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SDP's staying operationally down

Posted: 24 Feb 2015 11:39
by mstride
Bit of a newb with Alcatel routers. I am trying to replace old hardware with 7705 SAR 8's and a SAR 18. I believe I have OSPF installed correctly, as well as RSVP-TE. I've set up several LSP's and they are all up. I can perform lsp-ping's and lsp-traces without errors.
When I tried installing my SDP's however they are administrativly up, but operationally down. When I do a show > service > sdp detail, my sdp's as stated all show operationally down. The lsp's they are associated with are all showing up and Flags is showing TldpSessDown.

Anyone have any ideas?
I'm a bit concerned that the problem may be something lower, and I'm assuming that if my lsp's are up/up that they are configured correctly and therefore the problem is something with the configuration of my SDP tunnels. My setup does have 2 parallel network paths between two of the routers, and two seperate pairs of SDP tunnels to a remote router.
I've attatched a pdf showing my configuration. Routers A, B and C are all in different locations from one another and routers A and B have parallel trunks. Customer data on the High Bandwidth trunk has to use the High Bandwidth trunk between A and B, and then both high and low speed trunks combine between B and C.

I've setup lsp's as follows (for the lowspeed path from A to C):
path pAToCLS
hop 1 strict
hop 2 strict
no shutdown

lsp lAToCLS
primary pAToCLS
no shut down

configure service
sdp mpls 10 create
description "To C LS"
lsp lAToCLS
no shutdown

All of the LSP's and SDP's are configured similarly.
Any help would be very much appreciated. I've been banging my head on this one for a couple of days now.
Thank You

Re: SDP's staying operationally down

Posted: 24 Feb 2015 15:51
by rekeds
is ldp configured?

I don't like to download stuff from the net :[

it would be better to paste the config in [ code ] tags.

do some show ldps/rsvp, show mpls lsp details, show service sdp details,

Re: SDP's staying operationally down

Posted: 25 Feb 2015 09:07
by mstride
ok, I feel stupid. Conigured LDP on all of the routers and my SDP's all came up.
With the reading I did on which protocol to use, I was under the impression the LDP was not required, only RSVP needed .

Re: SDP's staying operationally down

Posted: 11 Mar 2015 07:07
by rekeds
I'm a newbie too, but from what I understand - ldp is the foundation, you have to enable it.
but when you define sdp, you issued command "LSP xxx" not "ldp" so mpls uses rsvp for signaling :]

but I might be wrong.

Re: SDP's staying operationally down

Posted: 11 Jul 2018 01:04
by plawansai
Could I verify by "oam lsp-ping prefix 10.x.0.101/32" command :?:

And for neighbor doesn't connected, does it need "ldp targeted-session" configuration?

Thank you very much.