Compatible Systems 5.4 manual WAN Link Protocols 157, Backup Port, Timers, Allow Dial Out

Chapter 10 - WAN Link Protocols 157

router stops receiving Frame Relay switch maintenance packets, or if all user PVCs go down.

•If None is selected, failover mode on the port will not be used.

•If Primary is selected, the router will monitor the status of the line connected to the port. If problems are detected on the line, traffic to this port will be diverted to the port selected with the Backup Port pull-down menu as described below.

ϖNote: This pull-down menu will be disabled and will show “Backup” on a port which has been selected as a backup for a Primary port.

Backup Port

When the port has been set as a Primary failover port using the Failover Type pulldown menu, this pulldown allows a backup port to be set. If the line on the primary port goes down, traffic will be diverted to the designated backup port.

Once a port has been selected as a backup port for one primary it cannot be used as a backup for another.

ϖNote: This pull-down menu will be disabled, renamed to “Primary Port,” and will show the Primary port’s name on a port which has been selected to be a backup.

Timers

This button brings up the Failover Timers screen, which controls the amount of time before traffic is diverted from the Primary to a backup port when a Primary’s line goes down, and the amount of time before traffic is diverted back to the Primary port when its line comes back up. The screen is described later in this chapter.

Allow Dial Out

This checkbox tells the router whether traffic forwarded from other interfaces on this router will cause an on-demand connection to be established on this interface. This checkbox can only be set if the Link Type is On Demand PPP Link.

•If checked, then incoming packets from another interface on this router whose destination is via this port will initiate a dialing sequence if the link is not already connected. If the link is already connected, the packets will simply be forwarded.

•If unchecked, then incoming packets from another interface on this router will be dropped if the link is not already connected.