3Com 7757 Configuration Manual page 342

342 C 35: IS-IS C
HAPTER
Configuring Overload
Tag
Configuring to Discard
LSPs with Incorrect
Checksum
Configuring to Log Peer
Changes
Assigning an LSP
Refresh Time
ONFIGURATION
Table 275 Add an interface to a mesh group
Operation
Add an interface to a
mesh group
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 for the routers.
When the overload tag is set, other routers will not ask the router to forward
packets.
Table 276 Configure overload tag
Operation
Enter system view
Enter IS-IS view
Configure overload tag set-overload
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. You can use the
ignore-lsp-checksum-error command to configure IS-IS to discard an LSP with
incorrect checksum.
Table 277 Configure to discard LSPs with incorrect checksum
Operation
Enter system view
Enter IS-IS view
Configure to discard
LSPs with incorrect
checksum
With peer state logging enabled, IS-IS peer state changes are output to the
console terminal.
Table 278 Enable peer change logging
Operation
Enter system view
Enter IS-IS view
Enable peer change
logging
All LSPs are sent periodically to synchronize the LSPs in an area.
Command
isis
mesh-group { mesh-group-numbe
r | mesh-blocked }
Command
system-view
isis [ tag ]
Command
system-view
isis [ tag ]
ignore-lsp-checksum-error
Command
system-view
isis [ tag ]
log-peer-change
Description
Optional
By default, LSPs are flooded on
interfaces normally.
Description
-
Required
Optional
No overload tag is set by
default.
Description
-
Required
Optional
By default, LSP checksum error
is ignored.
Description
-
Required
Optional
By default, peer change
logging is disabled.