Huawei Quidway NetEngine80E Configuration Manual page 52

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
After you configure a cost for an IPv6 direct route and allow the direct route to restore its default
cost 0 after a delay, when the L3VE interface on AGG1 goes from Down to Up, the cost of the
direct route between the CSG and AGG1 is modified to the configured cost. In this case, RSGs
do not select routes advertised by AGG1 and downstream traffic still travels along LinkB. After
the configured delay expires, the cost of the direct route to the CSG is restored to the default
value 0. Then, RSGs select routes advertised by AGG1 and downstream traffic is switched over
to LinkA. At this time, AGG1 has learned the MAC addresses of the base stations, and
downstream traffic loss will be reduced.
Pre-configuration Tasks
Before you configure an IPv6 direct route to respond to L3VE interface status changes after a
delay, complete the following task:
l
Data Preparation
To configure an IPv6 direct route to respond to L3VE interface status changes after a delay, you
need the following data.
No.
1
2
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface virtual-ethernet interface-number
A VE interface is created and the VE interface view is displayed.
Step 3 Run:
ve-group ve-group-id l3-access
The VE interface is configured as an L3VE interface and bound to a VE group.
Step 4 Run:
quit
Return to the system view.
Issue 02 (2014-09-30)
Configuring link-layer protocol parameters and IPv6 addresses for interfaces to ensure that
the link layer protocol of each interface is Up
Data
Cost of the L3VE interface's direct route to the CSG
Delay before the direct route cost is restored to the default value 0
NOTE
The L2VPN can access the L3VPN only if the L2VE and L3VE interfaces are bound to the same VE group
and reside on the same board.
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1 IP Routing Basic Configuration
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