H3C S6300 Series Manuale utente

H3C S6300 Switch Series

EVB Configuration Guide

Hangzhou H3C Technologies Co., Ltd.

http://www.h3c.com

Software version: Release 2418P01

Document version: 6W100-20150717

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

This configuration guide describes the background, fundamentals, and configuration of EVB.

This preface includes the following topics about the documentation:

•Audience.

•Conventions.

•About the H3C S6300 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 S6300 switch series.

Conventions

This section describes the conventions used in the documentation.

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.

[ 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 S6300 documentation set

The H3C S6300 documentation set includes the following categories of documents:

Cate

Documents

Pur

oses

Hardware

specifications and

installation

Compliance and safety manual

CE DOC

Provides regulatory information and the safety

instructions that must be followed during

installation.

Installation quick start Provides basic installation instructions.

Installation guide Provides a complete guide to hardware installation

and hardware specifications.

Fan assemblies installation

manual

Describes the appearance, specifications, and

installation and removal of hot-swappable fan

assemblies.

Power modules user manual

Describes the appearance, specifications, and

installation and removal of hot-swappable power

modules.

Pluggable transceiver modules

installation guide

Guides you through installing SFP/SFP+/QSFP+

transceiver modules.

Pluggable modules manual

Describes the hot-swappable modules available for

the H3C switches, 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

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 following links to obtain different categories of product documentation:

[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.

[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 info@h3c.com.

We appreciate your comments.

Contents

Configuring EVB··························································································································································· 1

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

Basic concepts ··························································································································································2

EVB working mechanism ·········································································································································2

Protocols and standards ··········································································································································3

EVB configuration task list ················································································································································3

Enabling EVB ·····································································································································································3

Configuring LLDP·······························································································································································4

Specifying a default VSI manager ··································································································································5

Configuring VDP negotiation parameters·······················································································································5

Configuring an S-channel·················································································································································6

Creating an S-channel ·············································································································································6

Configuring an S-channel interface or S-channel aggregate interface ······························································7

Configuring the RR mode for an S-channel ···········································································································7

Configuring MAC address learning for an S-channel··························································································8

Configuring a VSI interface or VSI aggregate interface·······························································································8

Creating a VSI interface or VSI aggregate interface····························································································8

Configuring VSI filters ··············································································································································9

Activating a VSI interface or VSI aggregate interface ······················································································ 10

Displaying and maintaining EVB·································································································································· 11

EVB configuration example··········································································································································· 12

Index ···········································································································································································16

Configuring EVB

Overview

Edge Virtual Bridging (EVB) allows virtual machines (VMs) on a physical server to obtain bridge relay

services through a common bridge port. It enables coordinated configuration and management of

bridge services for VMs.

EVB requires a license to run on your device. For information about obtaining a license, see

Fundamentals Configuration Guide.

Data center virtualization includes network virtualization, storage virtualization, and server virtualization.

Server virtualization uses specific virtualization software such as VMware to create VMs on a single

physical server. Each VM operates independently and has its own operating system, applications, and

virtual hardware environments as shown in Figure 1.

Figure 1 Server virtualization

VMs on a physical server communicate with each other or with the outside network through a Virtual

Ethernet Bridge (VEB). VEBs are implemented through software or hardware such as NICs. Both

implementation methods have the following limitations:

•Lack of traffic monitoring capabilities such as packets statistics, traffic mirroring, and NetStream.

•Lack of network policy enforcement capabilities, such as QoS.

•Lack of management scalability, especially in unified deployment of the internal server network and

the external network.

EVB solves these limitations. It uses a physical switch (called EVB bridge) to switch traffic for VMs on a

directly connected physical server (called EVB station). EVB implements traffic monitoring, network policy

enforcement, and unified network deployment and management for VMs.

Basic concepts

Figure 2 shows the components on the EVB station and EVB bridge.

