20
Backup FEP configuration example (transparent mode)
Network requirements
In transparent mode, a pair of primary and backup FEPs can provide service for only one POS terminal.
As shown in Figure 11, FEP
-A (primary FEP) and FEP-B (backup FEP) provide service for the AM POS
terminal. If FEP-A is unreachable, FEP-B is used.
The FEPs have POS access enabled and use the listening port 2000.
Figure 11 Network diagram
Configuration procedure
1. Enable the POS access service.
<RouterA> system-view
[RouterA] posa server enable
2. Configure application template 1:
# Configure application template 1 in TCP mode.
[RouterA] posa app 1 type tcp
# Specify FEP-A with IP address 2.2.2.1 and port number 2000 for application template 1.
[RouterA-posa-app1] ip 2.2.2.1 port 2000
# Specify application template 2 as the backup application template.
[RouterA-posa-app1] backup app 2
# Set the quiet timer for POS application template 1 to 10 minutes.
[RouterA-posa-app1] timer quiet 10
[RouterA-posa-app1] quit
3. Configure POS application template 2:
# Configure application template 2 in TCP mode.
[RouterA] posa app 2 type tcp
# Specify FEP-B with IP address 2.2.2.2 and port number 2000 for POS application template 2.
[RouterA-posa-app2] ip 2.2.2.2 port 2000
[RouterA-posa-app2] quit
4. Configure the AM POS terminal template:
# Configure interface AM 5/0 as the access interface of terminal template 12. Specify terminal
template 12 to use POS application template 1 to transparently transport packets of the terminal.
[RouterA] interface analogmodem 5/0
[RouterA-Analogmodem5/0] posa bind terminal 12 app 1
[RouterA-Analogmodem5/0] quit
