Configures an IP address to be used as the LSR ID for the LDP identifier.
The LSR-ID is the first available loopback interface address.
MPLS LDP configuration mode
You can configure only an IPv4 address.
Use the no form of the command to reset the default behavior. When you enter the no form of the command and LDP protocol is in the enabled state, the device uses the same LSR-ID until the LDP protocol is disabled; the IP address selected as LSR-ID for the LDP protocol is still valid and is the operationally UP IP address on an enabled loopback interface.
When you enter the no form of the command and LDP protocol is in the disabled state (this happens when the loopback interface on which IP address is configured is in the disabled state), the device falls back to default behavior which tries to enable LDP protocol when it finds a valid IP address on any one of the enabled loopback interfaces.
MPLS is supported on the Extreme 8820, SLX 9740, SLX 9640, and SLX 9540 devices only.
The following example configures an IP address for the LSR identifier.
device# configure terminal device(config)# router mpls device(config-router-mpls)# ldp device(config-router-mpls-ldp)# lsr-id 10.22.22.22