R3303-HP HSR6800 Routers Layer 2 - WAN Configuration Guide

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[RouterA-Serial2/0/1] quit
# Configure the IP address and DLCI of the subinterface Serial 2/0/1.1.
[RouterA] interface serial 2/0/1.1 p2p
[RouterA-Serial2/0/1.1] ip address 202.38.163.251 255.255.255.0
[RouterA-Serial2/0/1.1] fr dlci 100
4. Configure Router B:
# Enable frame relay on interface Serial 2/0/1 and configure the interface to operate in DTE
mode.
<RouterB> system-view
[RouterB] interface serial 2/0/1
[RouterB-Serial2/0/1] link-protocol fr
[RouterB-Serial2/0/1] quit
# Configure IP address of the subinterface and local virtual circuit.
[RouterB] interface serial 2/0/1.1 p2p
[RouterB-Serial2/0/1.1] ip address 202.38.163.252 255.255.255.0
[RouterB-Serial2/0/1.1] fr dlci 100
Troubleshooting frame relay
Symptom 1
The physical layer is in down status.
Solution
Check the following items:
• Check the physical line.
• Check that the remote device is working correctly.
Symptom 2
The physical layer is already up, but the link layer protocol is down.
Solution
Check the following items:
• Frame relay is enabled on the peer devices.
• If the two devices are directly connected, make sure one end is in DTE mode and the other end is
in DCE mode.
• Both ends are using the same LMI protocol.
• If the problem persists, execute the debugging lmi command to determine whether one Status
Response message is received for each Status Request message. If not, check the physical layer.
Symptom 3
The link layer protocol is up, but the remote party cannot be pinged.
Solution
Check the following items:
• The devices at both ends have configured (or created) correct address mapping for the peer.
• A route to the peer exists if the devices are not in the same subnet segment.