Dell PowerConnect J-EX4200-24T Software Manual page 3218

Dell PowerConnect J-Series Ethernet Switch Complete Software Guide for Junos OS
Additional Information
Required Privilege
Level
List of Sample Output
Output Fields
ping mpls l2circuit ping mpls l2circuit
interface interface
ping mpls l2circuit
virtual-circuit detail
3146
virtual-circuit virtual-circuit-id neighbor address
egress PE router or switch and the specified neighbor, testing the integrity of the
Layer 2 circuit between the ingress and egress PE routers or switches.
You must configure MPLS at the
router or switch (the router or switch receiving the MPLS echo packets) to ping a Layer
2 circuit.
In asymmetric MTU scenarios, the echo response may be dropped. For example, if the
MTU from System A to System B is 1000 bytes, the MTU from System B to System A is
500 bytes, and the ping request packet size is 1000 bytes, the echo response is dropped
because the PAD TLV is included in the echo response, making it too large.
network
ping mpls l2circuit interface on page 3146
ping mpls l2circuit virtual-circuit detail on page 3146
When you enter this command, you are provided feedback on the status of your request.
An exclamation point ( ! ) indicates that an echo reply was received. A period (
that an echo reply was not received within the timeout period. An
echo reply was received with an error code. Packets with an error code are not counted
in the received packets count. They are accounted for separately.
user@host> ping mpls l2circuit interface so-1/0/0.1
Request for seq 1, to interface 69, labels <100000, 100208>, packet size 100
Reply for seq 1, return code: Egress-ok, time: 0.439 ms
user@host> ping mpls l2circuit virtual-circuit 200 neighbor 10.255.245.122/32 detail
Request for seq 1, to interface 68, labels <100048, 100128>, packet size 100
Reply for seq 1, return code: Egress-ok time: 0.539 ms
—Ping the virtual circuit identifier on the
[edit protocols mpls] hierarchy level on the egress PE
. ) indicates
indicates that an
x