Avaya ESS User Manual page 48

ESS Overview
Figure 17: ATM with a single ESS server in normal operation
PN #1
PN #2 does not have
an IPSI but remains in
service via PN #3
48 Avaya Enterprise Survivable Servers (ESS) Users Guide
S8710 Media Server
(Main Server)
disc COMPACT
disc COMPACT
PN #2
PN #3
Port Network Control Link (EAL)
IP Connection into Control Network
Server or Network Failure
VoIP Path
DSIC LInk
1
2
UID
S8500 ESS Server
(1st Alternative)
1
2
UID
disc
PN #4
ATM
CSS / EI (Fiber)
ATM / ATM-EI (Fiber)
Dup Link
Out of Service
cycmatm1 KLC 031605
PN #6
PN #5
PN #5 does not have
an IPSI but remains in
service via PN #4