Messages in this thread | | | Date | Tue, 15 Feb 2011 16:29:20 -0900 (AKST) | From | "Mr. James W. Laferriere" <> | Subject | Re: [kernel] net.ipv6.route.max_size |
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Hello Lukasz , Since I have not seen anyone else suggest this or to do so I'll forward this onto the NetDev <netdev@vger.kernel.org> list for their perusal as well .
Hth , JimL
On Mon, 14 Feb 2011, Lukasz Trabinski wrote: > Hello > > IPv6 route table size is still growing. In stanard linux box configuration > with IPv6 BGP session (with ipv6 world table) and BGP application like > Quagga, > we have problem like this: > > 2011/02/12 18:43:52 ZEBRA: netlink-cmd error: Cannot allocate memory, > type=RTM_NEWROUTE(24), seq=11124600, pid=0 > > This problem shows us that's all prefixes comes from BGP can't be install > into FIB > > IN BGP application we can see, that's we recive 4484 prefixes from ipv6 > neighbor: > > cosmos> show bgp summary > Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down > State/PfxRcd > 2001:1a68:0:c::1 > 4 24724 431945 70172 0 0 0 2d01h18m 4484 > > > I suggest that net->ipv6.sysctl.ip6_rt_max_size should be increase. > Below _simple_ patch for this problem. I don't understand why in ipv4/route > we have different method to count ip4_rt_max_size? My value 65536 in near > future will be also wrong. I know also, that we can change it by sysctl, but > I thing that it's not good way to fix it. > > > --- route.c~ 2011-02-14 20:26:12.000000000 +0100 > +++ route.c 2011-02-14 20:30:04.000000000 +0100 > @@ -2708,7 +2708,7 @@ > #endif > > net->ipv6.sysctl.flush_delay = 0; > - net->ipv6.sysctl.ip6_rt_max_size = 4096; > + net->ipv6.sysctl.ip6_rt_max_size = 65536; > net->ipv6.sysctl.ip6_rt_gc_min_interval = HZ / 2; > net->ipv6.sysctl.ip6_rt_gc_timeout = 60*HZ; > net->ipv6.sysctl.ip6_rt_gc_interval = 30*HZ; > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
-- +------------------------------------------------------------------+ | James W. Laferriere | System Techniques | Give me VMS | | Network&System Engineer | 3237 Holden Road | Give me Linux | | babydr@baby-dragons.com | Fairbanks, AK. 99709 | only on AXP | +------------------------------------------------------------------+
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