Network Engineering Asked on September 30, 2021
I have established a LDP session between routers r1
(lo0.0
has 192.168.1.1
configured) and r4
(lo0.0
has 192.168.1.4
configured). According to show route table inet.3 192.168.1.4
in r1
the BGP prefixes with the next-hop of 192.168.1.4
would use MPLS:
root@r1> show route table inet.3 192.168.1.4
inet.3: 4 destinations, 6 routes (4 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.168.1.4/32 *[LDP/9] 01:19:20, metric 1
> to 65.115.1.2 via ge-0/0/1.0, Push 300048
root@r1>
However, when I check the ingress LSPs, then there is no LSP to 192.168.1.4
:
root@r1> show mpls lsp ingress
Ingress LSP: 3 sessions
To From State Rt P ActivePath LSPname
192.168.1.5 192.168.1.1 Up 0 * ERO-through-R3 R1-to-R5
192.168.1.3 192.168.1.1 Up 0 * sub_lsp_to_R3
192.168.1.5 192.168.1.1 Up 0 * sub_lsp_to_R5
Total 3 displayed, Up 3, Down 0
root@r1>
Does the show mpls lsp
in Junos show only static and RSVP LSPs? Or am I missing something here?
Does the
show mpls lsp
in Junos show only static and RSVP LSPs? Or am I missing something here?
It's counter intuitive, but you're correct, only RSVP LSPs are shown with show mpls lsp
. It's basically tied to the fact that you configure RSVP LSPs under [protocols mpls]
, whereas with LDP, you don't.
Your best options for LDP are show ldp sessions
, show ldp neighbors
, and whatever your favorite variation of show route
is.
Correct answer by Jordan Head on September 30, 2021
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