Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 979)

Multi-Service IronWare Switching Configuration Guide 949
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Configuring BFD for RSVP-TE LSPs
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The transmit-time variable is the interval in milliseconds during which this device sends a BFD
message to the peer informing it that it is still operational. Acceptable values are 50 - 30000. The
default value is 1000 (unless changed at the global level).
The receive-time variable is the interval in milliseconds the device waits to receive a BFD message
from the peer. The device waits for the number of times specified in the number variable before
determining that the connection to the peer in not operational. Acceptable values are 50 - 30000.
The default value is 1000 (unless changed at the global level).
The multiplier option allows you to specify a value for the number of times in a single sequence that
this device will wait to receive a BFD message from the peer before determining that the
connection to that peer is not operational. This value is set at the number variable. Acceptable
values are 3 - 50. The default value is 3.
The no option globally removes the BFD for RSVP-TE LSPs configuration from the device.
NOTE
BFD parameters configured globally can be changed dynamically without affecting the operational
status of the LSP and the BFD session. When you make changes to the global configuration, the
changes are applied to all egress MPLS BFD sessions. and only to the ingress BFD sessions with
parameters that are derived from the global configuration.
Enabling BFD for a specific RSVP-TE LSP
When you configure BFD globally, you must also configure it locally for the individual LSPs on which
you want it to operate. You can also set separate values for the transmit interval, receive interval,
and for the detection time multiplier for the specified LSP. The following example enables BFD for
the LSP named blue and sets new parameter values.
Brocade(config)# router mpls
Brocade(config-mpls)# lsp blue
Brocade(config-mpls-lsp-blue)# bfd
Brocade(config-mpls-lsp-blue-bfd)# min-tx 500 min-rx 500 multiplier 5
Syntax: [no] min-tx transmit-time min-rx receive-time multiplier number
The transmit-time variable is the interval in milliseconds during which this device sends a BFD
message to the peer announcing that it is still operational. Acceptable values are 50 - 30000. The
default value is 1000 (unless changed at the global level).
The receive-time variable is the interval in milliseconds this device waits to receive a BFD message
from the peer. The device waits for the number of times specified in the number variable before
determining that the connection to the peer is not operational. Acceptable values are 50 - 30000.
The default value is 1000 (unless changed at the global level).
The multiplier option allows you to specify a value for the number of times in a single sequence that
this device waits to receive a BFD message from the peer before determining that the connection
to that peer is not operational. This value is set at the number variable. Acceptable values are 3 -
50. The default value is 3.
The no option globally removes the BFD for RSVP-TE LSPs configuration from the device.
NOTE
BFD parameters configured for a specific LSP can be changed dynamically without affecting the
operational status of the LSP and the BFD session.
Using this command you can also configure BFD for the secondary path of an LSP as shown in the
following example.