Avaya ESS

ESS Overview
48 Avaya Enterprise Survivable Servers (ESS) Users Guide
Figure 17: ATM with a single ESS server in normal operation
UID
2
1
0
1
1
0
3
2
3
2
disc
COMPACT
5
4
5
4
S
i
m
p
l
e
x
D
u
p
l
e
x
ch
ch
2
1
UID
2
1
0
1
1
0
3
2
3
2
disc
COMPACT
5
4
5
4
S
i
m
p
l
e
x
D
u
p
l
e
x
ch
ch
2
1
S8710 Media Server
(Main Server)
PN #1 PN #6
PN #2 PN #5
PN #3 PN #4
cycmatm1 KLC 031605
disc
S8500 ESS Server
(1st Alternative)
ATM
Out of Service
CSS / EI (Fiber)
ATM / ATM-EI (Fiber)
Dup Link
Port Network Control Link (EAL)
IP Connection into Control Network
Server or Network Failure
VoIP Path
DSIC LInk
PN #2 does not have
an IPSI but remains in
service via PN #3
PN #5 does not have
an IPSI but remains in
service via PN #4