MPLS and RSVP
7450 ESS MPLS Guide Page 89
The protection template is associated with a LSP as a part of the MEP on the protect path. If only
a working path is configured, then the protection template is not configured.
BFD cannot be enabled under the MEP context unless a named BFD template is configured.
Support for Downstream Mapping Information
In order to validate the downstream mapping for an LSP, a node sending a DSMAP TLV must
include the incoming and (optionally) outgoing IF_Num values for the interfaces that it expects
the LSP to transit. Additionally, it will include the out-label for the LSP in the Label TLV for the
DSMAP in the echo request message.
The incoming and outgoing if-num values correspond to the incoming and outgoing interfaces
transited by an LSP at the next hop LER and LSR are configured using the dsmap command, as
follows:
config
router
mpls
lsp
working-tp-path
mep
dsmap <in-if-num>[:<out-if-num>]
config
router
mpls
lsp
protect-tp-path
mep
dsmap <in-if-num>[:<out-if-num>]
config
router
mpls
mpls-tp
transit-path
forward-path
mip
dsmap <in-if-num>[:<out-if-num>]
exit
reverse-path
mip
dsmap <in-if-num>[:<out-if-num>]
exit
A node sending a DSMAP TLV will include these in-if-num and out-if-num (if configured)
values. Additionally, it will include the out-label for the LSP in the Label TLV for the DSMAP in
the echo request message.
To Next Page
Loading...
