Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 164)

140 Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide
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FRR bypass LSPs
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Resetting LSPs
The clear mpls lsp command allows the user to reset an RSVP LSP session. Changes in the routing
table after an LSP path is established do not take effect unless the LSP is brought down and then
brought up again. After the user resets the LSP, it realigns to the new routing topology. The clear
mpls lsp command can be used on the ingress LSR of the LSP.
Resetting normal LSPs
The clear mpls lsp command allows the user to reset normal LSPs. The user has the option of
supplying the primary/secondary parameter for a normal LSP to reset only the primary/secondary
path of the LSP.
To reset or clear a bypass RSVP LSP session.
Brocade(config-mpls)# clear mpls bypass-lsp bypass-lsp-name
When the user resets an LSP with the clear mpls lsp command, the following information message
is displayed.
"Disconnecting signaled LSP name"
"Connecting signaled LSP name"
Syntax: clear mpls lsp lsp-name [primary | secondary]
When a primary or secondary optional keyword is not specified when the user resets a normal LSP,
then both the primary and secondary LSP paths associated with the lsp-name is reset and
restarted.
Resetting Bypass LSPs
This command allows the user to reset bypass LSPs.
NOTE
The primary or secondary optional keywords are not applicable for bypass LSPs.
Reset LSP considerations
The clear mpls lsp and clear mpls bypass-lsp commands reset and restart an MPLS RSVP LSP.
NOTE
These commands are disruptive. Data traffic forwarding is impacted as the LSP is not in active state
for sub-seconds after teardown. Resetting an LSP could trigger a series of actions depending upon
the current state of the LSP.
The following describes the actions and state changes when an LSP is reset.
Resetting an LSP also resets the associated backup/detour LSPs: