Demand test descriptions and error codes - Avaya Support

PNC State-of-Health Indexes
PNC-DUP (PNC Duplication)
The Inter-PN and Inter-SN Indexes form the state of health vector, which is used to track and
compare the states of health of both PNCs. The fields making up the indexes are two digit
numbers separated by periods (.), with each field representing a different class of faults. The
fault class fields are arranged in order of decreasing importance from left to right. In other
words, each field in the index supersedes the following fields in determining which PNC is
healthiest. A fault class drives an interchange only when all of the higher priority fault classes
are equal. A zero entry indicates no faults in that class. Increasing numbers indicate
increasingly higher numbers of faults present in that class.
The Inter-PN Index contains six fields (XX.XX.XX.XX.XX.XX), and the Inter-SN Index has two
(XX.XX). The Inter-PN Index reports faults in connectivity between port networks and
supersedes the Inter-SN Index, which reports faults in connectivity between switch nodes. (The
Inter-SN Index is only meaningful for systems with a center stage switch having two switch
nodes, each of which is duplicated).
The meaning of each fault class field is given in Table 212: PNC State-of-Health Fault Classes.
A zero entry indicates that there are no such faults reported. Higher numbers indicate
increasing number of faults. All zeros indicates perfect state of health. Unless the PNCs are
locked, the active PNC’s state of health should always be equal to or better than the standby’s.
(Otherwise, the system would perform a spontaneous interchange.)
After a PNC-related alarm is cleared, the system performs a partial refresh of the standby PNC.
The corresponding fault class field is not updated to reflect the improved state of health until the
refresh is done. The state of health indexes will not agree with the current alarm status during
this period.
Table 212: PNC State-of-Health Fault Classes
Fault Class Priority Description MOs
FC_EAL 1 Number of PNs with EALs down EXP-PN
FC_INL 2 Number of PNs with LINL, RINL, or
EI-SNI neighbor link faults
3 Number of PNs with BFDL (Bearer Fault
Detection Link) faults
FC_HW 4 Number of PNs affected by hardware
faults in a link having an EI as an
endpoint (Endpoints can be determined
with list fiber-link.)
FC_BFD 1
FC_PER 5 Number of PNs affected by SNI peer link
faults for SNIs connected to EIs
FC_DS1 6 Number of PNs affected by DS1C facility
faults
EXP-PN,
SN-CONF
SYS-LINK
EXP-INTF,
SN-CONF,
FIBER-LK,
SNI-BD,
DS1C-BD
SNI-PEER
DS1FAC
Issue 5 May 2009 761