Specifications

tunnel mpls traffic-eng priority
MP-882
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
tunnel mpls traffic-eng priority
To configure the setup and reservation priority for an Multiprotocol Label Switching (MPLS) traffic
engineering (TE) tunnel, use the tunnel mpls traffic-eng priority command in interface configuration
mode. To remove the specified setup and reservation priority, use the no form of this command.
tunnel mpls traffic-eng priority setu
p-priority [hold-priority]
no tunnel mpls traffic-eng priority setu
p-priority [hold-priority]
Syntax Description
Defaults setup-priority: 7
hold-priority: Th
e same value as the setup-priority
Command Modes Interface configuration
Command History
Usage Guidelines When a label switched path (LSP) is being signaled and an interface does not currently have enough
b
andwidth available for that LSP, the call admission software preempts lower-priority LSPs so that the
new LSP can be admitted. (LSPs are preempted if that allows the new LSP to be admitted.)
In the described determination, the new LSP’s priority is its setup priority and the existing LSP’s priority
is its h
old priority. The two priorities make it possible to signal an LSP with a low setup priority (so that
the LSP does not preempt other LSPs on setup) but a high hold priority (so that the LSP is not preempted
after it is established).
Setup priority and hold priority are typically configured to be equal, and setup priority cannot be better
(
numerically smaller) than the hold priority.
setup-priority The priority used when signalling an LSP for this tunnel to determine which
exi
sting tunnels can be preempted. Valid values are from 0 to 7, where a
lower number indicates a higher priority. Therefore, an LSP with a setup
priority of 0 can preempt any LSP with a non-0 priority.
hold-priority (Optional) The priority associated with an LSP for this tunnel to determine
i
f it should be preempted by other LSPs that are being signalled. Valid
values are from 0 to 7, where a lower number indicates a higher priority.
Release Modification
12.0(5)S This command was introduced.
12.2(28)SB This command was integrated into Cisco IOS Release 12.2(28)SB.
12.2(33)SRA This command was integrated into Cisco IOS Release 12.2(33)SRA.
12.2SX This command is supported in the Cisco IOS Release 12.2SX train. Support
i
n a specific 12.2SX release of this train depends on your feature set,
platform, and platform hardware.