Avaya G250 Administration page 565

The next group of commands configures next hop list 1, which was included in the rules
configured above. Next hop list 1 sends packets that match the rule in which it is included to the
E1/T1 line (serial interface 4/1). If that interface is not available, the next hop list requires the
packet to be dropped (Null0). This is because the QoS on the Internet interface is not adequate
for voice packets. It would also be possible to include one or more backup interfaces in the next
hop list.
G350-001(super)# ip next-hop-list 1
G350-001(super-next hop list 1)#name "Voice-To_HQ"
Done!
G350-001(super-next hop list 1)#next-hop-interface 1 Serial 4/1
Done!
G350-001(super-next hop list 1)#next-hop-interface 2 Null0
Done!
G350-001(super-next hop list 1)#exit
G350-001(super)#
The next set of commands applies the PBR list to the voice VLAN (6).
G350-001(super)# interface Vlan 6
G350-001(super-if:Vlan 6)# ip pbr-group 801
Done!
G350-001(super-if:Vlan 6)# exit
G350-001(super)#
The next set of commands applies the PBR list to the Loopback interface. This is necessary to
ensure that voice packets generated by the G250/G350 itself are routed via the E1/T1 line. The
Loopback interface is a logical interface that is always up. Packets sent from the G250/G350,
such as signaling packets, are sent via the Loopback interface. In this example, applying PBR
list 801 to the Loopback interface ensures that signaling packets originating from voice traffic
are sent via the T1/E1 line.
G350-001(super)# interface Loopback 1
G350-001(super-if:Loopback 1)# ip pbr-group 801
Done!
G350-001(super-if:Loopback 1)# exit
G350-001(super)#
Application example
Issue 3 February 2007 565