H3C S12500 Series Bedienungsanleitung

H3C S12500 Series Routing Switches

EVI Configuration Guide

Hangzhou H3C Technologies Co., Ltd.

http://www.h3c.com

Software version: S12500-CMW710-R7128

Document version: 6W710-20121130

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, , Aolynk, , H3Care, , TOP G, , IRF, NetPilot, Neocean, NeoVTL,

SecPro, SecPoint, SecEngine, SecPath, Comware, Secware, Storware, NQA, VVG, V2G, VnG, PSPT,

XGbus, N-Bus, TiGem, InnoVision 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 13 configuration guides, which describe the software

features for the H3C S12500 Series Routing Switches and guide you through the software configuration

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

features to different network scenarios.

The EVI Configuration Guide describes the Ethernet Virtualization Interconnect (EVI) fundamentals and

configuration. EVI is a MAC-in-IP technology that provides Layer 2 connectivity between distant Layer 2

network sites across an IP routed network. It is used for connecting geographically dispersed sites of a

virtualized large-scale data center that requires Layer 2 adjacency.

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.

{ x | y | ... } *

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

bars, from which you select at least one.

Convention Descri

tion

[ 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.

Port numbering in examples

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

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

Cate

Documents

Pur

oses

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.

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.

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

You can 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

servi[email protected]

http://www.h3c.com

Documentation feedback

You can e-mail your comments about product documentation to info@h3c.com.

We appreciate your comments.

Contents

Configuring EVI···························································································································································· 1

Overview············································································································································································1

Layer 2 connectivity extension issues ·····················································································································1

Network topologies··················································································································································2

Terminology ······························································································································································3

Working mechanism················································································································································4

Placement of Layer 3 gateways ······························································································································7

ARP flooding suppression········································································································································7

Selective flooding ·····················································································································································8

Path MTU···································································································································································8

EVI configuration task list ·················································································································································9

Configuring EVI basic functions·······································································································································9

Configuring an IPv4 EVI tunnel ·······························································································································9

Assigning a network ID to the EVI tunnel············································································································ 10

Specifying extended VLANs on the EVI tunnel··································································································· 10

Configuring ENDP················································································································································· 11

Enabling EVI on transport-facing physical interfaces ························································································ 12

Tuning EVI IS-IS parameters ·········································································································································· 13

EVI IS-IS configuration task list ····························································································································· 13

Configuring an EVI IS-IS process ························································································································· 13

Optimizing an EVI IS-IS network·························································································································· 14

Configuring graceful restart for an EVI IS-IS process························································································· 17

Increasing the maximum number of MAC entries in an LSP for an EVI IS-IS process ···································· 18

Enabling EVI ARP flooding suppression······················································································································· 18

Enabling selective flooding for a MAC address········································································································· 19

Displaying and maintaining EVI··································································································································· 19

EVI configuration examples ·········································································································································· 20

Single-homed EVI network configuration example ···························································································· 21

Multiple-EVI-networks configuration example····································································································· 64H26

29HEVI Layer 2 multicast configuration example ····································································································· 65H28

30HIndex ···········································································································································································66H32

Configuring EVI

Overview

Ethernet Virtualization Interconnect (EVI) is a MAC-in-IP technology that provides Layer 2 connectivity

between distant Layer 2 network sites across an IP routed network. It is used for connecting

geographically dispersed sites of a virtualized large-scale data center that requires Layer 2 adjacency

(see Figure 1).

EVI enables long-distance virtual machine workload mobility and data mobility, disaster recovery and

business continuity. For example, virtual machines can move between data center sites without changing

their IP addresses, so their movements are transparent to users and do not interrupt traffic.

Figure 1 Virtual machine migration

Layer 2 connectivity extension issues

EVI resolves the following Layer 2 connectivity extension issues:

•Site independence—EVI keeps protocol failures, such as broadcast storms, from propagating

across sites.

•Transport independence—EVI has no special requirements for site location or transport network

type, except that the transport network can forward IP packets.

•High availability—EVI supports redundant edge devices and has a loop-free mechanism to prevent

loops for a multihomed network site.

•Link efficiency—EVI optimizes the inter-site multicast and broadcast transmission mechanism and

implements load-sharing on redundant links.

