jak zbudować własną sieć dystrybucji opartą ometro...
TRANSCRIPT
Marek Janik
Senior Product Manager
Jak zbudować własną sieć dystrybucji opartą
o metro Ethernet, MPLS i DWDM
1
Agenda
Huawei MS-OTNHuawei MS-OTN11
22 Service designService design
Ethernet Ring ProtocolsEthernet Ring Protocols33
MPLS – Hard Pipe SolutionMPLS – Hard Pipe Solution44
2
1999 2001 2007
Year
DEMUX
OTU1
OTU2 OTU3
MUX
Pass through lambda
Regeneration
Add Drop
Fiber Fiber
Traditional WDMOTU+ROADM
�New OTN architecture support ODUk Cross-connecting
�Support OTN to switch at sub-lambda level
�Support ROADM to switch at lambda level
OTNTributary + Centralized Switch + Line + ROADM
From FOADM to ROADM, and to OTN
OTN Electrical Switch Lambda Switch
SDH
OTN fiber
VC ODU PKTPacket
Traditional WDMOTU+ Mux/Demux
�Support ROADM to switch at lambda level
SDH
OTN
Lambda
Switch
fiber
Packet
OTU
Transponder
Muxponder
OTU
OTU OTN electrical cross-connecting for low speed
service grooming.
ROADM optical switch for high speed service,
realizing high efficiency lambda switch without
expensive OEO transfer and manually fiber
connection.
3
Huawei OTN, Best Migration from SDH & WDM
SDH/MSTP
E1/T1, E3/T3
STM-1/4/16/64
FE/GE/10GE Tributary
cards
STM-64
Line
SDI(Video)
Flexible dispatching
VCx
grain
100G TP/MP
10G TP/MP
Traditional WDM
40G TP/MP
10GE/STM-64
40GE/STM-256
100GE
Enormous capacity
Huawei OTN : Flexible dispatching as well as Enormous capacity
10G OTN
4.25G
Tributary
cards10G
Tributary
cards
100M-4.25G Any
10G Any40G
Tributary
cards40G Any
100G OTN
100G
Tributary
cards100G Any
40G OTN
ODUk
grain
OTN
4
100 GbE 100G100 GbE Transponder
40 G Transponder
λ1 100G
OTN
λ1
1st stage
MUXponders
2nd stage
MUXponders
High efficient
one-stop architecture
FE
100M-
4.25G
Any
1
2
8
7
FC 2/4GDVB
STM-1
STM-4
STM-16
λ2
10 G
40/100G
MUXponder
1
2
4
3
10 G
10 G
λ3
10 G
FE/GE
10G
MUXponder
1
2
8
7
FC 2/4G
DVB
STM-1
STM-4
STM-16
40 G 40G 40G
OTN
λ2
40G
OTN
λ310 G10G
Any
1
2
10
9
10 G
10 G
10 G
Manual fiber
connection
Waste of ports &
bandwidth
Extra optical
module is needed
10G/40G/100G OTNTraditional WDM
With tributary-line-separated OTN structure, Both low and high speed service can be mapped into 10/40/100G line
directly without board stacking #
Extra stage
muxponderdirectly
mapping
into
10/40/100G
OTN : One Stop Any Service Mapping
5
Transponder
Transponder
Transponder
OTN Switch
SDH
OTN
ODUOther
OTN
No Switch
SDH
Eth.
Other
Traditional WDM
Universal Switch
SDH
OTN
VC ODU PKTPKT
MS-OTN
MS-OTN
Unified
Transmission
MS-OTN with universal VC/PKT/ODUk switch can relieve challenge from more and more data service, and save TCO
MS-OTN can converge any type of service into the same channel, realizing a unified transmission network for all service
E2E MPLS-TP for low speed PKT service, easy management
SDH switch for traditional TDM service, smoothly migration
ODUk for all high speed service, high efficiency
Unified Platform: Smoothly migrate to MS-OTN
In July 2013, Geneva, Huawei‘s three contributions on MS-OTN had been accepted by
ITU-T SG15 plenary meeting.
