show l2circuit connections

Displays the legends for connection and interface status.

Remote PE neighbor.

Logical PE-to-CE interface on which the virtual circuit is configured.

VC type: rmt (remote) or loc (local).

Status of the virtual circuit connection:

• EI—The local virtual circuit interface is configured with an encapsulation that is not supported.

• MM—The two routers do not agree on an MTU value, which causes an MTU mismatch.

• EM—The encapsulation type received on this virtual circuit from the neighbor does not match the local virtual circuit interface encapsulation type.

• CM—The two routers do not agree on a control word, which causes a control word mismatch.

• VM—The remote and local VLAN IDs do not match across the Layer 2 circuit.

• OL—No advertisement has been received for this virtual circuit from the neighbor. There is no outgoing label available for use by this virtual circuit.

• NC—The interface is not configured as a CCC or TCC interface.

• BK—The virtual circuit has switched to a backup connection.

• CB—The remote PE router is advertising a different cell bundle from that configured on the local PE router.

• LD—The connection to the local site is signaled down, because the CE-facing interface to the local site is down.

• RD—The remote neighbor is down. It has signaled a problem using the pseudowire status code.

• NP—The router detects that interface hardware is not present. The hardware may be offline, a PIC may not be of the desired type, or the interface may be configured in a different routing instance.

• Dn—The virtual circuit is down.

• VC-Dn—The virtual circuit is down because there is no tunnel LSP from the local PE router to the neighbor.

• UP—The virtual circuit is operational.

• CF—The router cannot find enough bandwidth to the remote router to satisfy the Layer 2 circuit bandwidth requirement.

• IB—The bit rate is incompatible for Time Division Multiplexing (TDM).

• TDM—TDM is not configured correctly.

• ST—The virtual circuit has been switched to a standby connection.

• SP—The virtual circuit connection is using a static pseudowire.

• RS—The remote site is in a standby state.

• XX—The virtual circuit is down for an unknown reason. This is a programming error.

Date and time the virtual circuit was last operational.

Number of times the virtual circuit came up.

Name of the local PE-to-CE interface.

Status of the local interface.

Interface is operational.

Interface is not operational.

Not present. Interface does not exist.

Disabled. Interface has been administratively disabled.

Wrong encapsulation. The interface is not configured as CCC.

Interface status is initialized.

Encapsulation of the local interface.

Flow label transmit status.

Flow label receive status.

Prefix of the remote PE router.

Whether the use of the control word has been negotiated for this virtual circuit: Yes (Null) or No.

Label used by the remote side of the virtual circuit to send packets destined to the local side. This label is routed to the local virtual circuit interface.

Label used by the local side of the virtual circuit to send packets to the remote side of the virtual circuit. Packets originated on the local virtual circuit interface are encapsulated with this label before being placed on the tunnel LSP to the neighbor for this virtual circuit. This label is allocated by the neighbor and is used in demultiplexing incoming packets destined for this virtual circuit.

Displays the pseudowire status type, length, and value (TLV). TLVs are a method of encoding variable-length or optional information. If the pseudowire status TLV is used, the corresponding local or neighbor PE router status code is also displayed.

If the pseudowire status TLV is used, displays the local PE router status code.

If the pseudowire status TLV is used, displays the neighbor PE router status code.

Name of the local interface used for the Layer 2 circuit connection.

Status of the local interface (Up or Down).

Encapsulation configured for the local interface.

Indicates that the interface belongs to the working circuit.

Indicates that the interface belongs to the protect circuit.

Whether or not connection protection is configured for the Layer 2 circuit to the neighbor: Yes or No.

Bandwidth requirement of the Layer 2 circuit.

Time at which the event occurred.

Event types logged in history.

• loc intf up—Local virtual circuit interface went up.

• loc intf down—Local virtual circuit interface went down.

• In lbl Update—Incoming label has been updated.

• Out lbl Update—Outgoing label has been updated.

• PE route changed—Route to PE router has been updated.

• PE route down—Route to PE router is down.

• rmt side marked—Remote side is marked.

• VC Dn—Remote side indicated that its end of the virtual circuit is down (if the tunnel LSP from the remote side to the local side is down).

• status update timer—Status update timer processing. It computes the state of the virtual circuit, and determines whether it should be advertised to or withdrawn from the remote side.