Avaya Mobile Communication 3100 Planning and Engineering Manual de usuario descargar pdf (Pagina 20)

20 Planning

The clients support MCG 3100 redundancy. The Primary MCG 3100

address and Secondary MCG 3100 address fields in the clients contain the

active and standby MCG 3100 IP addresses respectively. When the active

MCG 3100 stops responding, the clients switch to the other MCG 3100.

Attention: The communication link between two MCG 3100 servers

in the redundant pair must be highly reliable and available. When the

gateways cannot communicate with each other, they both become active,

start processing traffic, and try to register with the NRS. The NRS has

only one gateway endpoint associated with the MCG 3100, so the second

gateway to register with the NRS receives all the incoming SIP traffic.

MCG 3100 and Enterprise Communication Server high availability

A single MCG 3100 can support multiple call servers using the Source

Based Routing (SBR) functionality on the NRS-SPS . For more information

about SBR, see "CS 1000 Source Based Routing" (page 32).

When the MCG 3100 sends an INVITE with the SBR tag, the SPS uses

the configured routing translations to route the call to the originators home

call server. Figure 5 "Support for multiple call servers using UDP" (page

21) shows a Universal Dialing Plan (UDP) example and Figure 6 "Support

for multiple call servers using CDP " (page 22) shows a Coordinated

Dialing Plan (CDP) example of high availability call servers.

Nortel Mobile Communication 3100

Nortel Mobile Communication 3100 Planning and Engineering

NN42030-200 04.01 2 October 2009

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Avaya Mobile Communication 3100 Planning and Engineering Manual de usuario Pagina 20