Exp-Pn (Expansion Port Network) - Avaya S8700 Maintenance Manual

For multi-connect configurations

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EXP-PN (Expansion Port Network)

MO's Name (in

Investigate errors against EXP-PN and EXP-INTF.

The EXP-PN MO is responsible for overall maintenance of an Expansion Port

Network (EPN). The focus of EPN maintenance is on the EI or on the ATM's EI

circuit pack that is acting as the Expansion Archangel in an EPN. EXP-INTF or

ATM-EI covers maintenance of the EI or ATM EI circuit pack, while EXP-PN

covers a much broader area of activities and problems on an EPN. The alarming

strategy for EXP-PN is fairly simple and does not make use of any failure analysis

routine for spawning maintenance actions. EXP-PN alarming is based on the

availability of an EPN for service and the EPN's response to various recovery

When investigating alarms logged against an EPN, problems involving the EI, an

ATM EI circuit pack acting as the Expansion Archangel, and problems that may

involve loss of communication between the EPN and the media server should be

investigated. This could ultimately include fiber links (FIBER-LK), DS1 CONV

circuit packs (DS1 CONV-BD), SNI circuit packs (SNI-BD) and Switch Node

Configurations (SN-CONF) for CSS. For ATM, this could include the PN ATM EI

(ATM-EI) circuit pack, the ATM switch (ATM-NTWK), and EPN ATM EI (ATM-EI)

circuit pack.

While not an exhaustive discussion of PN recovery actions, this section describes

at a high level the causes and effects of PN restarts so that these Error Log

events can be understood.

Initial SAT Command to Run

display errors

Full Name of MO

Expansion Port Network

Issue 1 May 2002