H3C S7500 Series Ethernet Switches Operation Manual

Operation Manual – Routing Protocol
H3C S7500 Series Ethernet Switches Chapter 5 IS-IS Configuration
5-19
To do... Use the command... Remarks
Enter system view
system-view
—
Enter interface view
interface interface-type
interface-number
—
Add an interface to a
mesh group
isis mesh-group
{ mesh-group-number |
mesh-blocked }
Required
By default, LSPs are
flooded on interfaces
normally.
5.3.18 Configuring Overload Tag
A failure of a router in an IS-IS domain will cause errors in the routing of the whole
domain. To avoid this, you can configure the overload tag for the routers.
When the overload tag is set, other routers will not ask the router to forward packets.
Follow these steps to configure overload tag:
To do... Use the command... Remarks
Enter system view
system-view
—
Enter IS-IS view isis [ tag ] —
Configure overload tag
set-overload
Required
No overload tag is set by default.
5.3.19 Configuring to Discard LSPs with Incorrect Checksum
Checksum is performed on the LSPs received locally by IS-IS and compared with that
carried in the LSPs. By default, the LSP will not be discarded even if its checksum is
inconsistent with that calculated.
Follow these steps to configure IS-IS to discard LSPs with incorrect checksum:
To do... Use the command... Remarks
Enter system view
system-view
—
Enter IS-IS view isis [ tag ] —
Configure to discard LSPs
with incorrect checksum
ignore-lsp-checksum-er
ror
Required
By default, LSP checksum
error is ignored.