MPLS TE with Multilink PPP failed

[w.susetio]

I have a problem setting MPLS TE in multilink PPP.

I setup 2xe1 PE to P connection using multilink PPP. Configuration for MPLS TE had been completely setup.

Tunnel MPLS was terminated at interface multilink at both end and also the rsvp had been attached to these interfaces.

PE1 ==== MPLS CORE --- PE2

The configuration seems like this:

mpls traffic-eng tunnels

interface Tunnel100

ip unnumbered Loopback0

tunnel destination 103.23.4.2 tunnel mode mpls traffic-eng

tunnel mpls traffic-eng autoroute announce

tunnel mpls traffic-eng priority 0 0

tunnel mpls traffic-eng bandwidth 100

tunnel mpls traffic-eng path-option 2 dynamic

tunnel mpls traffic-eng record-route

interface Multilink20

description MultiLink to 7513 Gandul

ip address 103.23.4.13 255.255.255.252

ip ospf authentication-key 7 xxxxx

ip ospf hello-interval 5

ip ospf dead-interval 15

mpls label protocol ldp

mpls traffic-eng tunnels

tag-switching mtu 1512

tag-switching ip

ppp multilink

ppp multilink interleave

no ppp multilink fragmentation

multilink-group 20

ip rsvp bandwidth

end

interface Serial3/0:0

no ip address

ip load-sharing per-packet

encapsulation ppp

fair-queue 64 16 48

ppp multilink

multilink-group 20

!

interface Serial3/1:0

no ip address

ip load-sharing per-packet

encapsulation ppp

ppp multilink

multilink-group 20

With this config the signalling stay down.

Name: PE-CLG-72_t100 (Tunnel100) Destination: 103.23.4.2

Status:

Admin: up Oper: down Path: not valid Signalling: Down

path option 2, type dynamic

Config Parameters:

Bandwidth: 100 kbps (Global) Priority: 0 0 Affinity: 0x0/0xFFFF

Metric Type: TE (default)

AutoRoute: enabled LockDown: disabled Loadshare: 100 bw-based

auto-bw: disabled

Shortest Unconstrained Path Info:

Path Weight: UNKNOWN

Explicit Route: UNKNOWN

History:

Tunnel:

Time since created: 1 hours, 4 minutes

Path Option 2:

Last Error: PCALC:: Local system ID has not been set

Thnks for any response.

[Harold Ritter]

Could you please let us know what version of code you are running and post the entire config for the tunnel head end router.

Thanks,

[w.susetio]

We are running 12.0(29)S.

[Harold Ritter]

Could you please also attach the config for the headend router.

BTW: I am running the same configuration without any issue.

Thanks,

[w.susetio]

Thanks haroild for advise.

Two points we were mising:

1. TE config on OSPF

2. IP rsvp config on Both of real interfaces

Now it works fine...

[Harold Ritter]

I don't think that the "ip rsvp bandwidth" statement on the physical interface is really required. I tested in my setup without it and it worked fine. It won't hurt though.

Glad to see the issue is solved,

[yacine1675]

hi ,

i have been troubleshooting the same issue for the last 2 days , i go the same message

*Mar  2 02:06:34.973: TE-PCALC_PATH: get_path: system_id not initialized!

R6#show mpls  traffic-eng tunnels

Name: R6_t1                               (Tunnel1) Destination: 1.1.1.1

  Status:

    Admin: up         Oper: down   Path: not valid   Signalling: Down

    path option 10, type dynamic

  Config Parameters:

    Bandwidth: 0        kbps (Global)  Priority: 7  7   Affinity: 0x0/0xFFFF

    Metric Type: TE (default)

    AutoRoute:  disabled  LockDown: disabled  Loadshare: 0        bw-based

    auto-bw: disabled

  History:

    Tunnel:

      Time since created: 1 days, 17 minutes

    Path Option 10:

      Last Error: PCALC:: Local system ID has not been set

R6#

i am using ISIS as routing  protocol , I dont know if is a bug with GNS3 or something  is wrong with my config wich i dont think so !!

can anybody help me please !

[apfuntilon]

Hi yacine1675. You may have missed setting up the traffic-eng router-id under the isis router config as indicated by the Local system ID has not been set message. Issuing the mpls traffic-eng router-id loopback n should do the trick.