H3C S9500 Series Operation Manual page 295

Operation Manual – Routing Protocol
H3C S9500 Series Routing Switches
Table 5-26 Set the mesh group of the interface
Add an interface to a mesh group
Remove the interface from a mesh
group
By default, the LSP is flooded normally from the interface. When configured with the
mesh-blocked keyword, it will not flood the LSP to other interfaces.
Thus the IS-IS configuration tasks on the interface are finished. The following sections
discuss how to configure other parameters of IS-IS.
5.2.18 Setting Overload Flag Bit
Sometimes, the router in the IS-IS domain may encounter some problems in operation
thus errors may occur in the whole routing area. In order to avoid this problem, you can
set the overload flag bit for this router.
When the overload threshold is set, other routers should not send this router the
packets which should be forwarded by it.
Perform the following configurations in IS-IS view.
Table 5-27 Set overload flag bit
Set overload flag bit
Remove the overload flag bit
By default, no over load bit is set.
5.2.19 Setting to Discard the LSPs with Checksum Errors
After receiving an LSP packet, the local IS-IS will calculate its checksum and compares
the result with the checksum in the LSP packet. This process is the checksum
authentication over the received LSP. By default, even when the checksum in the
packet is not consistent with the calculated result, the LSP packet is not discarded.
However,
ignore-lsp-checksum-error command, the LSP packet will be discarded if the
checksum error is found.
Perform the following configuration in IS-IS view.
Operation
Operation
when not ignoring
Chapter 5 Integrated IS-IS Configuration
isis mesh-group { mesh-group-number |
mesh-blocked }
undo isis mesh-group
set-overload
undo set-overload
LSP checksum
5-19
Command
Command
error is set with the