Switch 7700 Command reference Guide, v2.0

176 CHAPTER 5: USING ROUTING PROTOCOL COMMANDS
Parameter
mesh_group_number: Specify the mesh group number, ranging from 1 to
4294967295.
mesh-blocked: Configure to block 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 delete 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.
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, avoiding the affect to the normal flooding of the LSP due to link
failure.
Example
Add interface Vlan-interface 1 to mesh group 3.
[SW7700-Vlan-interface1]isis mesh-group 3
isis timer csnp Syntax
isis timer csnp seconds [ level-1 | level-2 ]
undo isis timer csnp [ level-1 | level-2 ]
View
VLAN interface view
Parameter
seconds: Specify the CSNP packet interval on the broadcast network, ranging
from 1 to 65535 and measured in seconds. By default, the value is 10 seconds.
level-1: Specify the Level-1 CSNP packet interval.
level-2: Specify the Level-2 CSNP packet interval.
Description
■ Use the isis timer csnp command to configure the interval of sending CSNP
packets on the broadcast network.