Configuring Arp Direct Route Advertisement; Overview; Configuration Procedure - HP FlexNetwork MSR2003 Configuration Manual

Configuring ARP direct route
advertisement

Overview

The ARP direct route advertisement feature advertises host routes instead of advertising the network
route. This feature is typically configured on PE-aggs to advertise host routes to the connected PEs
in the L3VPN.
Figure 10 shows a typical application scenario where the PE in the L3VPN has ECMP routes
destined to a base station in the L2VPN. Traffic from the PE in the L3VPN to the base station can be
load shared by PE-agg 1 and PE-agg 2. If PE-agg 1 fails, the PE uses the host route through PE-agg
2 to forward traffic.
Figure 10 Typical application

Configuration procedure

Step
1. Enter system view.
2. Create an L3VE
interface and enter its
view.
3. Enable the ARP direct
route advertisement
feature.
Command
system-view
interface ve-l3vpn
interface-number
arp route-direct advertise
23
Remarks
N/A
By default, no L3VE interface exists.
For more information about this
command, see MPLS Command
Reference.
By default, the ARP direct route
advertisement feature is disabled.