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traceroute ethernet

Syntax




traceroute ethernet (mac-address | mep-id)


maintenance-association ma-name


maintenance-domain md-name


ttl value


<wait seconds>

Release Information

Command introduced in JUNOS Release 9.0.

mep-id option introduced in JUNOS 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 — 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 ethernet

Output Fields

Table 54 lists the output fields for the traceroute ethernet command. Output fields are listed in the approximate order in which they appear.

Table 54: 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	A 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:ff

Linktrace 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

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