1 11.0.0.2 Se0 12 00:11:34 389 2334 0 40 10.0.0.1 Se1 13 00:12:02 27 200 0 5Chennai#

exitBanglore(config-if)#Banglore(config)#

================================Welcome to Banglore Router================================User Access Verificationpassword :****

****enable

configure terminal

ip address 11.0.0.2 255.0.0.0no shutclockrate 64000encapsulation hdlc

Banglore>password :Banglore#Enter configuration commands, one per line. End with CNTL/Z.Banglore(config)#Banglore(config-if)#Banglore(config-if)#Banglore(config-if)#Banglore(config-if)#


telnet 192.168.3.1

interface serial 1

Directly Connected Networks on Banglore Router192.168.3.0

11.0.0.0

Directly Connected Networks on Banglore Router192.168.3.0

11.0.0.0

Banglore(config)#router eigrp 10

Banglore(config-router)#

Banglore(config-router)# network 192.168.3.0Banglore(config-router)# network 11.0.0.0

no ip routingBanglore(config)#

Banglore(config)#ip routing



show ip routeBanglore#Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i- IS-IS, L1-IS-IS level-1, L2-IS-IS level-2,*- candidate default U - per-user static route, o - ODR


D 10.0.0.0/8 [90/2681856] via 11.0.0.1, 00:01:32, Serial1C 11.0.0.0/8 is directly connected, Serial1D 192.168.1.0/24 [90/2707456] via 11.0.0.1, 00:01:32, Serial1D 192.168.2.0/24 [90/2195456] via 11.0.0.1, 00:01:32, Serial1C 192.168.3.0/24 is directly connected, Ethernet0Banglore#

^Z

Banglore(config)#router eigrp 10

Banglore(config-router)#

Banglore(config-router)# network 192.168.3.0Banglore(config-router)# network 11.0.0.0

no ip routingBanglore(config)#

Banglore(config)#ip routing





show ip eigrp topologyBanglore#IP-EIGRP Topology Table for process 10

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - Reply status

P 10.0.0.0/8, 1 successors, FD is 2681856 via 11.0.0.1 (2681856/2169856), Serial1P 11.0.0.0/8, 1 successors, FD is 2169856 via Connected, Serial1P 192.168.1.0/24, 1 successors, FD is 2707456 via 11.0.0.1 (2707456/2195456), Serial1P 192.168.2.0/24, 1 successors, FD is 2195456 via 11.0.0.1 (2195456/281600), Serial1P 192.168.3.0/24, 1 successors, FD is 281600 via Connected, Ethernet0Banglore#show ip eigrp neighborsIP-EIGRP neighbors for process 10H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num0 11.0.0.1 Se1 14 00:14:15 36 216 0 7Banglore#

ping 192.168.3.10Hyderabad#Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 192.168.3.10, timeout is 2 seconds:

Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 msHyderabad#

!!!!!

ping 192.168.2.10Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 192.168.2.10, timeout is 2 seconds:

Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 msHyderabad#

!!!!!

ping 192.168.1.10Chennai#Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 192.168.1.10, timeout is 2 seconds:

Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 msChennai#

!!!!!


Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 msChennai#

!!!!!

ping 192.168.1.10Banglore#Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 192.168.1.10, timeout is 2 seconds:

Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 msBanglore#

!!!!!


Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 msBanglore#

!!!!!

cisco proprietary protocol classless routing protocol metric (32 bit) : composite metric (bw +...

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