Typical Configuration Of Interconnecting LANs through FR on AR28、AR46 Series Router--dynamic mapping
[Requirements]
RouterA serves as the headquarters, and RouterB and RouterC are interconnected through FR.
[Networking diagram]
[Configuration script]
|
Configuration script (RouterA) |
|
#
sysname RouterA
#
radius scheme system
#
domain system
#
interface Serial1/0/0
link-protocol fr /Set the encapsulation mode to FR, which defaults to DTE/
ip address 202.38.163.251 255.255.255.0
#
interface Ethernet0/0/0
ip address 192.168.1.1 255.255.255.0
#
interface NULL0
#
user-interface con 0
user-interface vty 0 4
#
return |
|
Configuration script (RouterB) |
|
#
sysname RouterB
#
radius scheme system
#
domain system
#
interface Serial1/0/0
link-protocol fr /Set the encapsulation mode to FR, which defaults to DTE/
ip address 202.38.163.252 255.255.255.0
#
interface Ethernet0/0/0
ip address 192.168.2.1 255.255.255.0
#
interface NULL0
#
user-interface con 0
user-interface vty 0 4
#
return |
|
Configuration script (RouterC) |
|
#
sysname RouterC
#
radius scheme system
#
domain system
#
interface Serial1/0/0
link-protocol fr /Set the encapsulation mode to FR, which defaults to DTE/
ip address 202.38.163.253 255.255.255.0
#
interface Ethernet0/0/0
ip address 192.168.3.1 255.255.255.0
#
interface NULL0
#
user-interface con 0
user-interface vty 0 4
#
return |
|
Configuration script (FR switch) |
|
#
sysname FR-switch
#
fr switching /Enable FR switching/
#
radius scheme system
#
domain system
#
interface Serial2/0/0
link-protocol fr
fr interface-type dce /Set the interface type to DCE/
fr dlci 50
fr dlci 60
#
interface Serial2/0/1
link-protocol fr
fr interface-type dce /Set the interface type to DCE/
fr dlci 70
#
interface Serial2/0/2
link-protocol fr
fr interface-type dce /Set the interface type to DCE/
fr dlci 80
#
interface NULL0
#
fr switch A-B interface Serial2/0/0 dlci 50 interface Serial2/0/1 dlci 70
/Configure the PVC for RouterA and RouterB switching through FR/
fr switch A-C interface Serial2/0/0 dlci 60 interface Serial2/0/2 dlci 80
/Configure the PVC for RouterA and RouterC switching through FR/
#
user-interface con 0
user-interface vty 0 4
#
return |
[Verification]
The headquarters and branches can successfully ping each other.
FR map of RouterA in the static mapping mode:
<RouterA>disp fr map
PVC map Statistics for interface Serial1/0/0 (DTE)
DLCI = 50, IP 202.38.163.252, Serial1/0/0
create time = 2006/07/16 03:12:36, status = ACTIVE
encapsulation = ietf, vlink = 1
DLCI = 60, IP 202.38.163.253, Serial1/0/0
create time = 2006/07/16 03:12:36, status = ACTIVE
encapsulation = ietf, vlink = 2
FR map of RouterA in the dynamic mapping mode:
[RouterA]disp fr map
PVC map Statistics for interface Serial1/0/0 (DTE)
DLCI = 50, IP INARP 202.38.163.252, Serial2/0/0
create time = 2006/07/16 03:41:39, status = ACTIVE
encapsulation = ietf, vlink = 4, broadcast
DLCI = 60, IP INARP 202.38.163.253, Serial1/0/0
create time = 2006/07/16 03:41:39, status = ACTIVE
encapsulation = ietf, vlink = 3, broadcast
FR switching table of FR switch:
<FR-switch>disp fr switch-table all
Total PVC switch records:2
PVC-Name Status Interface(Dlci) <-----> Interface(Dlci)
A-B Active Serial2/0/0(50) Serial2/0/1(70)
A-C Active Serial2/0/0(60) Serial2/0/2(80)
[Tip]
- The DLCI number is meaningful only at local. It is not a global parameter, and provided by the ISP.
- A user interface on the FR network can support up to 1024 virtual circuits, where the DLCI available for the user is in the range 16 to 1007.
- By default, the system allows inverse address resolution to IP and IPX.
- The link protocol will up after the negotiation between the router and the local FR switch succeeds, which does not mean that the two ends can communicate with each other.
