Checking The Configurations - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
Context
By default, the 6PE device applies for a label for each 6PE route. When a large number of 6PE
routes need to be sent, a large number of labels are required. This greatly wastes label resources
and causes IPv6 routes unable to be advertised due to the shortage of label resources.
After 6PE routes sharing the explicit null label is enabled, all 6PE routes to be sent to the same
6PE peer share the explicit null label 2.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
bgp { as-number-plain | as-number-dot }
The BGP view is displayed.
Step 3 Run:
ipv6-family unicast
The BGP-IPv6 unicast address family view is displayed.
Step 4 Run:
apply-label explicit-null
All 6PE routes to be sent to the same 6PE peer share the explicit null label.
If you run this command after a 6PE peer relationship is established, temporary packet loss
occurs.
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9.13.4 Checking the Configurations

After BGP4+ IPv6 Provider Edge (6PE) is configured, you can check BGP4+ 6PE peer
information.
Prerequisites
BGP4+ 6PE has been configured.
Procedure
l
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Example
Run the display bgp ipv6 peer [ verbose ] command on a PE. The command output shows the
BGP4+ peer relationship between the PE and a CE and the 6PE peer relationship between the
PE and the peer PE.
Issue 02 (2014-09-30)
Run the display bgp ipv6 peer [ verbose ] command to check detailed information about
BGP4+ peers.
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