Label Distribution Protocol
472
MPLS Guide
© 2022 Nokia.
Use subject to Terms available at: www.nokia.com
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ipv4
Syntax [no] ipv4
Context config>router>ldp>if-params
config>router>ldp>if-params>if
config>router>ldp>targeted-session
Description This command enables the context to configure IPv4 LDP parameters that apply to the
interface.
ipv6
Syntax [no] ipv6
Context config>router>ldp>if-params
config>router>ldp>if-params>if
config>router>ldp>targeted-session
Description This command enables the context to configure IPv6 LDP parameters applied to the
interface.
local-lsr-id
Syntax local-lsr-id {system | interface}
no local-lsr-id
Context config>router>ldp>if-params>if>ipv4
config>router>ldp>if-params>if>ipv6
Description This command enables the use of the address of the link LDP interface as the LSR ID in order
to establish an LDP adjacency and session with a directly connected LDP peer.
By default, the LDP session uses the system interface address as the LSR ID unless the LSR
ID is explicitly configured. This means that targeted LDP (T-LDP) and interface LDP share a
common LDP TCP session and therefore a common LDP label space. The system interface
must always be configured on the router or the LDP protocol will not come up on the node.
At initial configuration, the LDP session to the peer remains down while the interface is down.
If the user changes the LSR ID while the LDP session is up, LDP immediately tears down the
session and attempts to re-establish it using the new LSR ID. If the interface used for the local
LSR ID goes down, the LDP session will also go down.
The interface option is the recommended setting when static route-LDP synchronization is
enabled.
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