ExtremeSwitching (EXOS)

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BGP community not being sent

  • 1.  BGP community not being sent

    Posted 12-15-2015 15:15
    not showing the /32 being advertise but the other /24 in seq 20 are being advertised whats missing for the /32 to be sent out ?

    configure bgp add network 31.91.192.143 255.255.255.255
    create access-profile blackholes type ipaddress

    configure access-profile blackholes add 10 ipaddress 31.91.192.143 /32 exact

    configure route-map xo-rm add 10 permit
    configure route-map xo-rm 10 add match nlri-list blackholes
    configure route-map xo-rm 10 add set community 2828 : 1650
    configure route-map xo-rm add 20 permit
    configure route-map xo-rm 20 add match nlri-list level3-net

    conf bgp neighbor 202.112.52.105 route-map-filter out xo-rm
    configure bgp neighbor 202.112.52.105 send-community

    show transmitted routes show all the /24 but not the /32 with the set community whats missing here ?


  • 2.  RE: BGP community not being sent

    Posted 12-16-2015 04:25
    Hi Joseph,
    I think you pasted cisco config.

    I EXOS if you want add & send blackhole route through BGP you need to add the blackhole route
    through CLI .
    Please do the below mentioned steps.

    1.Add CLI "configure iproute add blackhole 10.0.0.1/32 .
    2.Create a policy then add set community "2828 : 1650".
    3.Mpa the policy through network command.
    4.configure bgp add network 10.0.0.1/32 network-policy ext2
    5.In BGP config you need to add configure bgp neighbor [i] send-community both.
    I think you missed this.
    For extended community we need to mention this command or we need to add send-community extended.
    By default EXOs will send standard communuity alone.

    * (Engineering) X670G2-72x.256 # sh bgp neighbor 50.0.0.2 transmitted-routes detail all
    Advertised Routes:
    Route: 10.0.0.1/32, Active
    Origin IGP, Next-Hop 50.0.0.1, MED 0
    As-PATH: 1
    Community: 185337458

    Hope this helps.

    -Senthil.M



  • 3.  RE: BGP community not being sent

    Posted 12-17-2015 00:56
    hi thank you for the answer this is extremeWare 7.2 configuration ,
    1 cant add blackhole on the /32 i get an error "IP" is directly attached to local subnet (255.255.255.255)its part of the vlan
    2 configure route-map xo-rm 10 add set community 2828 : 1650
    3 added the policy via "conf bgp add network 31.91.192.143/32 xo-rm "
    4
    5 no BOTH is avaiable on 7.2 we got " conf bgp neighbor 202.112.52.105 send-community

    only change is the mapping on number 3 , and its still not seem to be sending the /32 after soft-reset out
    thanks in advanace for the help


  • 4.  RE: BGP community not being sent

    Posted 12-17-2015 04:11
    Hello Joseph,

    Can you please try this config in CLI mode.
    Meanwhile I will try to get help for extreme ware configuration.

    -Senthil.M


  • 5.  RE: BGP community not being sent

    Posted 12-17-2015 05:30
    whats cli mode ? and what config should i try ? what i pasted is what i have in


  • 6.  RE: BGP community not being sent

    Posted 12-17-2015 06:13
    Hello Joseph,

    Sorry for the confusion.
    CLI mode is the one which you are working now.
    I just confirmed these commands are older version & its updated now.
    Extremeware product also goes end of life.

    As per your command we need not to go for extended communities/both command.
    I guess extended communities is not available in extremeware 7.0.

