Command Manual – IPv4 Routing
H3C S7500E Series Ethernet Switches Chapter 4 IS-IS Configuration Commands
4-35
and then use the isis enable command to enable IS-IS on each interface that needs to
run the IS-IS process.
Related commands: isis, network-entity.
Examples
# Create IS-IS routing process 1, and enable the IS-IS routing process on
VLAN-interface 10.
<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] network-entity 10.0001.1010.1020.1030.00
[Sysname-isis-1] quit
[Sysname] interface vlan-interface 10
[Sysname-Vlan-interface10] isis enable 1
4.1.31 isis mesh-group
Syntax
isis mesh-group { mesh-group-number | mesh-blocked }
undo isis mesh-group
View
Interface view
Parameters
mesh-group-number: Specifies a mesh group number, ranging from 1 to 4294967295.
mesh-blocked: Blocks the interface from flooding LSPs to make it send LSPs only
after receiving requests.
Description
Use the isis mesh-group command to add the interface into a specified mesh group.
Use the undo isis mesh-group command to delete the interface from a mesh group.
An interface is not in any mesh group by default.
For an interface not in a mesh group, it follows the normal process to flood the received
LSPs to other interfaces. For the NBMA network with high connectivity and multiple
point-to-point links, this will cause repeated LSP flooding and bandwidth waste.
After an interface is added to a mesh group, it will only flood a received LSP to
interfaces not belonging to the same mesh group.
When you add an interface to a mesh group or block the interface, make sure to retain
some redundancy so that a link failure will not affect the normal LSP packet flooding.
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