Cabletron Systems FRM User Manual - page 87
Configuring Frame Relay
7-21
Primary/Secondary Name
identifies each end of the connection to the console operator. The software does not
use this information.
Primary/Secondary DLCI
is a logical connection identifier for each end of the PVC.
The DLCIs are defined here. If rate control (CIR, B
C
, B
E
) will be enforced,
be sure to configure those parameters in the
frame relay Port record
.
Primary/Secondary RLP
is the RLP at each end of the internal connection.
Primary/Secondary Port
is the port at each end of the internal connection.
Configuring Frame Relay Backup Groups
A Frame Relay Backup Group is one or more DLCIs (on the same RLP) that can act
as a backup for one or more "primary" DLCIs (also on the same RLP). If a node
detects a failure in a primary DLCI connection, the software will search the backup
group configured for the primary DLCI, and will select the first available DLCI in that
group as a backup. The backup will become operational and will remain in that state
until the primary becomes active again. If the backup fails while in use, the software
will check the status of the primary, then (if necessary) search the primary's backup
group for another backup.
Any sessions in progress when a primary DLCI goes down will not be
transferred directly to the backup DLCI, but will be reset, then established
on the backup.
To review existing backup groups, press
[A]
at the Frame Relay Backup Groups Con-
figuration Menu (or
[A], [E], [A]
from the Main Menu).
To configure a backup group, press
[B]
at the Frame Relay Backup Groups Configu-
ration Menu. When prompted, enter a
Frame Relay Backup Group Number
:
1–255
. (The
default is
1
.)