•Site and transport transparency—EVI is both site and transport network transparent. It has no

special site or transport network topology requirements.

•Easy management and maintenance—EVI requires deployment only on edge devices and does not

introduce any topology change or configuration within sites or the transport network.

Network topologies

As shown in Figure 2, an EVI network comprises one or multiple edge devices at each site. These sites are

connected through virtual links across an IP-based transport network and run the EVI IS-IS protocol to

advertise their MAC address entries to each other. EVI maintains MAC routing information on the edge

devices without changing the forwarding or routing information within the sites or the transport network.

Figure 2 EVI network

EVI supports multiple EVI networks on an edge device for extending different VLANs across the Layer 3

network. One EVI network can convey multiple VLANs, but one VLAN can map to only one EVI network.

Each EVI network has separate network parameters and independently forwards traffic.

As shown in Figure 3, EVI network 1 extends VLAN 100 and VLAN 101 to Site 2, Site 3, and Site 4 for

Web access traffic. EVI network 2 extends VLAN 4000 (the management VLAN) to all sites, and EVI

network 3 extends VLANs 50 to 80 between Site 1 and Site 4 for database traffic.

Transport network Site network

Edge

device

EVI link

EVI

Site network

Edge device

Site

network

Edge device

EVI link EVI link VLAN 10

VLAN 10

Site 1

Site 2

Site 3

Figure 3 Multiple EVI networks

Terminology

Edge device

An edge device performs typical Layer 2 learning and forwarding on the site-facing interfaces (internal

interfaces) and performs tunneling and routing on the transport-facing interfaces.

EVI network ID

An edge device can belong to multiple EVI networks. Each EVI network is uniquely identified by a

network ID.

EVI link

An EVI link is a bidirectional virtual Ethernet channel between a pair of edge devices in an EVI network.

EVI links are conveyed on EVI tunnels. Each EVI link is uniquely identified by a pair of source and

destination EVI tunnel IP addresses.

EVI tunnel

An EVI tunnel is a point-to-many automatic GRE tunnel that conveys EVI links for an EVI network. One EVI

tunnel can serve only one EVI network.

EVI neighbor

All edge devices in an EVI network are EVI neighbors to one other.

ENDP

EVI Neighbor Discovery Protocol uses the client/server model to dynamically discover sites and edge

devices, establish and maintain EVI links, and exchange network membership information in an EVI

network.

ENDS

An EVI neighbor discovery server maintains all neighbor information in an EVI network. An EVI network

can have up to two ENDSs.

Site 1

Site 2

Site 4

Site 5

EVI 1

VLANs 100-101

EVI 2

VLAN 4000

EVI 3

VLANs 50-80

Site 3

Andere Handbücher für S12500 Series

Inhaltsverzeichnis

Andere H3C Schalten Handbücher

H3C

H3C S5500-EI series Bedienungsanleitung

H3C

H3C S6300 Series Kurzanleitung

H3C

H3C S3100-52P Bedienungsanleitung

H3C

H3C S9500 Series Bedienungsanleitung

H3C

H3C S5150-EI Series Bedienungsanleitung

H3C

H3C S5120-SI Series Installationshandbuch

H3C

H3C S3610 Series Bedienungsanleitung

H3C

H3C H3C S7500E Series Bedienungsanleitung

H3C

H3C S10506 Bedienungs- und Wartungshandbuch

H3C

H3C S5130-28F-EI Bedienungsanleitung

H3C

H3C S7500E-XS Series Bedienungsanleitung

H3C

H3C H3C S7500E Series Bedienungsanleitung

H3C

H3C S7500 Series Bedienungsanleitung

H3C

H3C S12500 Series Bedienungsanleitung

H3C

H3C S1850V2-EI Series Bedienungsanleitung

H3C

H3C S5850-54QS Bedienungsanleitung

H3C

H3C S3100V2 Series Bedienungs- und Wartungshandbuch

H3C

H3C WX3000 Series Bedienungsanleitung

H3C

H3C s5820x series Bedienungsanleitung

H3C

H3C LS-5500-28C-PWR-SI-OVS Bedienungsanleitung

H3C

H3C S5500-28 C-EI-DC Bedienungsanleitung

H3C

H3C S5820V2-52Q Bedienungs- und Wartungshandbuch

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