When a SIP PH transitions from the service selection state of serving
to the unavailable state and the mate SIP PH is in the unavailable
state, a critical alarm is reported.
Table 2-6, “Service Selection State Combinations” (2-34) illustrates
the allowed service selection state combinations for a processor group
with two SIP PHs.
Table 2-6 Service Selection State Combinations
SIP PH 0 SIP PH 1
SERVING NON-SERVING
NON-SERVING SERVING
UNAVAILABLE UNAVAILABLE
UNAVAILABLE SERVING
SERVING UNAVAILABLE
However, for a processor group with only one SIP PH, the allowed
service selection states are serving and unavailable.
Hardware View
Architecture
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2-34
Lucent Technologies 235-200-118
Issue 3.02B, March 2007
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