H3C XE 200/2000 IP, Руководство по эксплуатации

Страница: 230 / 514

Operation Manual – Feature
H3C XE 200/2000 IP PBX
Chapter 2 Backup and Load Sharing
2-4
The OFFICE-GROUP-PS backup model performs backup specific to office PSs.
Namely, when the primary office PS in an office group, the secondary PS in the office
group will take over the work of the faulty one.
The networking configuration scenario in Figure 2-3 is as follows:
z
Location Server 1 dominates Process Server 1, and Location Server 2 dominates
Process Server 2 and Process Server 3.
z
On Process Server 2, assign Process Server 2, Process Server 3 and Gateway 2
to the same PS group, and specify Process Server 2 as the primary PS in the
group.
z
Gateway 1 registers to Location Server 1 through Process Server 1, and Gateway
2 registers to Location Server 2 through Process Server 2.
z
Configure an office group that contains Office Process Server 2 and Office
Process Server 3 on Location Server 1. The priority of Office Process Server 2 is
higher than that of Office Process Server 3.
After office configuration, Location Server 1 notifies Process Server 1 to send
periodically heartbeat messages to Process Server 2, the high-priority office PS in the
office group. If a heartbeat response is received, this means that Office Process Server
2 is available. When Process Server 2 fails, Location Server 1 notifies Process Server 1
to sends heartbeat periodically messages to Process Server 3, which has a priority
level next to Process Server 2. If a heartbeat response is received, this means that
Office Process Server 3 is available. In this case, Process Server 1 continues
attempting to establish a heartbeat connection with Process Server 2, while Gateway 2
registers to Location Server 2 through Process Server 3. When a user on Gateway 1
calls a user on Gateway 2, the call can proceed even if Process Server 2 has failed.
This is what office PS backup is for. If a heartbeat connection is successfully
established between Process Server 1 and Process Server 2, this means that the
Process Server 2 has recovered from failure, and Gateway 2 will also continue to
register to Location Server 2 through Process Server 2.
2.1.3 Configuring LS Backup
To implement LS backup, you need at least two LSs (at most five LSs), one of which
serves as the primary server, and the others as the secondary servers. The
configuration procedure is as follows:
1) Configure the PS information on the primary LS and all secondary LSs. For details,
see the basic LS configuration part of “LS Configuration Operations”.
2) Configure the gateway information on the primary LS and all secondary LSs. For
details, see the basic LS configuration part of “LS Configuration Operations”.
3) Configure the information of the primary and secondary LSs on the PS. For details,
see 2.1.3 I. “ Configuring LS list entries on the PS ”.