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Cisco MWR 2941 Mobile Wireless Edge Router Release 3.5 Command Reference, Cisco IOS Release 15.1(3)MR
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Chapter Cisco MWR 2941 Router Command Reference, Release 15.1(3)MR
mpls ip (interface configuration)
Usage Guidelines MPLS forwarding of IPv4 packets along normally routed paths is sometimes called dynamic label
switching. If dynamic label switching has been enabled for the platform when this command is issued
on an interface, label distribution for the interface begins with the periodic transmission of neighbor
discovery Hello messages on the interface. When the outgoing label for a destination routed through the
interface is known, packets for the destination are labeled with that outgoing label and forwarded
through the interface.
The no form of this command causes packets routed out through the interface to be sent unlabeled; this
form of the command also terminates label distribution for the interface. However, the no form of the
command does not affect the sending of labeled packets through any link-state packet (LSP) tunnels that
might use the interface.
For an LC-ATM interface, the no form of this command prevents the establishment of label virtual
circuits (LVCs) beginning at, terminating at, or passing through the interface.
Examples The following example shows that label switching is enabled on the specified Ethernet interface:
Router(config)# configure terminal
Router(config-if)# interface e0/2
Router(config-if)# mpls ip
Related Commands Command Description
mpls ldp maxhops Limits the number of hops permitted in an LSP established by the
Downstream on Demand method of label distribution.
show mpls interfaces Displays information about one or more interfaces that have been configured
for label switching.
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