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A case of when USG2130 V1R5 two-node cluster hot backup changeover business is break off

Publication Date:  2012-09-26 Views:  112 Downloads:  0

Issue Description

A site set USG2130 two-node cluster hot backup,but in primary/secondary switch found when host is up,business will break off for a well,that not accord with customer expectation

Alarm Information


Handling Process

Through investigation,we found USG2130 host set preemption time is 0,change to 20s,fault solved
As USG2130 primary/secondary switch need 16s,so if primary usg2130 preemption time change to 0,will caused backup time not enough,results in business break off。 So we must configure preemption delay,R&D suggest configure preemption time as 20s

Root Cause

During two-node cluster hot backup,after host occupy back,it not required secondary work dialog information,restart dialog will lose some packages