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IPSV-CTL (Ipserver Interface Control)
Issue 1 June 2005 1405
IPSV-CTL (Ipserver Interface Control)
S8700 | 8710 / S8500
The TN2312AP IPSI and TN2312BP circuit packs are duplicated in a high- or critical-reliability
system. As part of duplicated IPSIs, PKT-INTs, Archangels, and Tone-Clocks are also
duplicated. However, to simplify recovery algorithms, only one IPSI can be “active” in a given
PN. The one exception to this rule is the IPSI’s tone-detection module. Both IPSIs may have
active tone detectors.
Note:
Note: The TN2312BP IPSI is a replacement for the TN2312AP IPSI and can be used
anywhere a TN2312AP is used. The TN2312AP is not compatible with CMC1and
G650 media gateways.
During an IPSI interchange, the IPSI’s PKT-INTs, Archangels, and Tone-Clocks are temporarily
distributed between the two IPSIs. During stable operation, the active PKT-INT, Archangel, and
Tone-Clock must all reside on the same IPSI.
S8700 IP: In an S8700 IP-connect configuration, IPSI capabilities are provided by a single IPSI,
not shared by two IPSIs. All IPSI capabilities that are functioning are provided by a single IPSI in
an IP-connect configuration. This differs from multi-connect configurations in which the EAL can
be in an expansion interface (EI) circuit pack during a recovery operation. (S8700 IP-connect
configurations do not contain EI circuit packs.)
Each IPSI’s state of health (SOH) is based on the following elements in descending order of
priority:
Note:
Note: A low priority fault indicates a better state-of-health than a high priority fault. For
example, a clock fault on an IPSI is more severe that a PKTINT fault on an IPSI.
MO Name in
Alarm Log
Alarm
Level
Initial SAT Command to Run Full Name of MO
IPSV-CTL NA set ipserver-interface Ipserver Interface Control
Table 498: Fault classes and IPSI interchanges
Fault Class Circuit pack function that is monitored Priority
Clock Clocking signal for the TDM bus 1 (highest)
PKTINT Sending and receiving packet control messages 2
EAL Noting the state of the expansion archangel link (up or down) 3
Generation Generating tones 4 (lowest)