[j-nsp] layer 3 vpn issue

[Doug Marschke]

Show route-receive protocol bgp <neighbor> to make sure the BGP
next-hop is equal to the LSP end point?



-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Amos Rosenboim
Sent: Friday, March 23, 2007 8:18 AM
To: juniper-nsp at puck.nether.net
Subject: [j-nsp] layer 3 vpn issue

Hi

I have configured an network of 4 M10i routers for mpls using RSVP  
for label distribution.
the topology is as follows:

R1----E3 line----R2----Ethernet----R3-----3xE1----R4

I have configured a test VRF on all 4 routers and associated a  
loopback unit in each router to the test VRF.
I have ping between all loopbacks inside the VRF on R1,R2 and R3, but  
not to R4.

My LSP seems to be working (show mpls lsp on R4 shows all LSP are up,  
and I get successful MPLS ping using the ping mpls rsvp command).
However, when I use the show mpls lsp detail command I see the lsp as  
up, but active routes is 0.

Also when I'm tracing to the remote PE I don't see any labels on the  
trace. I believe that my BGP traffic does not use the LSP as the  
egress point towards the remote PE, although the RSVP route is the  
preferred route in inet.3

Below are some show commands from R4. any help would be appreciated.


Regards


Amos



{master}
oasis at M10i-THESS1-re0> show mpls lsp
Ingress LSP: 3 sessions
To              From            State Rt ActivePath       P     LSPname
217.69.0.2      217.69.0.3      Up     0                  *     TO- 
ATH-FROM-THESS
217.69.0.4      217.69.0.3      Up     0                  *     TO- 
MED-FROM-THESS
217.69.0.5      217.69.0.3      Up     0                  *     TO- 
LND-FROM-THESS
Total 3 displayed, Up 3, Down 0

Egress LSP: 3 sessions
To              From            State   Rt Style Labelin Labelout  
LSPname
217.69.0.3      217.69.0.5      Up       0  1 FF       3        - TO- 
THESS-FROM-LND
217.69.0.3      217.69.0.2      Up       0  1 FF       3        - TO- 
THESS-FROM-ATH
217.69.0.3      217.69.0.4      Up       0  1 FF       3        - To- 
THESS-FROM-MED
Total 3 displayed, Up 3, Down 0

Transit LSP: 0 sessions
Total 0 displayed, Up 0, Down 0

{master}
oasis at M10i-THESS1-re0> show mpls lsp name TO-LND-FROM-THESS detail
Ingress LSP: 3 sessions

217.69.0.5
   From: 217.69.0.3, State: Up, ActiveRoute: 0, LSPname: TO-LND-FROM- 
THESS
   ActivePath:  (primary)
   LoadBalance: Random
   Encoding type: Packet, Switching type: Packet, GPID: IPv4
*Primary                    State: Up
     SmartOptimizeTimer: 180
     Computed ERO (S [L] denotes strict [loose] hops): (CSPF metric:  
524)
217.69.0.133 S 217.69.0.70 S 217.69.0.130 S
     Received RRO (ProtectionFlag 1=Available 2=InUse 4=B/W 8=Node  
10=SoftPreempt):
           217.69.0.133 217.69.0.70 217.69.0.130
Total 1 displayed, Up 1, Down 0

Egress LSP: 3 sessions
Total 0 displayed, Up 0, Down 0

Transit LSP: 0 sessions
Total 0 displayed, Up 0, Down 0

{master}
oasis at M10i-THESS1-re0> show bgp summary
Groups: 1 Peers: 3 Down peers: 0
Table          Tot Paths  Act Paths Suppressed    History Damp  
State    Pending
bgp.l3vpn.0            8          8          0          0           
0          0
Peer               AS      InPkt     OutPkt    OutQ   Flaps Last Up/ 
Dwn State|#Active/Received/Damped...
217.69.0.2      16022      45274      45287       0       1      
2w1d16h Establ
   bgp.l3vpn.0: 5/5/0
   VRF-TESTING.inet.0: 2/2/0
   VRF-THESS.inet.0: 3/3/0
217.69.0.4      16022      45248      45272       0       1      
2w1d16h Establ
   bgp.l3vpn.0: 0/0/0
217.69.0.5      16022      20450      20437       0       4       
1w0d2h Establ
   bgp.l3vpn.0: 3/3/0
   VRF-TESTING.inet.0: 2/2/0
   VRF-THESS.inet.0: 1/1/0

{master}
oasis at M10i-THESS1-re0> show route 217.69.0.5

inet.0: 129 destinations, 172 routes (128 active, 0 holddown, 1 hidden)
+ = Active Route, - = Last Active, * = Both

217.69.0.5/32      *[OSPF/10] 1d 01:32:15, metric 54
                       via e1-1/3/0.0
                       via e1-1/3/2.0
                     > via e1-1/3/4.0
                     [IS-IS/169] 1d 01:32:15, metric 544
                     > to 217.69.0.133 via e1-1/3/0.0
                       to 217.69.0.145 via e1-1/3/2.0
                       to 217.69.0.149 via e1-1/3/4.0

inet.3: 109 destinations, 112 routes (109 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

217.69.0.5/32      *[RSVP/7] 1d 01:32:20, metric 54
                     > via e1-1/3/0.0, label-switched-path TO-LND- 
FROM-THESS
                     [OSPF/10] 1d 01:32:20, metric 54
                     > via e1-1/3/0.0, label-switched-path TO-LND- 
FROM-THESS

{master}
oasis at M10i-THESS1-re0>




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