Alcatel-Lucent 7450 Manual page 91

could result in undesired behavior, for example an unexpected protection switching event. It is
therefore recommended that in these circumstances, user of the system exercise care in modifying
the BFD timer values after a BFD session is UP.
Commands within the BFD-template use a begin-commit model. To edit any value within the
BFD template, a begin needs to be executed once the template context has been entered. However,
a value will still be stored temporarily until the commit is issued. Once the commit is issued,
values will actually be used by other modules like the mpls-tp module and BFD module.
A BFD template is referenced from the OAM template. The OAM Template is configured as
follows:
config
router
mpls
•
•
•
An OAM template is then applied to a MEP as described above.
Protection templates and Linear Protection Configuration
Protection templates defines the generally applicable protection parameters for an MPLS-TP
tunnel. Only linear protection is supported, and so the application of a named template to an
MPLS-TP tunnel implies that linear protection is used.
A template is configured as follows:
config
router
mpls
7450 ESS MPLS Guide
mpls-tp
[no] oam-template <name>
[no] bfd-template <name>
[no] hold-time-down <interval>
[no] hold-time-up <interval>
exit
hold-time-down interval: 0-5000 deciseconds, 10ms steps, default 0. This is equivalent to
the standardized hold-off timer.
hold-time-up interval: 0-500 centiseconds in 100ms steps, default 2 seconds This is an
additional timer that can be used to reduce BFD bouncing.
bfd-template name: This is the named BFD template to use for any BFD sessions enabled
under a MEP for which the OAM template is configured.
mpls-tp
protection-template <name>
[no] revertive
[no] wait-to-restore <interval>
rapid-psc-timer <interval>
slow-psc-timer <interval>
exit
MPLS and RSVP
Page 91