Symptom:
We are not able to install the call on the standby because while installing the call on we are not able to find the dynamic rule assigned for this call. In this case, the following messages are displayed on Standby chassis.
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[acsmgr 91899 error] [1/1/5780 <sessmgr:18> smgr_recovery.c:2625] [callid 0511d4e2] [context: SIGNAL, contextID: 4]  [software internal system syslog] Rule not found in acs manager instance while recovering dynamic rules (129), recovery mode (1),gr_from_old_chassis (0) index (30541)
[sessmgr 10396 error] [1/1/5780 <sessmgr:18> smgr_gr_utils.c:2224] [callid 0511d4e2] [context: <unknown>, contextID: 0]  [software internal system syslog] Sessmgr-18 Recover call from CRR failed for callid:0x511d4e2 reason=sessmgr_gr_ipv6addr_pre_alloc_complete FAILED

[acsmgr 91899error] [1/0/5783 <sessmgr:15> smgr_recovery.c:2625] [callid     042c6bed] [context:SIGNAL, contextID: 4]  [software internal system syslog] Rule not found in acs manager instance while recovering dynamic    rules (0), recovery mode (1),gr_from_old_chassis (0) index (12)
[sessmgr10396 error] [1/0/5783 <sessmgr:15> smgr_gr_utils.c:6349] [callid     042c6bed][context: <unknown>, contextID: 0]  [software internal system syslog] Sessmgr-15 Recover call from CRR failed for callid:0x42c6bed    reason=sessmgr_gr_install_crr_call_resource FAILED
===

We have similar DDTS CSCui97041, but it's for Active chassis. This DDTS CSCuq92070 is for standby chassis of ICSR.

Conditions:
ICSR