From: hulbertj@comcast.net
Date: Thu May 26 2005 - 18:15:40 GMT-3
I could be wrong, (I usually am), but I thought that by default, the router would load-balance by flows, not packet, when 'maximum-paths X' is configured.
Jerry
-------------- Original message --------------
> Thanks James.
>
> But, what do you by "true" load-balancing?
>
> Are you referring to per destination vs per packet load-balancing?
>
> Tim
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> James Matrisciano
> Sent: Thursday, May 26, 2005 4:45 PM
> To: Troy Levin; ccie2be; Group Study
> Subject: RE: BGP load balancing
>
> Also, do not forget that as for true load balancing, BGP does not load
> balance. You may want to look into something like an HSRP design where
> you point half the network one way with a fail over and the other half
> the other route with a fail over.
>
>
>
> jm
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Troy Levin
> Sent: Thursday, May 26, 2005 4:13 PM
> To: ccie2be; Group Study
> Subject: Re: BGP load balancing
>
> Tim,
>
> Did you try this command?
>
> maximum-paths ibgp
> To configure the number of number of equal-cost or unequal-cost routes
> that
> internal BGP (iBGP) will install in the routing table, use the
> maximum-paths
> ibgp command in router configuration mode. To restore the default value,
> use
> the no form of this command.
>
>
>
> HTH,
>
> Troy
>
> ----- Original Message -----
> From: "ccie2be"
> To: "Group Study"
> Sent: Thursday, May 26, 2005 3:54 PM
> Subject: BGP load balancing
>
>
> > Hi guys,
> >
> > R2 is learning a default route from 2 ibgp peers. I want R2 to load
> > balance
> > traffic to destinations beyond its ibgp peers between the 2 ibgp
> peers.
> >
> > I configured the command, maximum-paths 2, on R2, but the default
> route
> > only
> > shows up once in the route table although, as you can see, it's shown
> > twice
> > in the bgp table. Also note that R2 can ping both next hops shown in
> the
> > bgp table.
> >
> > What am I missing?
> >
> > TIA, Tim
> >
> > R2#sh ip bgp sum
> > BGP router identifier 150.7.2.2, local AS number 200
> > BGP table version is 77, main routing table version 77
> > 2 network entries using 202 bytes of memory
> > 4 path entries using 192 bytes of memory
> > 2 BGP path attribute entries using 120 bytes of memory
> > 1 BGP AS-PATH entries using 24 bytes of memory
> > 0 BGP route-map cache entries using 0 bytes of memory
> > 0 BGP filter-list cache entries using 0 bytes of memory
> > BGP using 538 total bytes of memory
> > BGP activity 17/15 prefixes, 56/52 paths, scan interval 60 secs
> >
> > Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down
> > State/PfxRcd
> >
> > 145.7.245.4 4 200 1306 1307 77 0 0 00:00:54
> > 2
> > 145.7.245.5 4 200 812 817 77 0 0 00:02:02
> > 2
> > R2#sh ip bgp
> > BGP table version is 77, local router ID is 150.7.2.2
> > Status codes: s suppressed, d damped, h history, * valid, > best, i -
> > internal,
> > r RIB-failure, S Stale
> > Origin codes: i - IGP, e - EGP, ? - incomplete
> >
> > Network Next Hop Metric LocPrf Weight Path
> > *>i0.0.0.0 145.7.47.7 0 100 0 100 i
> > * i 150.7.3.3 0 100 0 100 i
> > *>i145.7.0.0 145.7.47.7 0 100 0 100 i
> > * i 150.7.3.3 0 100 0 100 i
> > R2#sir bgp
> > 145.7.0.0/16 is variably subnetted, 9 subnets, 3 masks
> > B 145.7.0.0/16 [200/0] via 145.7.47.7, 00:01:26
> > B* 0.0.0.0/0 [200/0] via 145.7.47.7, 00:01:26
> > R2#f bgp
> > router bgp 200
> > no synchronization
> > bgp router-id 150.7.2.2
> > bgp log-neighbor-changes
> > neighbor 145.7.245.4 remote-as 200
> > neighbor 145.7.245.4 route-reflector-client
> > neighbor 145.7.245.5 remote-as 200
> > neighbor 145.7.245.5 route-reflector-client
> > maximum-paths 2
> > no auto-summary
> >
> >
> _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Fri Jun 03 2005 - 10:12:02 GMT-3