From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31724 invoked by alias); 20 Jun 2007 05:40:04 -0000 Received: (qmail 31715 invoked by uid 22791); 20 Jun 2007 05:40:02 -0000 X-Spam-Check-By: sourceware.org Received: from alnrmhc13.comcast.net (HELO alnrmhc13.comcast.net) (206.18.177.53) by sourceware.org (qpsmtpd/0.31) with ESMTP; Wed, 20 Jun 2007 05:40:00 +0000 Received: from [192.168.1.200] (c-67-188-0-30.hsd1.ca.comcast.net[67.188.0.30]) by comcast.net (alnrmhc13) with ESMTP id <20070620053959b1300o1lnfe>; Wed, 20 Jun 2007 05:39:59 +0000 Message-ID: <4678CB99.5000302@ds3switch.com> Date: Wed, 20 Jun 2007 13:12:00 -0000 From: Tad User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: ecos-discuss@sources.redhat.com References: <46783A66.4040503@ds3switch.com> <20070619192426.GF24842@lunn.ch> In-Reply-To: <20070619192426.GF24842@lunn.ch> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Subject: Re: [ECOS] Is arpresolve() good to get ARP started on an IP address? X-SW-Source: 2007-06/txt/msg00214.txt.bz2 Andrew Lunn wrote: > On Tue, Jun 19, 2007 at 12:19:50PM -0800, Tad wrote: > >> SNMP agent is dropping coldstart and LinkUp traps since ARP table comes >> up without entries >> > > Maybe i don't understand what you are saying, but if there is no ARP > entry, the IP packet which needs to be sent is normally queued and an > ARP request is sent out. Once an ARP reply is received the queues > packet is then sent. Is this not happening? ARP will only que one mbuf, then drops it if more come in If a coldstart and 2 link-up traps occur at powerup, and if we have 2 trapsinks, for example, that's 6 msgs of which 4-5 are dropped. I need to update the ipdropped snmp stats counter too, cause it took awhile to figure out where the missing packets were going. Looked tricky to use arpresolve? without dropping any mbuf queued there also. -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss