3com 8807 Betriebsanweisung
630
C
HAPTER
51: MPLS VLL
Troubleshooting MPLS
L2VPN
L2VPN
Symptom 1: Fail to configure Layer 2 VPN on the VLAN interface.
Solution:
■
Check to see if MPLS/BGP VPN, multicast, or VLL is enabled on the VLAN
interface. Because you cannot perform Layer 2 VPN configuration on a VLAN
interface if MPLS/BGP VPN, multicasting, or VLL is enabled on it.
interface. Because you cannot perform Layer 2 VPN configuration on a VLAN
interface if MPLS/BGP VPN, multicasting, or VLL is enabled on it.
■
Check to see if the VLAN is a Super-Vlan or a Sub-Vlan. You can perform the
Layer 2 VPN configuration only on common VLAN interfaces.
Layer 2 VPN configuration only on common VLAN interfaces.
Symptom 2: Fail to ping the peer from one end of a Martini MPLS L2VPN
connection. The VC is down and the Remote value is invalid.
connection. The VC is down and the Remote value is invalid.
Solution:
■
VC state being down indicates the encapsulation types or VC IDs of the two
ends are not the same. Make sure the interface types (Access or Trunk) of the
two PE interfaces and the VC IDs of the two ends are consistent.
ends are not the same. Make sure the interface types (Access or Trunk) of the
two PE interfaces and the VC IDs of the two ends are consistent.
■
As for the invalid Remote value, make sure you have configured the Remote
parameters and the peer addresses correctly.
parameters and the peer addresses correctly.
Symptom 3: Fail to ping the peer of a Kompella MPLS L2VPN connection. The
Connection is down and the VPN value is null.
Connection is down and the VPN value is null.
Solution:
■
VPN value being null indicates the VPN is configured incorrectly. Make sure the
VPN configurations (such as RD) of the both ends are consistent, and the
connection configurations of the two CEs on both ends are correct.
VPN configurations (such as RD) of the both ends are consistent, and the
connection configurations of the two CEs on both ends are correct.
Table 567 Display and debug L2VPN
Operation
Command
Description
Display information about a
CCC MPLS L2VPN connection
CCC MPLS L2VPN connection
display ccc [ ccc-name | type [ local |
remote ] ]
remote ] ]
You can execute the
display command in
any view.
display command in
any view.
Display information about a
Martini MPLS L2VPN
connection
Martini MPLS L2VPN
connection
display mpls l2vc [ interface
vlan-interface vlan-id | verbose ]
vlan-interface vlan-id | verbose ]
Display information about a
Kompella MPLS L2VPN
connection
Kompella MPLS L2VPN
connection
display mpls l2vpn [ vsi-name [
local-ce | remote-ce ] | connection [
vsi-name [ down | remote-ce | up |
verbose ] | brief | interface
Vlan-interface vlan-id ] |
forwarding-info { vc-label | interface
interface-type } ]
local-ce | remote-ce ] | connection [
vsi-name [ down | remote-ce | up |
verbose ] | brief | interface
Vlan-interface vlan-id ] |
forwarding-info { vc-label | interface
interface-type } ]
Display information about the
system or about Kompella
MPLS L2VPNs
system or about Kompella
MPLS L2VPNs
display bgp l2vpn all
Enable debugging for MPLS
L2VPN
L2VPN
debugging mpls l2vpn { all |
loadshare | advertisement | error |
event | connections [ interface
vlan-interface vlan-id ] }
loadshare | advertisement | error |
event | connections [ interface
vlan-interface vlan-id ] }
Execute this
command in user
view.
command in user
view.