6
Convergence Starts with Switch Fabric
IP/MPLS
Eth/MPLS-TP
OTN/SDH
L3
L2
L1
L0 ROADM
Cost
L0
WDM
L0+L1
OTN/SDH
L0+L1+L
2
MS-OTN
7
Further Convergence on Traffic
Page 7
OTNOTN
ODU
k
PKT
SDH
PKT
VC
Universal
Switch
PKT
SDH
GE/10GE/40GE/100G
E
STM-1/4/16/64
OTU-1/2/3/4/#
OTN
OTN
ODU
k
SDH
PKT
VC
PKT
SDH
OTU-1/2/3/4/#
Client
side
Line sideUniversal
SwitchClient
side
Line side
PKT
8
MS-OTN: E2E MPLS-TP supported, Full Flexible Pipe
Average Traffic
If MPLS-TP is enable
on the transport
Devices…
MSTPPCM
Video
SwitchRouterWiFi
Tributary card for service Hybrid line card
FE/GE/10GE... Universal switch
With MPLS –TP
MPLS-TP
PKT/VCx/ODUk
MPLS-TP
MPLS-TP
VLAN
VLAN
Switch
Server
9
Intelligent lease line service for any requirement
2M/STM-N
FE
GE
GE
GE
MS-OTN
Access & Aggr. Core & backbone Access & Aggr.
Lambda
VC/ODU
PW/LSP
Eth/VLAN
ODUVC4
VC12
ODUVC4
VC12
Traffic Traffic
Λ1, Λ2� Λn Λ1, Λ2� Λn
Full granularity, Fixed & Resilient——Intelligent LL pipe
�Full granularity: λ ,TDM(2M/STM-N/ODU), PW/LSP, Eth switch;
�Fixed & Resilient: Fixed LL(λ +ODU+VC); Resilient LL(L2 aggr., LSP/L2VPN);
�Easy Access:Networking with MSTP/PTN, easily covering customer base;
2M/STM-N
LambdaLambda
L2
L1
L0
L2
L1
L0
MSTP
MSTP
MS-OTNMS-OTN MSTP
MSTP
10
MS-OTN, make the network more simple
MS-OTN
BBO
MS-OTNBBO
MCO
MCO
MCO
N*GE
N*GE
MS-OTN
MS-OTN• MS-OTN embedded L2 feature
realize packet traffic convergence
+ = XFP XFP
L2
ME/SDH WDM MS-OTN
• OTN platform improve transport
efficiency
• MS-OTN embed L2 replace
ME/SDH
BBO
N*10GE
BBO
MCO
GE
LSW
MCO
GEGE
OTN
BBO
OTNBBO
MCO
MCO
MCO
N*GE
N*GE
OTNOTN
11
Agenda
Huawei MS-OTNHuawei MS-OTN11
22 Service designService design
Ethernet Ring ProtocolsEthernet Ring Protocols33
MPLS – Hard Pipe SolutionMPLS – Hard Pipe Solution44
12
Metro network Architecture overview
BRAS
BackboneAccess Node Backhaul
SR/PEIP/MPLS
HGW
WiFi /
Bluetooth
Home/Business
xDSL / FTTx
··
DSLAM
OLT
Switch
IPTV
IMS Core
Internet/SPBusiness
Residential
BNG
SR/PE
BRAS
DWDM/OTN
HGW, access
computer、phone、
STB
Access FTTX、
DSLAM、LSW
Responsible for business distribute, transmit,
extending distance
Authentication,
authorization,
accounting, etc.
Existing network architecture:
1. BRAS and SR are separated, HSI uplink to BRAS, VOIP / IPTV uplink to SR
2. Different services using a different IP address, use different VPN pipeline isolation
Internet、IPTV、
VOIP service
BNG:Broadband Network Gateway
13
Page 13
E2E VPWS Packet Service Solution
MME/SGW
Access
ring
eNB
NodeB
RNC
BTS
backbone
OTN
Aggregation
MS-OTN
C-VLAN E2E VPWS Native IP&L3VPNC-VLAN
BSC
U
N
I
PWvlan1
Tunnel label be switched in
transit site
PW U
N
I
U
N
I
U
N
I
vlan2
N
N
I
N
N
I
N
N
I
N
N
I
Working Tunnel
Protecting Tunnel
14
Page 14
E2E VPWS+VPLS Packet Service Solution
MME/SGW
Access
ring
eNB
NodeB
RNC
BTS
backbone
OTN
Aggr ring
MS-OTN
BSC
U
N
I
PWvlan1
Tunnel label be switched in
transit site
PW
vlan1U
N
IU
N
I
vlan1
N
N
I
N
N
I
N
N
I
N
N
I
Working Tunnel
Protecting Tunnel
VPWS + VPLS Native IP&L3VPNC-VLAN C-VLAN
VSI
15
Agenda
Huawei MS-OTNHuawei MS-OTN11
22 Service designService design
Ethernet Ring ProtocolsEthernet Ring Protocols33
MPLS – Hard Pipe SolutionMPLS – Hard Pipe Solution44
16
�Drawbacks of STP – The convergence time is too long!
