Avaya G430 Manual page 264

WAN interfaces
9. Enter the context of the interface which the Dialer is to back up, and use the backup
10. From the general context, use the ip default-gateway dialer command to
Modem dial backup interactions with other features
Optimal modem dial backup configuration is a complex undertaking, dependent on a large
number of factors. For an extensive discussion of network design, capacity planning, routing
configuration, device configuration, and security considerations, see Application Note - VoIP
Network Resiliency. Device and network configuration features that need to be taken into
account include:
• The backup interface command allows you to designate the Dialer interface as the
backup to an existing WAN interface on the Branch Gateway. When the Branch Gateway
reports the primary WAN interface down for a specified period of time, the Dialer interface
264 Administering Avaya G430 Branch Gateway
LCP Starting
IPCP Starting
Last dialed string:
Dial strings:
1: 5555555
2: 1234567
Dialing order is sequential
Persistent initial delay 5 sec
Wait 45 sec for IPCP
Weighted Fair VoIP queueing mode
Last input never, Last output never
Last clearing of 'show interface' counters never
5 minute input rate 0 bits/sec, 0 packets/sec
This command shows the interface status, including a summary of its definitions
and settings. The status also tells you whether the interface is up and the dialup
succeeded. In the example status, the interface is down and inactive.
interface command to configure the Dialer interface as the backup interface.
For example:
G430-001(if:Tunnel 1)# backup interface dialer 1
Done!
Interface Dialer 1 is now selected as the backup interface to the selected interface.
The Dialer interface is activated in the event of a failure of the primary interface.
Upon activation, the Dialer interface dials the number associated with the first dialer
string.
configure backup routing.
The following example configures a simple low priority via static route:
Gxxx-001(super)# ip default-gateway dialer 1 1 low
Done!
Note:
Define multiple routes to ensure that traffic reaches the Dialer interface.
Comments? infodev@avaya.com
October 2013