Huawei Quidway NetEngine80E Configuration Manual page 65

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
To address this problem, deactivate the network segment route that corresponds to the L3VE
sub-interface of the secondary PW by running the direct-route ipv6 track pw-state deactive-
standby command on the L3VE sub-interface on AGG1 connecting to CSG2. When PW4 is the
secondary PW, AGG1 cannot generate the network segment route from CSG2 to its L3VE sub-
interface. In this situation, AGG1 selects the BGP VPNv6 route sent by AGG2. If CSG1 forwards
data to AGG1 through the primary PW (PW1), AGG1 forwards the data directly to AGG2.
AGG2 forwards the data to CSG2 through PW3. In this situation, no black-hole route exists.
If PW1 fails, PW2 becomes the primary PW of CSG1. If CSG1 needs to communicate with
CSG2, CSG1 forwards data to AGG2 through PW2. AGG2 then forwards the data to CSG2
through PW3. CSG2 forwards data destined for CSG1 to AGG2 through PW3. AGG2 forwards
the data to CSG1 through the primary PW (PW2). In this situation, data can be forwarded
between CSG1 and CSG2.
Pre-configuration Tasks
Before configuring a device to deactivate the IPv6 network segment route that corresponds to
an L3VE sub-interface, configure link-layer protocol parameters and IPv6 addresses for
interfaces to ensure that the link layer protocol of each interface is Up.
Data Preparation
None
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.
Step 5 Run:
interface virtual-ethernet interface-number.subinterface-number
A VE sub-interface is created and the VE sub-interface view is displayed.
Step 6 Run:
Issue 02 (2014-09-30)
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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