DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Commands
8-292status pnc
8
State of
Health On a system with duplica ted PNC, the state of health of each PNC. For
the standby PNC, service effec ts mentioned below are those that would
occur if that PNC were to become ac tive via an interchange.
Functional: the indicated PNC has no servic e disrupting alarms ag ainst
it. The state of health vector is all zeros, and c all setup on the standby
PNC matches that of the active.
Partially functional: the health of the PNC is less than perfec t. The
source and severity of the p roblem is indicated by the state of health
vector (Inter-PN and Inter-SN Indexes). Whenever the standb y’s state of
health is partially functional, d uplicated c all setup on the standb y
probably do es not match that on the active.
Not functional: Expansion Archang el Links to all EPNs are down on this
PNC. No service is possible to any EPNs via this PNC.
Inter PN
Index,
Inter SN
Index
The Inter-PN and Inter-SN Indexes form the state of health vector,
which is used to track a nd compare the states of heal th of both PNCs.
The fields making up the ind exes are two digit numb ers separated by
periods (.), with each fiel d representing a d ifferent class of faults. The
fault class fields are arrang ed in order of dec reasing importanc e from
left to right. In other words, eac h field in the index sup ersedes the
following fields in dete rmining which PNC is healthiest. The Inter-PN
Inde x con tain s five field s (XX.XX. XX.XX.XX), a nd t he Int er-SN I ndex has
two (XX.XX). The Inter-PN Index reports faults in connec tivity between
port networks and supersed es the Inter-SN Index, which reports faults
in connectivity between switc h nodes. (The Inter-SN Index is only
meaningful for systems with a center stag e switch having 2 switc h
nodes, each of which is d uplicated).
The meaning of each fault class fiel d is given in Table 8-14 below. A
zero entry indicates that there are no suc h faults reported. Higher
numbers indicate inc reasing number of faults. All zer os indicates
perfect state of health. Unless the PNCs are loc ked, the active PNC’s
state of health should always be eq ual to or better than the standb y’s.
(Otherwise, the system would perform a sp ontaneous interchange.)
After a PNC-related alarm is cleared, the syste m performs a partial
refresh of the standby PNC. The correspond ing fault class field is not
updated to reflect the imp roved state of health until the refresh is done.
The state of health indexes will not agree with the c urrent alarm status
during this period.