Nortel Networks 8000 - Manual (Page 366)

8 Frame relay configuration
Nortel Secure Router 8000 Series
Configuration -WAN Access
interface Serial1/0/0
link-protocol fr
fr dlci 17
ip address 2.2.2.67 255.255.255.0
#
The configuration file on Router B is as follows:
#
interface Serial1/0/0
link-protocol fr
fr interface-type dce
#
interface Serial1/0/0.1
fr dlci 17
ip address 2.2.2.65 255.255.255.0
#
interface Serial1/0/0.2
fr dlci 18
ip address 3.1.1.1 255.255.255.0
#
After the configuration, Router B can ping through 2.2.2.67. However, Router A cannot ping
through 2.2.2.65.
Fault analysis
Step 1 Check the mapping information on Router A.
<RouterA> display fr map-info
Map Statistics for interface Serial1/0/0 (DTE)
DLCI = 17, IP INARP 2.2.2.65, Serial1/0/0
create time = 2005/12/22 15:18:58, status = ACTIVE
encapsulation = ietf, vlink = 393236, broadcast
DLCI = 18, IP INARP 3.1.1.1, Serial1/0/0
create time = 2005/12/22 15:12:57, status = ACTIVE
encapsulation = ietf, vlink = 393227, broadcast
Step 2 Check the mapping information on Router B.
<RouterB> display fr map-info
Map Statistics for interface Serial1/0/0 (DCE)
DLCI = 18, IP INARP 2.2.2.67, Serial1/0/0.2
create time = 2005/12/22 15:18:38, status = ACTIVE
encapsulation = ietf, vlink = 393219, broadcast
Step 3 Analyze the mapping information.
From the display fr map-info command output, you can see the following information:
• On Router A, two lists of mapping information with DLCI as 17 and 18 exist. Between
them, the PVC with DLCI as 17 maps to the IP address 2.2.2.65.
• On Router B, there is no mapping information with DLCI as 17. Only the mapping
information with DLCI as 18 that maps to the IP address 2.2.2.67 exist.
After the fault analysis, the following conclusions can be reached:
8-76 Nortel Networks Inc. Issue 5.3 (30 March 2009)