Table of Contents
Advertisement
MPLS and RSVP-TE
The entropy-label command under the config>router>mpls and
config>router>mpls>lsp contexts provides local control at the head end of an LSP
over whether the entropy label is inserted on an LSP by overriding the entropy label
capability signaled from the far-end LER, and control over how the additional label
stack depth is accounted for. This allows the user to avoid entropy label insertion
where there is a risk of the label stack depth becoming too great.
For entropy labels that are supported on LDP tunnels with remote-LFA protection
(that is, for rsvp-shortcut), only loop-free alternate protect (lfa-protect) and LFA
(lfa-only) are allowed.
Support of entropy labels over RSVP-TE and SR-TE tunnels are the only valid
options, except when the 7705 SAR is the LER node with BGP labeled unicast (BGP-
LU) tunnels. A 7705 SAR in an LER role can push and pop an entropy label for Epipe
and VPLS services with a BGP-LU tunnel riding over an RSVP-TE LSP. Conversely,
a 7705 SAR does not support being in an ABR or ASBR role with BGP-LU.
lists entropy label support on the 7705 SAR.
Table 5
28
Summary of Entropy Label Support
Service
Epipe
Ipipe
Cpipe
Apipe, Fpipe, Hpipe
VPRN (MP-BGP)
VPRN (Layer 3 spoke SDP)
IES (Layer 3 spoke SDP)
VPLS SDP (spoke/mesh SDP)
LDP over IGP shortcut (RSVP)
IGP shortcut (SR)
LDP FRR over RSVP
LDP stitching over SR (SR to LDP)
LDP stitching over SR (LDP to SR)
BGP LU
SR
Use subject to Terms available at: www.nokia.com
RSVP-TE
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
N/A
Yes
N/A
No
2
Yes
No
© 2022 Nokia.
MPLS Guide
Table 5
SR-TE
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
N/A
No
N/A
1
Yes
No
2
Yes
Yes
3HE 18686 AAAB TQZZA
Advertisement
Table of Contents
