Specifications

mpls ldp discovery
MP-212
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
mpls ldp discovery
To configure the interval between transmission of consecutive Label Distribution Protocol (LDP)
discovery hello messages, or the hold time for a discovered LDP neighbor, or the neighbors from which
requests for targeted hello messages may be honored, use the mpls ldp discovery command in global
configuration mode. To disable this feature, use the no form of this command.
mpls ldp discovery {he
llo {holdtime | interval} seconds | targeted-hello {holdtime | interval}
seconds | accept [from acl]}
no mpls ldp discovery {he
llo {holdtime | interval} | targeted-hello {holdtime | interval} | accept
[from acl]}
Syntax Description
Command Default None
Command Modes Global configuration (config)
Command History
hello Configures the intervals and hold times for directly connected neighbors.
holdtime Defines the period of time a discovered LDP neighbor is remembered
w
ithout receipt of an LDP hello message from the neighbor. The default
value for the holdtime keyword is 15 seconds for link hello messages and 90
seconds for targeted hello messages.
interval Defines the period of time between the sending of consecutive hello
m
essages.
The default value for the int
erval keyword is 5 seconds for link hello
messages and 10 seconds for targeted hello messages.
seconds Hold time or interval in seconds:
• The default hold time is 15 seconds for link hello messages and
90 seconds for targeted hello messages.
• The default interval is 5 seconds for link hello messages and 10 seconds
for targeted hello messages.
targeted-hello Configures the intervals and hold times for neighbors that are not directly
co
nnected (for example, LDP sessions that run between the endpoints of an
LSP tunnel).
accept Configures the router to respond to requests for targeted hello messages from
all n
eighbors or from neighbors specified by the optional acl argument.
from ac
l (Optional) The IP access list that specifies the neighbor from which requests
for targeted hello messages may be honored.
Release Modification
11.1CT This command was introduced.
12.0(10)ST This command was modified to reflect Multiprotocol Label Switching
(M
PLS) IETF command syntax and terminology.