User manual

Nortel Secure Router 8000 Series
Configuration -WAN Access 7 LAPB and X.25 configuration
Issue 5.3 (
30 March 2009) Nortel Networks Inc. 7-43
# Specify an X.121 address for this interface.
[RouterB-Serial1/0/0] x25 x121-address 20112452
# Specify the address mapping heading for the peer.
[RouterB-Serial1/0/0] x25 map ip 202.38.160.1 x121-address 20112451
# Increase the traffic control parameters slightly because the routers are directly connected.
[RouterB-Serial1/0/0] x25 packet-size 1024 1024
[RouterB-Serial1/0/0] x25 window-size 5 5
[RouterB-Serial1/0/0] shutdown
[RouterB-Serial1/0/0] undo shutdown
Step 3 Verify the configuration.
The two ends can establish VC only when they have communication requirement because
SVC is adopted in this example.
# Configure Router A to ping Router B.
[RouterA-Serial1/0/0] ping 202.38.160.2
PING 202.38.160.2: 56 data bytes, press CTRL_C to break
Reply from 202.38.160.2: bytes=56 Sequence=1 ttl=255 time=280 ms
Reply from 202.38.160.2: bytes=56 Sequence=2 ttl=255 time=40 ms
Reply from 202.38.160.2: bytes=56 Sequence=3 ttl=255 time=30 ms
Reply from 202.38.160.2: bytes=56 Sequence=4 ttl=255 time=50 ms
Reply from 202.38.160.2: bytes=56 Sequence=5 ttl=255 time=30 ms
--- 202.38.160.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/86/280 ms
The VC establishes between the two devices. Display the mapping information on Router A.
[RouterA-Serial1/0/0] display x25 map
Interface: Serial1/0/0(protocol status is UP)
Ip address:ip 202.38.160.2 X.121 address:20112452
Map-type: SVC_MAP VC-number: 1
Facility:
# Display the VC information on Router A.
[RouterA-Serial1/0/0] display x25 vc
Interface: Serial1/0/0
SVC 1024
State: P4
Map: ip 202.38.160.2 to 20112452
Window size: input 5 output 5
Packet Size: input 1024 output 1024
Local PS: 5 Local PR: 5 Remote PS: 4 Remote PR: 5
Local Busy: FALSE Reset times: 0
Input/Output:
DATA 5/5 INTERRUPT 0/0
RR 0/0 RNR 0/0 REJ 0/0
Bytes 420/420
Snd Queue(Current/Max): 0/200