Alcatel-Lucent 7450 Manual page 656

Default
Parameters
label-withdrawal-delay
Syntax
Context
Description
Default
Parameters
mcast-upstream-frr
Syntax
Context
Description
Page 656
The no form of the command removes all policies from the configuration.
no import — No import route policies specified.
policy-name — The import route policy name. Allowed values are any string up to 32 characters long
composed of printable, 7-bit ASCII characters. If the string contains special characters (#, $,
spaces, etc.), the entire string must be enclosed within double quotes.
The specified name(s) must already be defined.
label-withdrawal-delay seconds
no label-withdrawal-delay
config>router>ldp
This command specifies configures the time interval, in seconds, LDP will delay for the withdrawal
of FEC-label binding it distributed to its neighbors when FEC is de-activated. When the timer
expires, LDP then sends a label withdrawal for the FEC to all its neighbors. This is applicable only to
LDP IPv4 prefix FECs and is not applicable to pseudowires (service FECs).
When there is an upper layer (user of LDP) which depends of LDP control plane for failover
detection then label withdrawal delay and tunnel-down-damp-time options must be set to 0.
An example is PW redundancy where the primary PW doesn't have its own fast failover detection
mechanism and the node depends on LDP tunnel down event to activate the standby PW.
no label-withdrawal-delay
seconds — Specifies the time that LDP delays the withdrawal of FEC-label binding it distributed to
its neighbors when FEC is de-activated.
Values 3 — 120
[no] mcast-upstream-frr
config>router>ldp
When LDP programs the primary ILM record in the data path, it provides the IOM with the This
command enables the mLDP fast upstream switchover feature.
When this command is enabled and LDP is resolving a mLDP FEC received from a downstream
LSR, it checks if an ECMP next-hop or a LFA next-hop exist to the root LSR node. If LDP finds one,
it programs a primary ILM on the interface corresponding to the primary next-hop and a backup ILM
on the interface corresponding to the ECMP or LFA next-hop. LDP then sends the corresponding
labels to both upstream LSR nodes. In normal operation, the primary ILM accepts packets while the
backup ILM drops them. If the interface or the upstream LSR of the primary ILM goes down causing
the LDP session to go down, the backup ILM will then start accepting packets.
7450 ESS MPLS Guide