Pinging Layer 2 VPNs
Enter the ping mpls l2vpn command with the following syntax:
Table 1 describes the ping mpls l2vpn command options.
Table 1: CLI ping mpls l2vpn Command Options
Option | Description |
|---|---|
l2vpn interface interface-name | Sends ping requests out the specified interface configured for the Layer 2 VPN on the outbound (egress) PE device. |
l2vpn instance l2vpn-instance-name local-site-id local-site-id-number remote-site-id remote-site-id-number | Pings on a combination of the Layer 2 VPN routing instance name, the local site identifier, and the remote site identifier, testing the integrity of the Layer 2 VPN circuit (specified by the identifiers) between the inbound (ingress) and outbound PE devices. |
bottom-label-ttl | (Optional) Displays the time-to-live (TTL) value for the bottom label in the MPLS label stack. |
exp forwarding-class | (Optional) Specifies the value of the forwarding class to be used in the MPLS ping packets. |
countnumber | (Optional) Limits the number of ping requests to send. Specify a count from 0 through 1,000,000. The default value is 5. If you do not specify a count, ping requests are continuously sent until you press Ctrl-C. |
source source-address | (Optional) Uses the source address that you specify, in the ping request packet. |
detail | (Optional) Displays detailed output about the echo requests sent and received. Detailed output includes the MPLS labels used for each request and the return codes for each request. |
To quit the ping mpls l2vpn command, press Ctrl-C.
The following is sample output from a ping mpls l2vpn command:
Request for seq 1, to interface 68, labels <800001, 100176> Reply for seq 1, return code: Egress-ok Request for seq 2, to interface 68, labels <800001, 100176> Reply for seq 2, return code: Egress-ok Request for seq 3, to interface 68, labels <800001, 100176> Reply for seq 3, return code: Egress-ok Request for seq 4, to interface 68, labels <800001, 100176> Reply for seq 4, return code: Egress-ok Request for seq 5, to interface 68, labels <800001, 100176> Reply for seq 5, return code: Egress-ok --- lsping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss
The fields in the display are the same as those displayed by the J-Web ping MPLS diagnostic tool.