�STP (spanning-tree protocol) is built for the redundant links and loop avoidance network.
When topology changes, STP takes about 30-50 seconds to converge.
�RSTP (Rapid STP) improves the speed of convergence for bridged network from 30-50
seconds to about 4 seconds, by immediately transitioning root and designated ports to the
forwarding state.
�Ring Protocols only spends 50-200 ms converging but it uses a ring topology instead of tree
topology.
Ring protocols
STP RSTP Ring Proto
Topology Type Any Topology Any Topology Ring Topology
Convergence Time 30-50 seconds 6 seconds 50-250ms*
17
Page 17
Ring Network
ProtocolAdvantage Disadvantage
STP/RSTP/MSTP
•Apply to all Layer 2 networks.
•Are standard IEEE protocols that allow Huawei devices to
communicate with non-Huawei devices.
Provides a low convergence speed on a large network, which cannot meet
the carrier-class reliability requirement.
RRPPFeatures fast convergence, meeting the carrier-class reliability
requirement.
•Supports only level-1 subrings on ring networks.
•Is a Huawei proprietary protocol that does not support interoperability
between Huawei and non-Huawei devices.
SEP
•Applies to all Layer 2 networks.
•Features fast convergence, meeting the carrier-class reliability
requirement.
•Displays the topology of an entire ring, facilitating fault location
and device maintenance.
Is a Huawei proprietary protocol that does not support interoperability
between Huawei and non-Huawei devices.
ERPSFeatures fast convergence, meeting the carrier-class reliability
requirement.Supports single-ring and multi-ring networking.
Introduction to ERPS
On a ring network, devices supporting ERPS can communicate with each other regardless of their
manufacturers.
� ERPS is a protocol defined by the ITU-T to prevent loops at Layer 2. Because it is defined in
Recommendation ITU-T G.8032/Y.1344, it is also called G.8032. ERPS defines R-APS PDUs and the
protection switching mechanism.
� ERPS blocks a specified port to prevent loops at the Ethernet link layer.
� ERPS has two versions: ERPSv1 released in June 2008 and ERPSv2 released in August 2010.
18
ERPSv1 and ERPSv2
Function ERPSv1 ERPSv2
Ring type Supports single rings only.
Supports single rings and multi-
rings. A multi-ring topology
comprises major rings and sub-
rings.
Port role configurationSupports the ring protection link (RPL) owner
port and ordinary ports.
Supports the RPL owner port, RPL
neighbor port, and ordinary ports.
Topology change notification Not supported. Supported.
R-APS PDU transmission modes
on sub-ringsNot supported. Supported.
Revertive and non-revertive
switching
Supports revertive switching by default and does
not support non-revertive switching or switching
mode configuration.
Supported.
Manual port blocking Not supported.Supports forced switch (FS) and
manual switch (MS).
19
Topologie ERPS – Single-Ring, Multi-
Instance
20
Topologie ERPS – Multi-Ring and Ladder
21
Agenda
Huawei MS-OTNHuawei MS-OTN11
22 Service designService design
Ethernet Ring ProtocolsEthernet Ring Protocols33
MPLS – Hard Pipe SolutionMPLS – Hard Pipe Solution44
22
Innovated Technology for High Quality
IP
Hard
Pipe
HardPipe
Low Latency
High Reliability
� Guaranteed bandwidth by reserved hardware resource
� Segregate the scheduling
� OAM fault detection
� Hot standby path
protection
� 50ms Protection
switching time
guarantee
� Independent resources, no scheduling required
� 100us guarantee for even traffic congestion
Soft
Pipe
Hard
pipe
SDH
ATM
Voice
Video
HSI
Ph
ysic
al L
ink
23
Dual plane on Single Chassis
• Has both advantages of IP and SDH
• Hard pipe and Normal Pipe on different plane
Dual Plane
• Independent scheduling resource
• Switch Fabric resource guaranted
Segregate
• BW for hardened pipe can be adjusted anytime
• Unify BW scheduling, efficient BW usage.
Adjustable
Normal
Pipe
Hard
pipe
SDH
ATM
Voice
Video
HSI
Ph
ysic
al L
ink
Leased Line Quantity bandwidth Priority
10GE
Hard Pipe 2G
VLL 3 100M
No need
process
VPLS 3 100M
VLL 1 1G
E1 CES 1 2M
Available . 398M
Normal
Traffic8G
VPLS/VLL/L3
VPNX
Left
Tradition
8 Priority
PQ+WFQIP Packets, X
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