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MP-BGP VPN: same import/export target on the same PE router

  • 1.  MP-BGP VPN: same import/export target on the same PE router

    Posted 03-20-2013 07:46

    Hi All,

     

    I have this question: is it possible to configure (and have no problem) two or more VRF on the same PE with the same vrf-target import and export community?

     

    Thank you

    Antonio

     

     



  • 2.  RE: MP-BGP VPN: same import/export target on the same PE router

    Posted 03-20-2013 07:59
    Hello Antonio,

    What are you trying to achieve exactly from a service perspective?

    I suggest to have a look at this example:

    http://www.juniper.net/techpubs/en_US/junos12.3/topics/example/multicast-vpn-mbgp-extranets-configuring-solutions.html

    Thanks,
    Ato

    ___________________________________
    Accept as Solution = cool !
    Accept as Solution+Kudo = You are a Star !

    [paraphrasing master aarseniev]


  • 3.  RE: MP-BGP VPN: same import/export target on the same PE router

    Posted 03-20-2013 08:23

    Hi Ato,

     

    I had this problem: I was trying to rename a vrf instance in order to obtain 3 other RI from the original one.I was trying to keep the same vrf-target import/export at each other but different RD. Also I'm using local-as loop and indipendent-domain knobs.

     

    When I commited the configuration the RPD crashed. The router is a M320 with 10.4 release.

     

    I hope I was clear.

     

    Br

    Antonio

     



  • 4.  RE: MP-BGP VPN: same import/export target on the same PE router

    Posted 03-20-2013 08:32
    Hi Antonio,

    Sorry, it's unclear to me what you are trying to achieve from a service perspective. Why do you want 3 VRFs with the same RTs?

    Ato


  • 5.  RE: MP-BGP VPN: same import/export target on the same PE router

    Posted 03-20-2013 10:27

    Hi Ato,

     

    for a full-mesh connectivity. But focus on the question have you any idea about the RPD core?

     

     

    Br

    Antonio



  • 6.  RE: MP-BGP VPN: same import/export target on the same PE router

    Posted 03-20-2013 10:41
    Exotic configurations are more likely to trigger bugs. You can achieve full-mesh connectivity with a single VPN. And if you really want to have different VPNs, you can use extranet.


  • 7.  RE: MP-BGP VPN: same import/export target on the same PE router

    Posted 03-20-2013 10:49
    BTW you can import several targets in same VRF


  • 8.  RE: MP-BGP VPN: same import/export target on the same PE router

    Posted 03-21-2013 01:00

    Hi Antonio,

     

    Can you send the output of:

     

    show system core-dumps core-file-info <your_core_file>

     

    Ato



  • 9.  RE: MP-BGP VPN: same import/export target on the same PE router

    Posted 03-21-2013 02:46

    HI Ato,

     

     

    show system core-dumps core-file-info /var/tmp/rpd.core.1.gz

    'rpd' process terminated with signal 6 Aborted.

    Stack trace:
    #0  0x88fd3f53 in kill () from /usr/lib/libc.so.6
    #0  0x88fd3f53 in kill () from /usr/lib/libc.so.6
    #1  0x88ed8371 in raise () from /usr/lib/libthr.so.2
    #2  0x88fd2c7a in abort () from /usr/lib/libc.so.6
    #3  0x88faccea in __assert () from /usr/lib/libc.so.6
    #4  0x0862da6b in tag_dpvc_create_p2mp_pvc ()
    #5  0x082bf77e in tai_create_dynamic_tunnel ()
    #6  0x0879a816 in vpls_p2mp_router_id_changed ()
    #7  0x0879a89d in vpls_p2mp_router_id_changed ()
    #8  0x081d8892 in task_job_bg_dispatch ()
    #9  0x081c966a in main ()

    show system core-dumps core-file-info /var/tmp/rpd.core-tarball.1.tgz
    'rpd' process terminated with signal 6 Aborted.

    Stack trace:
    #0  0x88fd3f53 in kill () from /usr/lib/libc.so.6
    #0  0x88fd3f53 in kill () from /usr/lib/libc.so.6
    #1  0x88ed8371 in raise () from /usr/lib/libthr.so.2
    #2  0x88fd2c7a in abort () from /usr/lib/libc.so.6
    #3  0x88faccea in __assert () from /usr/lib/libc.so.6
    #4  0x0862da6b in tag_dpvc_create_p2mp_pvc ()
    #5  0x082bf77e in tai_create_dynamic_tunnel ()
    #6  0x0879a816 in vpls_p2mp_router_id_changed ()
    #7  0x0879a89d in vpls_p2mp_router_id_changed ()
    #8  0x081d8892 in task_job_bg_dispatch ()
    #9  0x081c966a in main ()


    Let me know if you find something

     

    Br

    Antonio



  • 10.  RE: MP-BGP VPN: same import/export target on the same PE router

    Posted 03-21-2013 03:10
    Doesn't match any known PR. What is the configuration change triggering the issue? Please attach complete config (as a file) and show | compare , before commit.


  • 11.  RE: MP-BGP VPN: same import/export target on the same PE router

    Posted 03-21-2013 03:31
      |   view attached

    Hi Ato

     

    I've attached a system compare.

     

    Thank you

     

    Antonio

    Attachment(s)

    txt
    MP-BGP VPN.txt   14 KB 1 version


  • 12.  RE: MP-BGP VPN: same import/export target on the same PE router

    Posted 03-21-2013 03:38

    I realize now that I've done some mistake during the changing of configuration.

     

    Maybe that mistake caused a RPD core 😞

     

     

    Antonio

     



  • 13.  RE: MP-BGP VPN: same import/export target on the same PE router
    Best Answer

    Posted 03-21-2013 04:19

    Looking at the core dump stack trace, and at the configuration change, it seems to be related to router ID changes. So a one-time core dump.

     

    ___________________________________
    Accept as Solution = cool !
    Accept as Solution+Kudo = You are a Star !
    /paraphrasing master Alex