User manual

8 Frame relay configuration
Nortel Secure Router 8000 Series
Configuration -WAN Access
8-58 Nortel Networks Inc. Issue 5.3 (
30 March 2009)
return
switching
erface Serial1/0/0
fr
interface-type nni
fr
interface-type dce
Serial1/0/0 dlci 300 interface Serial2/0/0 dlci 200
urn
erface Serial2/0/0
address 196.1.1.2 255.255.255.0
8.14.5 Example for configuring the PVC backup of frame relay
switching
equirements
As shown in Figure 8-8, in the general packet radio service (GPRS) application, you set up a
base station controller (BSC) and a serving GPRS support node (SGSN).
FR switch.
z
Configuration file of Router C
#
sn
sy ame RouterC
#
fr
#
int
link-protocol
fr
fr dlci 300
#
interface Serial2/0/0
link-protocol
fr
fr dlci 200
#
fr switch pvc2 interface
#
ret
z
Configuration file of Router D
#
n
sys ame RouterD
#
int
link-protocol fr
ip
#
return
Networking r
FR link between a
Router A serves as a
You transparently back up SGSN 1 to SGSN 2. When errors occur on SGSN 1, the BSC can
automatically communicate with SGSN 2 without determining that SGSN 1 is out of service.
Configure switching PVC back up on Router A to implement the above requirements.