H3C S12500 Series Manuel utilisateur

H3C S12500 Series Routing Switches

SPB Configuration Guide

Hangzhou H3C Technologies Co., Ltd.

http://www.h3c.com

Software version: S12500-CMW730-R7374

Document version: 6W731-20150528

No part of this manual may be reproduced or transmitted in any form or by any means without prior

written consent of Hangzhou H3C Technologies Co., Ltd.

Trademarks

H3C, , H3CS, H3CIE, H3CNE, Aolynk, , H3Care, , IRF, NetPilot, Netflow,

SecEngine, SecPath, SecCenter, SecBlade, Comware, ITCMM and HUASAN are trademarks of

Hangzhou H3C Technologies Co., Ltd.

All other trademarks that may be mentioned in this manual are the property of their respective owners

Notice

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute the warranty of any kind, express or implied.

Preface

The H3C S12500 documentation set includes 17 configuration guides. These guides describe the

software features for the H3C S12500 Series 10G Core Routing Switches and guide you through the

software configuration procedures. These guides also provide configuration examples to help you apply

software features to different network scenarios.

The SPB Configuration Guide describes Shortest Path Bridging MAC Mode (SPBM) fundamentals and

configuration. SPBM enables multipath routing in an Ethernet mesh network by using IS-IS as the control

protocol. The technology allows all paths to be active, supports equal cost paths, and provides shortest

path forwarding in an Ethernet mesh network. SPBM provides faster convergence, higher link efficiency,

and larger Layer 2 topologies than conventional spanning tree protocols such as MSTP.

This preface includes:

•Audience

•Conventions

•About the H3C S12500 documentation set

•Obtaining documentation

•Technical support

•Documentation feedback

Audience

This documentation is intended for:

•Network planners

•Field technical support and servicing engineers

•Network administrators working with the S12500 series

Conventions

This section describes the conventions used in this documentation set.

Command conventions

Convention Descri

tion

Boldface Bold text represents commands and keywords that you enter literally as shown.

Italic Italic text represents arguments that you replace with actual values.

[ ] Square brackets enclose syntax choices (keywords or arguments) that are optional.

{ x | y | ... }

Braces enclose a set of required syntax choices separated by vertical bars, from which

you select one.

[ x | y | ... ]

Square brackets enclose a set of optional syntax choices separated by vertical bars, from

which you select one or none.

Convention Descri

tion

{ x | y | ... } *

Asterisk marked braces enclose a set of required syntax choices separated by vertical

bars, from which you select at least one.

[ x | y | ... ] *

Asterisk marked square brackets enclose optional syntax choices separated by vertical

bars, from which you select one choice, multiple choices, or none.

&<1-n> The argument or keyword and argument combination before the ampersand (&) sign can

be entered 1 to n times.

# A line that starts with a pound (#) sign is comments.

GUI conventions

Convention Descri

tion

Boldface Window names, button names, field names, and menu items are in Boldface. For

example, the New User window appears; click OK.

> Multi-level menus are separated by angle brackets. For example, File > Create > Folder.

Symbols

Convention Descri

tion

WARNING An alert that calls attention to important information that if not understood or followed can

result in personal injury.

CAUTION An alert that calls attention to important information that if not understood or followed can

result in data loss, data corruption, or damage to hardware or software.

IMPORTANT An alert that calls attention to essential information.

NOTE An alert that contains additional or supplementary information.

TIP An alert that provides helpful information.

Network topology icons

Represents a generic network device, such as a router, switch, or firewall.

Represents a routing-capable device, such as a router or Layer 3 switch.

Represents a generic switch, such as a Layer 2 or Layer 3 switch, or a router that supports

Layer 2 forwarding and other Layer 2 features.

Represents an access controller, a unified wired-WLAN module, or the access controller

engine on a unified wired-WLAN switch.

Represents an access point.

Represents a mesh access point.



Represents omnidirectional signals.

Represents directional signals.

Represents a security product, such as a firewall, UTM, multiservice security gateway, or

load-balancing device.

Represents a security card, such as a firewall, load-balancing, NetStream, SSL VPN, IPS,

or ACG card.

Port numbering in examples

The port numbers in this document are for illustration only and might be unavailable on your device.

About the H3C S12500 documentation set

The H3C S12500 documentation set includes:

Cate

Documents

Pur

oses

Product description and

specifications

Marketing brochures Describe product specifications and benefits.

