Avaya S8100 Series - Page 53

Reliability and availability
Issue 2.1 June 2006 53
Note:
Note: The terms control and bearer mean control network and bearer network,
respectively. More detailed definitions of reliability levels, including the circuit
packs involved, are given in the Hardware Description and Reference for Avaya
Communication Manager, 555-245-207.
For more information on conversions, see Conversions
on page 1035.
Table 1: Reliability levels (per system) for Linux-based systems
SImplex Duplex High Critical
S8500
(pre-3.0 releases)
● one
server
● single
control
● single
bearer
NA NA NA
S87xx
fiber-PNC (all releases)
NA
● two
servers
● single
control
● single
bearer
● two
servers
● duplicated cc
control
● single
bearer
● two
servers
● duplicated
control
● duplicated
bearer
S87xx
IP-PNC (pre-3.1 releases)
NA
● two
servers
● single
control
● single
bearer
● two
servers
● duplicated c
control
● single
bearer
NA
Table 2: Reliability levels (per PN) for Release 3.1 Linux-based systems
Duplex High Critical
S87xx
IP-PNC (Release 3.1 and later)
● two servers
● single
control
● single
bearer
● two servers
● duplicated
control
● single bearer
● two servers
● duplicated
control
● duplicated
bearer