Supported Platforms
traceroute ethernet
Syntax
Release Information
Command introduced in Junos OS Release 9.0.
mep-id option introduced in Junos OS Release 9.1.
Description
Triggers the linktrace protocol to trace the route between two maintenance points. The result of the traceroute protocol is stored in the path database. To display the path database, use the show oam ethernet connectivity-fault-management path-database command.
Before using the traceroute command, you can verify the remote MEP’s MAC address using the show oam ethernet connectivity-fault-management path-database command.
Options
mac-address | — | Destination unicast MAC address of the remote maintenance point. |
mep-id | — | MEP identifier of the remote maintenance point. The range of values is 1 through 8191. |
maintenance-association ma-name | — | Specifies an existing maintenance association from the set of configured maintenance associations. |
maintenance-domain md-name | — | Specifies an existing maintenance domain from the set of configured maintenance domains. |
ttl value | — | Number of hops to use in the linktrace request. The range is 1 to 255 hops. The default is 4. |
wait seconds | — | (Optional) Maximum time to wait for a response to the traceroute request. The range is 1 to 255 seconds. The default is 5. |
Required Privilege Level
network
List of Sample Output
traceroute ethernetOutput Fields
Table 1 lists the output fields for the traceroute ethernet command. Output fields are listed in the approximate order in which they appear.
Table 1: traceroute ethernet Output Fields
Field Name | Field Description |
|---|---|
Linktrace to | MAC address of the destination maintenance point. |
Interface | Local interface used to send the linktrace message (LTM). |
Maintenance Domain | Maintenance domain specified in the traceroute command. |
Level | Maintenance domain level configured. |
Maintenance Association | Maintenance association specified in the traceroute command. |
Local Mep | The local maintenance end point identifier. |
Transaction Identifier | 4-byte identifier maintained by the MEP. Each LTM uses a transaction identifier. The transaction identifier is maintained globally across all Maintenance Domains. Use the transaction identifier to match an incoming linktrace response (LTR), with a previously sent LTM. |
Hop | Sequential hop count of the linktrace path. |
TTL | Number of hops remaining in the linktrace message. The time to live (TTL) is decremented at each hop. |
Source MAC address | MAC address of the 802.1ag maintenance point that is sending the linktrace message. |
Next-hop MAC address | MAC address of the 802.1ag node that is the next hop in the LTM path. |
Sample Output
traceroute ethernet
user@host> traceroute ethernet maintenance-domain
md1 maintenance-association ma1 00:90:69:7e:01:ffLinktrace to 00:01:02:03:04:05, Interface : ge-5/0/0.0
Maintenance Domain: MD1, Level: 7
Maintenance Association: MA1, Local Mep: 1
Hop TTL Source MAC address Next hop MAC address
Transaction Identifier:100001
1 63 00:00:aa:aa:aa:aa 00:00:bb:bb:bb:bb
2 62 00:00:bb:bb:bb:bb 00:00:cc:cc:cc:cc
3 61 00:00:cc:cc:cc:cc 00:01:02:03:04:05
4 60 00:01:02:03:04:05 00:00:00:00:00:00
