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(Method 2) Using subinterfaces
1. Configure Router A:
# Enable Frame Relay encapsulation on the interface Serial 2/1/0.
<RouterA> system-view
[RouterA] interface serial 2/1/0
[RouterA-Serial2/1/0] link-protocol fr
# Set the type of the interface Serial 2/1/0 to DCE.
[RouterA-Serial2/1/0] fr interface-type dce
[RouterA-Serial2/1/0] quit
# Create a subinterface Serial 2/1/0.1.
[RouterA] interface serial 2/1/0.1 p2p
# Configure the IP address and create a virtual circuit for the subinterface Serial 2/1/0.1.
[RouterA-Serial2/1/0.1] ip address 202.38.163.251 255.255.255.0
[RouterA-Serial2/1/0.1] fr dlci 100
2. Configure Router B:
# Enable Frame Relay encapsulation on interface Serial 2/1/0.
<RouterB> system-view
[RouterB] interface serial 2/1/0
[RouterB-Serial2/1/0] link-protocol fr
# Set the type of the interface Serial 2/1/0 to DTE.
[RouterB-Serial2/1/0] fr interface-type dte
[RouterB-Serial2/1/0] quit
# Create a subinterface Serial 2/1/0.1.
[RouterB] interface serial 2/1/0.1 p2p
# Configure the IP address and create a virtual circuit for the subinterface Serial 2/1/0.1.
[RouterB-Serial2/1/0.1] ip address 202.38.163.252 255.255.255.0
[RouterB-Serial2/1/0.1] fr dlci 100
Verifying the configuration
This section verifies the configuration used in method 1.
# On Router B, verify that the PVC is active.
[RouterB-Serial2/1/0] display fr pvc
PVC information for interface Serial2/1/0 (DTE, physical UP)
DLCI: 100, Type: Dynamic, Serial2/1/0
Encapsulation: ietf
Creation time: 2014/02/19 01:38:00, Status: Active
Input: 2 packets, 60 bytes, 0 dropped
Output: 2 packets, 60 bytes, 0 dropped
# Verify that Router A and Router B can ping each other.
[RouterB-Serial2/1/0] ping 202.38.163.251
Ping 202.38.163.251 (202.38.163.251): 56 data bytes, press CTRL_C to break
56 bytes from 202.38.163.251: icmp_seq=0 ttl=255 time=76.007 ms
56 bytes from 202.38.163.251: icmp_seq=1 ttl=255 time=8.790 ms
56 bytes from 202.38.163.251: icmp_seq=2 ttl=255 time=1.630 ms
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