Technology white papers

Provide an in-depth description of software features

and technologies.

Card datasheets Describe card specifications, features, and

standards.

Hardware specifications

and installation

Regulatory compliance

and safety information

Provides regulatory information and the safety

instructions that must be followed during installation.

Installation guide Provides a complete guide to hardware installation

and hardware specifications.

Quick start

Guides you through initial installation and setup

procedures to help you quickly set up and use your

switch with the minimum configuration.

H3C Pluggable SFP

[SFP+][XFP] Transceiver

Modules Installation

Guide

Guides you through installing SFP/SFP+/XFP

transceiver modules.

H3C QSFP+ Transceiver

Modules[Cables]

Installation Guide

Guides you through installing QSFP+ transceiver

modules.

H3C CFP Transceiver

Modules Installation

Guide

Guides you through installing CFP transceiver

modules.

Adjustable Slider Rail

Installation Guide

Guides you through installing adjustable slider rails

to a rack.

H3C High-End Network

Products Hot-Swappable

Module Manual

Describes the hot-swappable modules available for

the H3C high-end network products, their external

views, and specifications.



Cate

Documents

Pur

oses

Software configuration

Configuration guides Describe software features and configuration

procedures.

Command references Provide a quick reference to all available

commands.

Operations and

maintenance

System log messages Explains the system log messages.

Trap messages Explains the trap messages.

MIB Companion Describes the MIBs for the software release.

Release notes

Provide information about the product release,

including the version history, hardware and software

compatibility matrix, version upgrade information,

technical support information, and software

upgrading.

Obtaining documentation

Access the most up-to-date H3C product documentation on the World Wide Web

at http://www.h3c.com.

Click the links on the top navigation bar to obtain different categories of product documentation:

[Technical Support & Documents > Technical Documents]—Provides hardware installation, software

upgrading, and software feature configuration and maintenance documentation.

[Products & Solutions]—Provides information about products and technologies, as well as solutions.

[Technical Support & Documents > Software Download]—Provides the documentation released with the

software version.

Technical support

servic[email protected]

http://www.h3c.com

Documentation feedback

You can e-mail your comments about product documentation to [email protected].

We appreciate your comments.

Contents

SPBM overview ···························································································································································· 1

SPBM network model························································································································································1

Terminology ·······································································································································································1

Area···········································································································································································1

BCB ············································································································································································2

BEB·············································································································································································2

B-MAC, B-VLAN························································································································································2

Customer network port, provider network port ·····································································································2

Ethernet service instance··········································································································································2

I-SID············································································································································································2

ISIS-SPB······································································································································································2

LSDB···········································································································································································3

MAC-in-MAC ····························································································································································3

PW ·············································································································································································3

SPB VSI ······································································································································································3

SPBM packet types····························································································································································3

ISIS-SPB control packets···········································································································································3

SPBM data packet····················································································································································4

Working mechanisms ·······················································································································································4

Formation and maintenance of ISIS-SPB adjacencies ··························································································5

MAC address learning ············································································································································5

Data paths·································································································································································5

SPBM multicast address···········································································································································8

Multiple SPB VSIs ······························································································································································9

Load balancing ······························································································································································ 10

B-VLAN to ECT algorithm mapping····················································································································· 10

ECT migration ························································································································································ 11

Loop prevention······························································································································································ 12

Multicast B-VLAN···························································································································································· 12

Fast channel for quick spread of LSPs·························································································································· 12

Protocols and standards ················································································································································ 12

Configuring SPBM······················································································································································13

Configuration restrictions and guidelines···················································································································· 13

Hardware restrictions············································································································································ 13

Feature compatibility requirements······················································································································ 14

Licensing requirements·········································································································································· 15

SPBM configuration task list·········································································································································· 15

Configuring basic SPBM settings on BEBs and BCBs································································································· 16

Configuring MST region parameters··················································································································· 16

Enabling SPBM ······················································································································································ 17

Configuring customer-side settings on BEBs ················································································································ 17

Enabling L2VPN ···················································································································································· 17

Creating an SPB VSI ············································································································································· 18

Assigning a B-VLAN to an SPB VSI ····················································································································· 18

Configuring Ethernet service instances on BEBs································································································· 18

Configuring the SPBM multicast replication mode on BEBs·············································································· 19

Enabling the multicast B-VLAN feature························································································································· 20

Optimizing the SPBM network······································································································································ 20

Configuring the SPSource ID································································································································ 21

