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clear mpls lsp


Syntax (EX and QFX Series Switches)


Release the routes and states associated with MPLS label-switched paths (LSPs), and start new LSPs.


This command disconnects existing Resource Reservation Protocol (RSVP) sessions on the ingress routing device. If there is a time lag between the old path being torn down and the new path being set up, this command might impact traffic traveling along the LSPs.



Reset and restart all LSPs that originated from this routing device; that is, all LSPs for which this routing device is the ingress routing device. Depending on the number of LSPs involved, it might take a while to restart all the LSPs.


(Optional) Clear LSP autobandwidth counters.


(Optional) Reset the flap and the MBB counters to zero.

logical-system (all | logical-system-name)

(Optional) Perform this operation on all logical systems or on a particular logical system.

name name

(Optional) Reset and restart the specified LSP or group of LSPs. You can include wildcard characters in the interface name, as described in the Junos Network Interfaces Configuration Guide.

optimize | optimize-aggressive

(Optional) Run nonpreemptive optimization or aggressive optimization computation now.

path regular-expression

(Optional) Clear the specific LSP path matching the specified regular expression.


(Optional) Clear LSP statistics. You cannot clear the MPLS LSP statistics using a regular expression (name and path options) on transit routers.

Required Privilege Level


Output Fields

When you enter this command, you are provided feedback on the status of your request.

Sample Output

clear mpls lsp all

Release Information

Command introduced before Junos OS Release 7.4.