Figure 2 EVB architecture

•Edge Relay—An ER transfers packets between one URP and one or more DRPs. An ER has one or

more DRPs and one URP. Both URP and DRPs are called ER ports. An EVB station can have multiple

ERs.

•S-channel—A point-to-point S-VLAN established between a Port-mapping S-VLAN component in

an EVB station and a Port-mapping S-VLAN component in an EVB bridge. An S-channel

corresponds to the URP of an ER. On an EVB bridge, the end point of an S-channel is known as an

S-channel interface. An S-channel is identified by the S-VLAN Identifier (SVID) and the S-channel

Identifier (SCID), and the two values together are called an (SCID, SVID) pair.

•Virtual Station Interface—A VSI is a port on a VM that directly connects to the DRP of an ER. A VSI

is associated with a logical entity called VSI instance, which is identified by the VSI Instance

Identifier (VSIID). A VSI is associated with a virtual interface called VSI interface on the EVB bridge

port to implement VM traffic management and policy configuration. A VSI interface can be

considered as a subinterface of an S-channel.

•Reflective Relay—A RR is an operation mode in which a received frame on a port that supports this

function can be forwarded out of the same port. The EVB bridge uses this mode to forward traffic

among VMs on an EVB station, as shown in Figure 2.

EVB working mechanism

An EVB station and an EVB bridge go through the following steps to implement VM traffic management:

1. Use the S-channel Discovery and Configuration Protocol (CDCP) to establish an S-channel.

CDCP is used to configure S-channels between stations and bridges. When a station creates or

deletes an S-channel, CDCP sends a CDCP TLV in an LLDP packet that is addressed using the

Nearest non-TPMR Bridge address to the bridge. The bridge creates or deletes the S-channel.

2. Exchange EVB TLVs through LLDP to negotiate EVB capabilities for the S-channel, such as RR, ECP

parameters, and VDP parameters.

3. Use the VSI Discovery and Configuration Protocol (VDP) to associate the VSIs of VMs with the

bridge port.

The bridge uses the VSI interfaces to manage traffic for VMs.

VDP manages the association between a VSI and a station-facing bridge port (SBP) on a bridge.

VDP uses the Edge Control Protocol (ECP) to carry VDP TLVs. A VDP TLV comprises the VSIID, VSI

type, and VSI version.

When a station creates a VM, it sends a VDP pre-associate, pre-associate with resource

reservation, or associate packet to the bridge. The bridge sends the request to a VSI manager. The

VSI manager notifies the bridge to create a VSI interface and apply policies.

When a station shuts down a VM, it sends a VDP de-associate packet to the bridge. The bridge

sends the request to the VSI manager. The VSI manager notifies the bridge to delete the VSI

interface.

Protocols and standards

•IEEE P802.1Qbg/D2.2, Draft Standard for Local and Metropolitan Area Networks—MAC Bridges

and Virtual Bridged Local Area Networks - Amendment XX: Edge Virtual Bridging

EVB configuration task list

This document only describes EVB bridge configuration. For information about EVB station configuration,

see the station manual.

Tasks at a

lance

Enabling EVB

Configuring LLDP

(Optional.) Specifying a default VSI manager

(Optional.) Configuring VDP negotiation parameters

(Optional.) Configuring an S-channel:

•Creating an S-channel

•Configuring an S-channel interface or S-channel aggregate interface

•Configuring the RR mode for an S-channel

•Configuring MAC address learning for an S-channel

(Optional.) Configuring a VSI interface or VSI aggregate interface:

•Creating a VSI interface or VSI aggregate interface

•Configuring VSI filters

•Activating a VSI interface or VSI aggregate interface

Enabling EVB

Perform this task to enable EVB on an interface that directly connects to a station. After that, you must

configure the interface to operate in trunk mode. Otherwise, EVB does not work because VSI filter

configuration (see "Configuring VSI filters") does not take effect.

After EVB is enabled on an interface, the device cannot perform Layer 3 forwarding to the data received

on the interface.

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