Command Reference Guide

3Com Router 3000 Ethernet Family

Chapter 4 Integrated IS-IS Configuration Commands

3Com Corporation

4-21

 Note:

So far, a router can enable the IS-IS process on 255 interfaces at most, including logic

interfaces such as subinterfaces.

Example

# Create an IS-IS routing process named "huawei", and activate this routing process on

interface serial1/0/0.

[3Com ] isis huawei

[3Com -isis] network-entity 10.0001.1010.1020.1030.00

[3Com -isis] quit

[3Com ] interface serial1/0/0

[3Com -serial1/0/0] isis enable huawei

4.1.24 isis mesh-group

Syntax

isis mesh-group [ mesh-group-number | mesh-blocked ]

undo isis mesh-group

View

Interface view

Parameter

mesh-group-number: Specifies the mesh group number, ranging from 1 to

4294967295.

mesh-blocked: Blocks a specified interface, so that it will not flood the received LSP to

other interfaces.

Description

Use the isis mesh-group command to add an interface to a specified mesh group.

Use the undo isis mesh-group command to cancel this interface from the mesh

group.

By default, the interface does not belong to any mesh group and floods LSP normally.

The interface beyond the mesh group floods the received LSP to other interfaces,

following the normal procedure. This processing method applied to an NBMA network

with higher connectivity and several point-to-point links will cause repeated LSP

flooding and waste bandwidth.