Server Alarms - Avaya Support

PNC-DUP (PNC Duplication)
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 307: 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 307: 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
FC_SNIL 7 Number of inter-switch-node fibers
affected by peer or neighbor link faults
FC_SNIHW 8 Number of interswitch-node fibers
affected by hardware faults
EXP-PN,
SN-CONF
SYS-LINK
EXP-INTF,
SN-CONF,
FIBER-LK,
SNI-BD,
DS1C-BD
SNI-PEER
DS1FAC
SNI-PEER
SN-CONF,
SNI-BD,
FIBER-LK
1. BFDLs only exist in Port networks that have an IPSI. Port networks that do not have an IPSI will
have the EI as Archangel and no BFDL faults.
In multi-node CSS configurations FC_DS1 is considered less critical that FC_SNINL since
DS1C constraints affect only one PN and indicate restricted bandwidth. However FC_SNINL
Communication Manager Release 5.0 Issue 4 January 2008 1123