Configuring LIM and LIM Port Redundancy
Configuring LIM port redundancy
Stinger® ADSL 48-Port Annex C LIM Guide
2-11
Enabling LIM port redundancy
Redundancy for a particular slot and port is controlled by the
sparing-mode
parameter in
the appropriate LIM profile.
The
sparing-mode
parameter appears in all LIM profiles, as in the following SDSL profile
for slot 2, port 6:
[in SDSL/{ shelf-1 slot-2 6 }]
name = 1:2:32
physical-address* = { shelf-1 slot-2 6 }
enabled = yes
sparing-mode = inactive
line-config = { 0 232 15 static { any-shelf any-slot 0 }
singlebaud 784000 2720+
Manual LIM port redundancy
You can invoke the redundancy function manually by setting the
sparing-mode
parameter
in the LIM profile to
manual
. The connection on the primary LIM is transferred to the spare
(secondary) LIM. To disable manual port redundancy, set the
sparing-mode
parameter to
inactive
.
If manual redundancy is currently in use, setting the parameter to
inactive
causes the spare
LIM port to become inactive again, terminating its connections and then reestablishing them
on the primary LIM port that was replaced.
For example, suppose a Stinger FS is equipped with an ADSL LIM in slot 1 and an SDSL LIM
in slot 4. Spare LIMs are located in slots 14 and 16 respectively. Port 2 fails on the ADSL LIM,
and port 6 fails on the SDSL LIM. To provide redundancy for these ports, proceed as follows:
1
Activate redundancy for failed port 2 in slot 1.
admin> read al-dmt {1 1 2}
admin> set sparing-mode = manual
admin> write
LOG notice, Shelf 1, Slot 8, Time: 11:58:49--
LIM 14 port 2 ACTIVATED as spare for LIM 1 Port 2
Parameter
Specifies
sparing-mode
Enables or disables port redundancy and specifies the mode. You can
enable two port-redundancy modes.
The default value,
inactive
, disables LIM port redundancy.
The
manual
setting deactivates the LIM port and then reestablishes the
connection on the same port of the spare LIM.
The
automatic
setting activates automatic redundancy for the port.
The error threshold parameters specified in the
Auto-LIM-Sparing-Config subprofile of the LIM-Sparing-Config
[slot
number]
profile are used.
