Checking The Configurations - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
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7.13.7 Checking the Configurations

After configuring IPv6 IS-IS route selection, run the following commands to verify that the
configurations are correct.
Procedure
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Issue 02 (2014-09-30)

1.

Run:
system-view
The system view is displayed.
2. Run:
isis [ process-id ]
The IS-IS view is displayed.
3. Run:
default-route-advertise [ always | match default | route-policy route-
policy-name ] [ cost cost ] [ tag tag ] [ level-1 | level-1-2 | level-2 ]
[ avoid-learning ]
IS-IS is configured to generate default routes.
Configure ATT bit 1-triggered default route generation mode.
1. Run:
system-view
The system view is displayed.
2. Run:
isis [ process-id ]
The IS-IS view is displayed.
3. Run the following command as required:
– To set the ATT bit in the LSPs sent by the Level-1-2 router, run the attached-bit
advertise { always | never } command.
– If the always parameter is specified, the ATT bit is set to 1. After receiving the
LSPs carrying the ATT bit 1, the Level-1 router generates a default route.
– If the never parameter is specified, the ATT bit is set to 0. After receiving the
LSPs carrying the ATT bit 0, the Level-1 router does not generate a default
route, which reduces the size of a routing table.
– To disable the Level-1 router from generating default routes even though it receives
the LSPs carrying ATT bit 1, run the attached-bit avoid-learning command.
Run the display isis route [ process-id | vpn-instance vpn-instance-name ] [ ipv6 ]
[ topology topology-name ] [ verbose | [ level-1 | level-2 ] | ipv6-address [ prefix-length ] ]
*
[ | count ] command to check IS-IS routing information.
Run the display isis lsdb [ { level-1 | level-2 } | verbose | { local | lsp-id | is-name symbolic-
*
name } ] [ process-id | vpn-instance vpn-instance-name ] command to check information
in the IS-IS LSDB.
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7 IS-IS Configuration
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