CANOGA PERKINS CanogaOS Command Reference - Manual (Page 478)

CanogaOS Command Line Reference Revision 1.02
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25.19 explicit-null
Use this command to configure the router to send explicit-null labels for directly connected FECs
instead of implicit-null labels. Implicit-nulls are the default labels
Note:
Do not use this command if the LDP is currently being used for MPLS/BGP
VPNs.Use the no parameter to stop sending explicit-null labels for directly
connected FECs, and resume sending implicit-null labels for them.
Command Syntax
(no) explicit-null
Syntax Description
This command has no arguments or keywords.
Command Mode
Router mode
Defaults
Sends implicit-null labels.
Examples
In the following example, the explicit-null command is used to send explicit-null labels for directly
connected FECs instead of implicit-null labels:
Switch# configure terminal
Switch(config)# router ldp
Switch(config-router)# explicit-null
Related Commands
show ldp FEC