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07-三层技术-IP路由配置指导

目录

17-MTR配置

本章节下载： 17-MTR配置  (117.13 KB)

docurl=/cn/Service/Document_Software/Document_Center/Routers/Catalog/CR/CR16000/Configure/Operation_Manual/H3C_CR16000_CG-R6135-6W102/07/201806/1085198_30005_0.htm

17-MTR配置

目  录

1 MTR··············································································································································· 1-1

1.1 MTR概述································································································································ 1-1

1.1.1 MTR简介······················································································································ 1-1

1.1.2 MTR工作机制················································································································ 1-1

1.1.3 MTR支持的应用············································································································· 1-1

1.2 配置MTR································································································································ 1-1

1.3 MTR显示和维护······················································································································ 1-2

 

1 MTR

1.1  MTR概述

1.1.1  MTR简介

MTR（Multi-Topology Routing，多拓扑路由）是指将一个物理拓扑划分成多个逻辑的拓扑，这些逻辑的拓扑可能是交叉或者重叠的。不同拓扑运行各自的路由计算，实现网络的互通。

例如，IS-IS MTR就是指在一个IS-IS自治域内运行多个独立的IP拓扑，例如IPv4拓扑和IPv6拓扑，而不是将它们视为一个集成的单一拓扑。这有利于IS-IS在路由计算中根据实际组网情况来单独考虑IPv4和IPv6网络。

1.1.2  MTR工作机制

图1-1 MTR工作机制

 

如图1-1所示，可以根据需要对全局拓扑进行划分，分为多个子拓扑，这样不同的流量就可以走不同的拓扑。例如，语音流可以走子拓扑A，视频流可以走子拓扑B。

对于子拓扑A而言，Router B并不存在；而对于子拓扑B而言，它认为Router A和Router D之间，以及Router B和Router C之间并没有可用的链路相连。每一个单独的拓扑都根据路由协议计算出自己的路由，属于本拓扑的流量则根据本拓扑的路由表进行转发。

1.1.1  MTR支持的应用

·     IS-IS MTR：详细情况请参见“三层技术-IP路由配置指导”中的“IS-IS”和“IPv6 IS-IS”。

·     静态路由支持MTR：详细情况请参见“三层技术-IP路由配置指导”中的“静态路由”。

1.2  配置MTR

表1-1 配置MTR

操作

命令

说明

进入系统视图

system-view

-

进入拓扑地址族视图

address-family ipv4

-

创建拓扑，并进入拓扑视图

multiple-topology topology-name

必选

缺省情况下，没有创建任何拓扑

配置拓扑的访问控制列表号

acl acl-number

必选

配置拓扑支持的最大路由数

routing-table limit number { warn-threshold | simply-alert }

可选

缺省情况下，拓扑支持的最大路由数为1574912

退回系统视图

quit

-

进入接口视图

interface interface-type interface-number

-

将接口与指定拓扑进行关联

multiple-topology topology-name enable

必选

缺省情况下，接口不关联到任何拓扑

 

1.3  MTR显示和维护

在完成上述配置后，在任意视图下执行display命令可以显示配置后MTR的运行情况，用户可以通过查看显示信息验证配置的效果。

表1-2 MTR显示和维护

操作

命令

显示拓扑信息

display multiple-topology [ multiple-topology-name ] [ | { begin | exclude | include } regular-expression ]

 

不同款型规格的资料略有差异, 详细信息请向具体销售和400咨询。H3C保留在没有任何通知或提示的情况下对资料内容进行修改的权利!

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