Hi all,
Just playing around with a similar "simple" MPLS configuration, basically, copying Brian's configs in the ATC video.
Setup:
R1-R8 (AS100) - CORE with R7/R8 being the PE (one foot in MPLS, one foot in eBGP!)
R9 (AS9) - external
R10 (AS10) - external
eBGP R8-R10, eBGP R7-R9
Configured "mpls ldp autoconfig" on all internal/core router.
Created some dummy loopbacks on R9/R10 to generate some router.
Issue (or not):
I can see all of the internal/core prefix & loopbacks with associated labels (show mpls forw), but cannot see any of the prefixes/labels of the external eBGP routes from R9/R10.... however, routing works perfectly between AS9 and AS10... so it's working!
R7#sh mpls fo
Local Outgoing Prefix Bytes Label Outgoing Next Hop
Label Label or Tunnel Id Switched interface
16 Pop Label 150.1.6.6/32 0 Et0/1.67 155.1.67.6
17 Pop Label 155.1.146.0/24 0 Et0/1.67 155.1.67.6
18 20 155.1.0.5/32 0 Et0/1.67 155.1.67.6
19 21 155.1.0.4/32 0 Et0/1.67 155.1.67.6
20 No Label 155.1.0.3/32 0 Et0/1.37 155.1.37.3
21 18 155.1.0.1/32 0 Et0/1.37 155.1.37.3
23 155.1.0.1/32 0 Et0/1.67 155.1.67.6
22 24 150.1.8.8/32 0 Et0/1.67 155.1.67.6
23 25 150.1.5.5/32 0 Et0/1.67 155.1.67.6
24 26 150.1.4.4/32 0 Et0/1.67 155.1.67.6
25 Pop Label 150.1.3.3/32 0 Et0/1.37 155.1.37.3
26 26 150.1.2.2/32 0 Et0/1.37 155.1.37.3
27 21 150.1.1.1/32 0 Et0/1.37 155.1.37.3
29 150.1.1.1/32 0 Et0/1.67 155.1.67.6
28 30 155.1.108.0/24 0 Et0/1.67 155.1.67.6
29 31 155.1.8.0/24 0 Et0/1.67 155.1.67.6
30 32 155.1.5.0/24 0 Et0/1.67 155.1.67.6
31 34 155.1.58.0/24 0 Et0/1.67 155.1.67.6
32 36 155.1.45.0/24 0 Et0/1.67 155.1.67.6
33 Pop Label 155.1.23.0/24 0 Et0/1.37 155.1.37.3
34 Pop Label 155.1.13.0/24 0 Et0/1.37 155.1.37.3
R7#
My question:
Should I expect to see the eBGP routes and their associated labels anywhere on the PE?
I appreciate that the core is only bothered about getting the packet to the appropriate PE, however, I want to see that my dummy loopback routes are being tagged (which they obviously are).