Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753154Ab1BNULy (ORCPT ); Mon, 14 Feb 2011 15:11:54 -0500 Received: from oceanic.wsisiz.edu.pl ([213.135.44.33]:1241 "EHLO oceanic.wsisiz.edu.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751129Ab1BNULv (ORCPT ); Mon, 14 Feb 2011 15:11:51 -0500 X-Greylist: delayed 497 seconds by postgrey-1.27 at vger.kernel.org; Mon, 14 Feb 2011 15:11:51 EST Date: Mon, 14 Feb 2011 21:03:10 +0100 (CET) From: Lukasz Trabinski To: linux-kernel@vger.kernel.org Subject: net.ipv6.route.max_size Message-ID: User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; CHARSET=US-ASCII; format=flowed Content-ID: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1708 Lines: 47 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/