Configuring the bridge priority···························································································································· 21

Configuring a link metric value for a provider network port············································································ 21

Mapping B-VLANs to an ECT algorithm ············································································································· 22

Performing ECT migration for an SPB VSI ·········································································································· 23

Enabling dynamic hostname exchange ·············································································································· 24

Configuring Graceful Restart for ISIS-SPB··········································································································· 25

Tuning ISIS-SPB adjacency maintenance settings ······························································································ 25

Tuning ISIS-SPB LSP timers ···································································································································· 26

Tuning the SPF calculation timer ·························································································································· 29

Setting the LSDB overload bit······························································································································· 30

Enabling outputting ISIS-SPB adjacency changes to the configuration terminal············································· 30

Configuring the group MAC address for ISIS-SPB····························································································· 30

Configuring ISIS-SPB authentication ···················································································································· 31

Configuring SNMP notifications and context for SPBM···················································································· 32

Configuring the AP mode·············································································································································· 33

Displaying and maintaining SPBM ······························································································································ 33

SPBM configuration examples······································································································································ 36

SPBM with head-end replication configuration example ·················································································· 36

SPBM with tandem replication configuration example ····················································································· 39

ECT migration example ········································································································································ 42

Index ···········································································································································································46

SPBM overview

IEEE 802.1aq Shortest Path Bridging (SPB) enables multipath routing in an Ethernet mesh network by

using IS-IS as the control protocol. The technology allows all paths to be active, supports equal cost paths,

and provides shortest path forwarding in an Ethernet mesh network. IEEE 802.1aq SPB provides faster

convergence, higher link efficiency, and larger Layer 2 topologies than conventional spanning tree

protocols such as MSTP.

Shortest path bridging MAC mode (SPBM) is one bridging method of IEEE 802.1aq SPB. This method

encapsulates Ethernet frames into MAC-in-MAC frames in compliance with IEEE 802.1ah PBB.

SPBM network model

As shown in Figure 1, the SPBM network includes backbone edge bridges and backbone core bridges.

Backbone edge bridges connect customer sites to the SPBM network.

The nodes in the SPBM network run ISIS-SPB to prevent loops and calculate the shortest path for a frame.

Figure 1 SPBM network model

Terminology

Area

An SPBM area is a subdomain of an SPBM network. The device supports only one area.

Customer

site Customer

site

Customer

site

Customer

site

SPBM

network

BCB BCB

BCBBCB

BEB BEB

BCB

Backbone core bridges (BCBs) are core nodes of an SPBM network. They are identical to the P devices

in an MPLS VPN network. BCBs forward MAC-in-MAC frames based on the B-MAC and B-VLAN. They

do not learn customer MAC (C-MAC) addresses.

BEB

Backbone edge bridges (BEBs) are edge nodes of the SPBM network. They are identical to PEs in an

MPLS VPN network. BEBs encapsulate customer frames into MAC-in-MAC frames before forwarding

them to the SPBM network. BEBs also decapsulate MAC-in-MAC frames before sending them to a

customer site.

B-MAC, B-VLAN

Backbone MAC addresses (B-MACs) are bridge MAC addresses associated with SPBM bridges.

Backbone VLANs (B-VLANs) are VLANs assigned by the service provider for transmitting customer traffic

on the SPBM network.

For customer frames to be transmitted across an SPBM network, the ingress BEB encapsulates them in

MAC-in-MAC format. In the outer frame header, the source MAC address is a B-MAC of the ingress BEB,

and the destination MAC is a B-MAC of the egress BEB. All devices in the SPBM network forward the

MAC-in-MAC frames based on the destination B-MAC and B-VLAN.

Customer network port, provider network port

On a BEB, a customer network port (CNP) connects to a customer site and a provider network port (PNP)

connects to the SPBM network.

Ethernet service instance

An Ethernet service instance provides forwarding service for a set of C-VLANs. To extend C-VLANs across

customer sites over an SPBM network, you must configure Ethernet service instances on BEBs' customer

edge ports and map them to SPB VSIs.

For more information about Ethernet service instances, see VPLS in MPLS Configuration Guide.

I-SID

A backbone services instance identifier (I-SID) uniquely identifies a MAC-in-MAC service instance (also

called an "SPB VSI") provided by the service provider.

ISIS-SPB

ISIS-SPB is the control protocol for an SPBM network to calculate shortest path trees (SPTs) and maintain

adjacencies between neighbors.

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