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232 CHAPTER 16: CONFIGURING LAPB AND X.25
[Router-Serial0]x25 x121-address 2
[Router-Serial0]x25 x25 vc-range in-channel 10 20 bi-channel 30 1024
[Router-Serial0]x25 pvc 1 ip 1.1.1.1 x121-address 1
[Router-Serial0]ip address 1.1.1.2 255.0.0.0
3 Configure Router B
a Start X.25 switching
[Router]x25 switching
b Configure Ethernet 0
[Router]interface ethernet 0
[Router-Ethernet0]ip address 10.1.1.1 255.0.0.0
c Configure Serial 0
[Router-Ethernet0]interface serial 0
[Router-Serial0]link-protocol x25 dce ietf
[Router-Serial0]x25 x25 vc-range in-channel 10 20 bi-channel 30 1024
[Router-Serial0]x25 xot pvc 1 10.1.1.2 interface serial 0 pvc 1
4 Configure Router C
a Start X.25 switching
[Router]x25 switching
b Configure Ethernet 0
[Router]interface ethernet 0
[Router-Ethernet0]ip address 10.1.1.2 255.0.0.0
c Configure Serial 0.
[Router-Ethernet0]interface serial 0
[Router-Serial0]link-protocol x25 dce ietf
[Router-Serial0]x25 vc-range in-channel 10 20 bi-channel 30 1024
[Router-Serial0]x25 xot pvc 1 10.1.1.1 interface serial 0 pvc 1
Application of X.25 Load
Balancing
I. Networking Requirements
Configure hunt group on Server RouterA which serves as an X.25 switch and
simultaneously enable the function of substitution of destination address and
source address, so that the caller can treat router RouterB, RouterC and RouterE
equally as one destination, and the calls of X.25 terminal can be sent to routers
RouterB, RouterC and RouterE to achieve load balancing. Therefore the load
balancing of routers on X.25 network can be implemented. As an X.25 switching
exchange, router RouterD performs the XOT function and connects RouterA and
RouterE. Router RouterB, RouterC and RouterE are DTEs in a hunt group. They
provide X.25 terminals with identical services.