Command Reference Guide

3Com Router 5000 Family and Router 6000 Family isis mesh-group ● 189
Command Reference
isis mesh-group
Purpose 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.
Syntax isis mesh-group [ mesh-group-number | mesh-blocked ]
undo isis mesh-group
Parameters 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.
Default By default, the interface does not belong to any mesh group and floods LSP normally.
Example Add interface serial1/0/0 to mesh group 3.
[3Com -Serial1/0/0] isis mesh-group 3
View This command can be used in the following views:
■ Interface view
Description 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.
The interface joining a mesh group only floods the received LSP to the interfaces
beyond the local mesh group.
Be sure to provide some redundancy when adding an interface to a mesh group or
blocking it, for avoiding the effect on the normal flooding of the LSP due to link
failure.