Synchronizing Process - Avaya Cajun P882 User Manual

Synchronizing Process

Supervisor
Module
Redundancy
Status
Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, v5.3.1
The Active supervisor performs TFTP "puts" to the Standby
supervisor to synchronize the Active and standby images and
configurations. This process takes place over an internal subnet and
VLAN. From the Active supervisor's perspective this operation is the
same as a TFTP configuration file upload.
During synchronization of the Active and standby, the boot code,
app1 and app2 images will be synchronized. The following general
rule is used when synchronizing images:
If the standby's image version is lower than the Active's
image version, the Active will overwrite the app code of the
standby.
If the standby's image version is the same as the Active's
image and the sizes and checksums match, the Active will
not attempt to synchronize the images.
If the standby's image version is higher than the Active's
image, the Active will not attempt to synchronize the images
since the Active's image is lower than the standby's.
Once the standby and Active's images and Boot code have been
synchronized, the Active supervisor will then do a TFTP put of the
startup.txt and the.int files (critical files for a fast failover, e.g.,
spanning tree map of all blocked ports).
Once this step is done, and the standby supervisor is reset, the
synchronization is complete.
The Active supervisor sends a health report message periodically to
the standby (redundant) supervisor. If the standby supervisor is
enabled, it responds with a health report reply.
Health Reports Sent - Displays the number of health
reports sent.
Health Reports Received - Displays the number of health
reports received.
Health Reports Timeouts - Displays the number of health
reports timeouts.
Health Reports Missed - Displays the number of health
reports missed.
Click REFRESH to reset all CPU redundancy statistics.
Configuring Redundancy Options
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