From: mikem liu (mikemliu@hotmail.com)
Date: Sun Feb 23 2003 - 07:09:24 GMT-3
1. This situation is nothing deal with synchronization, cos routers can
receive route through IBGP whenever we enable sych or not, synchronization
only apply when a router is going send out that route or put the BGP route
in its routing table.
2. Check the next hop of the route is vaild or not(sh ip route). Make sure
the BGP route's next hop address is in your routing table...
3. From the show ip bgp on R3, I can tell, even the route on R3 for R7 and
R9 are not correct.., when BGP think a route is good, it will put a ' > 'on
that route...
mike
>From: Danny Andaluz <dannyandaluz@comcast.net>
>Reply-To: Danny Andaluz <dannyandaluz@comcast.net>
>To: Syv Ritch <syv@911networks.com>
>CC: ccielab@groupstudy.com
>Subject: Re: Re[2]: BGP Missing routes
>Date: Sat, 22 Feb 2003 20:39:15 -0500
>
>On router 3 you only have the network for the one loopback. How about the
>other?
>----- Original Message -----
>From: "Syv Ritch" <syv@911networks.com>
>To: "Danny Andaluz" <dannyandaluz@comcast.net>
>Sent: Saturday, February 22, 2003 7:38 PM
>Subject: Re[2]: BGP Missing routes
>
>
> > On Saturday, February 22, 2003, Danny Andaluz wrote:
> >
> > -----Original Message-----
> > DA> no synchronization?
> >
> > No, makes not difference, I have tried
> >
> > DA> ----- Original Message -----
> > DA> From: "Syv Ritch" <syv@911networks.com>
> > DA> To: <ccielab@groupstudy.com>
> > DA> Sent: Saturday, February 22, 2003 2:03 PM
> > DA> Subject: BGP Missing routes
> >
> >
> > >> Hi,
> > >>
> > >> I am missing some routes in BGP [sho ip bgp].
> > >>
> > >> The network is:
> > >>
> > >> R9 [65109] <--> R3 [65109] <--> R7 [65109]
> > >> ^ ^ ^
> > >> | | |
> > >> v v v
> > >> R5 [65110] <--> R2 [65110] <--> R6 [65110]
> > >>
> > >> R9 has 2 loopbacks: 10.108.99.99/24 and 10.108.199.199/24
> > >> R3 has 2 loopbacks: 10.108.33.33/24 and 10.108.133.133/24
> > >> and so on..
> > >>
> > >> All the routers peers through 99.99, 33.33 and so on..
> > >> Here is the config for R3
> > >>
> > >> router bgp 65109
> > >> bgp router-id 33.33.33.33
> > >> bgp cluster-id 174884229
> > >> bgp log-neighbor-changes
> > >> network 10.108.133.0 mask 255.255.255.0
> > >> neighbor ibgp peer-group
> > >> neighbor ibgp update-source Loopback0
> > >> neighbor ebgp peer-group
> > >> neighbor ebgp ebgp-multihop 2
> > >> neighbor ebgp update-source Loopback0
> > >> neighbor 10.108.22.22 remote-as 65110
> > >> neighbor 10.108.22.22 peer-group ebgp
> > >> neighbor 10.108.77.77 remote-as 65109
> > >> neighbor 10.108.77.77 peer-group ibgp
> > >> neighbor 10.108.99.99 remote-as 65109
> > >> neighbor 10.108.99.99 peer-group ibgp
> > >> !
> > >> All the other ones are similar
> > >>
> > >>
> > >> ----------------------------------------
> > >> When doing a show ip bgp on R9, I am missing the network from R7
> > >>
> > >> BGP table version is 3, local router ID is 99.99.99.99
> > >> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> > DA> internal
> > >> Origin codes: i - IGP, e - EGP, ? - incomplete
> > >>
> > >> Network Next Hop Metric LocPrf Weight Path
> > >> * i10.108.122.0/24 10.108.22.22 0 100 0 65110 i
> > >> * i10.108.133.0/24 10.108.33.33 0 100 0 i
> > >> *> 10.108.155.0/24 10.108.55.55 0 0 65110 i
> > >> * i 10.108.22.22 100 0 65110 i
> > >> * i10.108.166.0/24 10.108.22.22 100 0 65110 i
> > >> *> 10.108.199.0/24 0.0.0.0 0 32768 i
> > >> TS-2512#7
> > >>
> > >>
> > >> ----------------------------------------
> > >> When doing a show ip bgp on R7, I am missing the network from R9
> > >>
> > >> BGP table version is 3, local router ID is 77.77.77.77
> > >> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> > DA> internal
> > >> Origin codes: i - IGP, e - EGP, ? - incomplete
> > >>
> > >> Network Next Hop Metric LocPrf Weight Path
> > >> * i10.108.122.0/24 10.108.22.22 0 100 0 65110 i
> > >> * i10.108.133.0/24 10.108.33.33 0 100 0 i
> > >> * i10.108.155.0/24 10.108.22.22 100 0 65110 i
> > >> * i10.108.166.0/24 10.108.22.22 100 0 65110 i
> > >> *> 10.108.66.66 0 0 65110 i
> > >> *> 10.108.177.0/24 0.0.0.0 0 32768 i
> > >>
> > >>
> > >>
> > >> ----------------------------------------
> > >> When doing a show ip bgp on R3, I get all the routes that I am
>expecting
> > >>
> > >> BGP table version is 5, local router ID is 33.33.33.33
> > >> Status codes: s suppressed, d damped, h history, * valid, > best, i -
> > DA> internal
> > >> Origin codes: i - IGP, e - EGP, ? - incomplete
> > >>
> > >> Network Next Hop Metric LocPrf Weight Path
> > >> *> 10.108.122.0/24 10.108.22.22 0 0 65110 i
> > >> *> 10.108.133.0/24 0.0.0.0 0 32768 i
> > >> * i10.108.155.0/24 10.108.55.55 0 100 0 65110 i
> > >> *> 10.108.22.22 0 65110 i
> > >> *> 10.108.166.0/24 10.108.22.22 0 65110 i
> > >> * i 10.108.66.66 0 100 0 65110 i
> > >> * i10.108.177.0/24 10.108.77.77 0 100 0 i
> > >> * i10.108.199.0/24 10.108.99.99 0 100 0 i
> > >>
> > >>
> > >>
> > >>
> > >> --
> > >> Thanks
> > >> syv@911networks.com
> >
> >
> > --
> > Thanks
> > syv@911networks.com
> > When the network has to work
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