Avaya ESS User Manual

ESS failover examples
Issue 1.1 June 2005 39
Figure 11: Normal operation CSS with single ESS server
CSS
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 #2
PN #3
disc
S8500 ESS Server
(1st Alternative)
PN #4
PN #5
PN #2 does not
have an IPSI
Recommended for survivability:
- IPSI in every PN
- IP Media Processor in every PN
cycmcss1 KLC 031505
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

Avaya ESS Specifications

General

Brand	Avaya
Model	ESS
Category	Server
Language	English