    Can you please try with these command alone & check whether its working.

    configure route-map xo-rm 10 add set community 2828 : 1650
    conf bgp add network 31.91.192.143/32 xo-rm
    conf bgp neighbor 202.112.52.105 send-community

    -Senthil.M



  • 7.  RE: BGP community not being sent

    Posted 12-17-2015 14:10
    hi senthil
    here is the config i have already in ,what i do see is the second route-map seq is being advertised all the /24 are there but seq 10 with the /32 and the set community is not , comparing this to cisco we do miss a NULL0 route on the /32 but when trying to add blackhole iproute on the /32 i get an error that its part of the vlan , so maybe the fix is adding another type of null route on the /32 ?

    configure route-map xo-rm add 10 permit
    configure route-map xo-rm 10 add match nlri-list blackholes
    configure route-map xo-rm 10 add set community 2828 : 1650
    configure route-map xo-rm add 20 permit
    configure route-map xo-rm 20 add match nlri-list level3-net

    configure bgp add network 38.96.190.143 255.255.255.255 xo-rm
    configure bgp neighbor 207.110.52.105 send-community

    create access-profile "blackholes" type ipaddress
    configure access-profile "blackholes" add 10 permit ipaddress 38.96.190.143/32 exact
    configure access-profile "blackholes" add 15 permit ipaddress 66.246.45.6/32 exact

    thank you


  • 8.  RE: BGP community not being sent

    Posted 12-18-2015 04:12
    Hi,
    I'm not sure about this config.
    After adding "66.246.45.6/32" whether BGP send 38.96.190.143/32 with community to its peer.?

    -Senthil.M


  • 9.  RE: BGP community not being sent

    Posted 12-18-2015 14:24
    no it doesnt ,transmitted routes shows only the /24 which are the seq 20 on the route map but not the /32 can i email the whole config for you to look at


  • 10.  RE: BGP community not being sent

    Posted 12-18-2015 14:33
    ExtremeWare 7.2 is very old software. This sounds like a limitation or bug. Before attempting to do any troubleshooting, I would highly recommend upgrading to the latest 7.8.4 version.
    What switch model is this?


  • 11.  RE: BGP community not being sent

    Posted 12-18-2015 15:35
    BD6808

    Image : Extremeware Version 7.8.1.1 [ssh] [wlan] by Release_Master on 05/23/08 10:31:31

    BootROM : 8.2



  • 12.  RE: BGP community not being sent

    Posted 12-19-2015 15:48
    hi drew, now that we ruled out a bug since i am running 7.8.1.1 any other suggestion as far as config change ?
    will summery only kill any /32 advertisement ?
    configure bgp add aggregate-address 38.96.190.0 255.255.254.0 summary-only
    configure bgp add network 38.96.190.143 255.255.255.255 route-map xo-rm
    does those negate each other ?



  • 13.  RE: BGP community not being sent

    Posted 12-20-2015 07:47
    I (really) don't know how ExtremeWare was working with BGP. If it was similar to current EXOS, then your aggregate-address would be the only one advertised for all matching routes. You need an active matching route in your RIB for it to work.


  • 14.  RE: BGP community not being sent

    Posted 12-24-2015 15:53
    can you show an example on the configuration i sent here on top please , want to try anything at this point ,nothing worked so far
    thanks


  • 15.  RE: BGP community not being sent

    Posted 12-25-2015 03:46
    Hi joseph,
    As stephane mentioned the /32 prefix should be active in route table.
    Then only BGP can transmits that prefix to its peer.
    Exrtemeware is old version some of us are not familiar with it.
    This route map functionality for /32 prefix with community may not be work in your version or
    it might be a bug.(As drew mentioned)


    Since this query is looping for a while we suggest you to check some older version command reference guide & Concepts guide.
    This guides belongs to higher version than extremeware.
    You may get a info about your query.


    I pasted the link.

    https://www.extremenetworks.com/wp-content/uploads/2014/03/EXOSReference_bookmap.pdf

    https://www.extremenetworks.com/wp-content/uploads/2014/03/EXOS_Concepts_Guide_15_3_2.pdf

    Meanwhile you may paste the entire config I will check.
    since it is very older version not sure we can get a solution.
    Any we will try to resolve or to have any work around for this issue.

    Please attach or paste your version command reference guide.

    -Senthil.M



  • 16.  RE: BGP community not being sent

    Posted 12-25-2015 04:23
    Thank you for the reply I am sure there is something missing in the confirm that prevent it from being sent out I'll paste the whole thing shortly or you prefer me emailing it to you directly