Verifying The Wan Configuration And Testing Connectivity; Backup Interfaces - Avaya G350 Administration

Configuring a WAN

Backup interfaces

Verifying the WAN configuration and testing connectivity

After configuring the new interface, you can perform the following tests to verify that the new interface is
operating correctly.
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Use the
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configuration. For more information about frame relay configuration, use the following
commands:
— show frame-relay fragment
— show frame-relay lmi
— show frame-relay map
— show frame-relay traffic
— show map-class frame-relay
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Use the
information about a specific interface, include the name of the interface as an argument. To
display information about the interface of a specific IP address, include the IP address as an
argument.
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Use the
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node is periodically pinged and checked if an answer was received. This checks host reachability
and network connectivity.
Backup interfaces
You can configure backup relations between a pair of any Layer 2 serial interfaces. A backup interface is
activated when the primary interface fails. The backup interface is deactivated when the primary interface
is restored. A PPP session, frame relay interface, frame relay sub-interface, or Fast Ethernet interface can
serve as a backup interface to any other serial interface on the same module, including interfaces on
different serial ports.
NOTE:
A frame relay interface in a primary or backup role overrides the role of its sub-interfaces.
Configurable activation and deactivation delays provide a damping effect on the backup interface pair.
This eliminates primary-to-backup switching in case of fluctuating underlying Layer 2 interfaces. You
can configure the following backup delays:
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Failure delay — The time in seconds between the primary interface going down and the backup
interface activation. Default = 0 seconds, maximum = 3600 seconds.
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Secondary Disable delay — The time in seconds between the primary interface restoration and
the backup interface deactivation. Default = 0 seconds, maximum = 3600 seconds. Both interfaces
are active during this time to enable a smooth transition for the routing protocols.
80
command to view the status of the controllers for E1/T1 interfaces.
show controllers
command to view information about all serial interfaces.
show interfaces Serial
command to view basic information about frame relay
show frame-relay pvc
command to display information about IP interfaces. To display
show ip interface
show running-config command to display the configuration running on the switch.
command to display the configuration loaded at startup.
show startup-config
command to send ICMP echo request packets to another node on the network. Each
ping
Administration of the Avaya G350 Media Gateway
June 2004