Lucent Technologies Stinger, Administration Manual

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Monitoring Interfaces on LIMs and Trunk Modules
Monitoring LIM and LIM port redundancy
Stinger® Administration Guide 5-17
Monitoring LIM and LIM port redundancy
You can configure a redundant line interface module (LIM) that you can manually
activate—or configure a Stinger unit to automatically activate—when a previously
active LIM or LIM port goes offline.
A fast-restore capability enables Stinger units with redundant control modules to
restore the data path of cross-connections within about 10 seconds following a
failover of the primary control module. The fast-restore operation restores the data
path of cross-connections (virtual circuits that use
atm-circuit encapsulation) in the
application-specific integrated circuit (ASIC) switching fabric while TAOS call-control
mechanisms are reestablishing connections.
Terminating connections (virtual circuits that use atm encapsulation), OAM data
paths, and soft permanent virtual circuits (SPVCs) are not affected by the fast-restore
operation. Those connections are reestablished in the usual time frame via TAOS call
control.
For configuration instructions for redundant LIMs and ports, see the module guide
for your particular device
.
To determine the status of LIMs and ports configured for redundancy, use the
following profiles and commands:
lim-sparing-status profile and numbered subprofiles, which indicate
redundancy status on the Stinger unit and the current configuration
Individual LIM line status profiles, which indicate port redundancy status for the
selected port and information about the spare LIM
rearslotshow command
splimports command
Overview of port redundancy parameters
The status profile for each interface indicates whether redundancy is enabled and
provides other useful information about the status of the redundancy function on a
LIM (see “Using profiles to monitor LIM and trunk interfaces” on page 5-3).
Following is an overview of the parameters that report redundancy information.
Parameter Specifies
spare-physical-
address Shelf, slot, and port number of spare LIM.
sparing-state State of the redundancy function. If redundancy is not
enabled,
sparing-none is the value. If redundancy is
enabled and the LIM slot contains a primary LIM, the value
can be
primary-active or primary-inactive . If redundancy
is enabled and the LIM slot contains the secondary LIM, the
value can be
secondary-active or secondary-inactive .
sparing-change-
reason How redundancy is activated. Valid values are inactive ,
manual , and automatic .
sparing-change-
time Time that the last change in redundancy state occurred.