From owner-freebsd-net@FreeBSD.ORG Mon Sep 24 17:33:35 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 94E2C1065745 for ; Mon, 24 Sep 2012 17:33:35 +0000 (UTC) (envelope-from kes-kes@yandex.ru) Received: from forward20.mail.yandex.net (forward20.mail.yandex.net [IPv6:2a02:6b8:0:1402::5]) by mx1.freebsd.org (Postfix) with ESMTP id A73678FC0C for ; Mon, 24 Sep 2012 17:33:34 +0000 (UTC) Received: from smtp16.mail.yandex.net (smtp16.mail.yandex.net [95.108.252.16]) by forward20.mail.yandex.net (Yandex) with ESMTP id 37F1E1041BE9; Mon, 24 Sep 2012 21:33:33 +0400 (MSK) Received: from smtp16.mail.yandex.net (localhost [127.0.0.1]) by smtp16.mail.yandex.net (Yandex) with ESMTP id 13C546A06C9; Mon, 24 Sep 2012 21:33:33 +0400 (MSK) Received: from unknown (unknown [77.93.52.20]) by smtp16.mail.yandex.net (nwsmtp/Yandex) with ESMTP id XW44Ruhj-XW44SBDI; Mon, 24 Sep 2012 21:33:32 +0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1348508013; bh=dwe28RxXyiSQ+43c/G6OSHQ8aVI2seg5oblAYE8zSk8=; h=Date:From:X-Mailer:Reply-To:Organization:X-Priority:Message-ID:To: CC:Subject:In-Reply-To:References:MIME-Version:Content-Type: Content-Transfer-Encoding; b=SuiX/fZrKfXE8T9qYW61JDXk0QP6k+VhLdvFw8qm/v3eQL2FJ0FL0NJNwT4pl4duI KXnoJuC6/nKDRIaL5LvfLpKo4S2ep5rUYDBTO6OO6BPrj93yc7KCbhcW2B/sbYCfyM Sr7ja8k022ueMzp6XvxwdbIJsJarmLpbP1z6vaRE= Date: Mon, 24 Sep 2012 20:33:31 +0300 From: Eugen Konkov X-Mailer: The Bat! (v4.0.24) Professional Organization: ISP FreeLine X-Priority: 3 (Normal) Message-ID: <1024127597.20120924203331@yandex.ru> To: "Rudy (bulk)" In-Reply-To: <5060884C.3050709@monkeybrains.net> References: <5060884C.3050709@monkeybrains.net> MIME-Version: 1.0 Content-Type: text/plain; charset=windows-1251 Content-Transfer-Encoding: 8bit Cc: freebsd-net Subject: Re: ping: sendto: No buffer space available X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Eugen Konkov List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Sep 2012 17:33:35 -0000 Здравствуйте, Rudy. check routing table and show which IP you ping. Вы писали 24 сентября 2012 г., 19:20:28: Rb> Sometimes when I try to ping a neighbor machine (plugged directly in Rb> with no switch involved), I get: Rb> ping: sendto: No buffer space available Rb> ping: sendto: No buffer space available Rb> If I reset the interface 'ifconfig em1 down; ifconfig em1 up' the Rb> problem goes away. Rb> The pings are: Rb> FreeBSD 8.3 em1 --> FreeBSD 9.0 em2 Rb> and I am seeing the issue on the FreeBSD 8.3 machine. The box has 6GB Rb> of free ram and is a quagga router. Rb> What do I need to tune? Rb> Thanks! Rb> Rudy Rb> # netstat -m Rb> 10236/8454/18690 mbufs in use (current/cache/total) Rb> 10234/5388/15622/262144 mbuf clusters in use (current/cache/total/max) Rb> 10234/5382 mbuf+clusters out of packet secondary zone in use (current/cache) Rb> 0/327/327/12800 4k (page size) jumbo clusters in use Rb> (current/cache/total/max) Rb> 0/3070/3070/6400 9k jumbo clusters in use (current/cache/total/max) Rb> 0/0/0/3200 16k jumbo clusters in use (current/cache/total/max) Rb> 23027K/41827K/64854K bytes allocated to network (current/cache/total) Rb> 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) Rb> 0/0/0 requests for jumbo clusters denied (4k/9k/16k) Rb> 0/0/0 sfbufs in use (current/peak/max) Rb> 0 requests for sfbufs denied Rb> 0 requests for sfbufs delayed Rb> 0 requests for I/O initiated by sendfile Rb> 0 calls to protocol drain routines Rb> # ifconfig em1 Rb> em1: flags=8843 metric 0 mtu 1500 Rb> options=4219b Rb> ether 00:25:90:56:60:7f Rb> inet 10.1.1.1 netmask 0xfffffffc broadcast 10.1.1.3 Rb> media: Ethernet autoselect (1000baseT ) Rb> status: active Rb> FreeBSD 8.3 Rb> ### loader.conf: Rb> net.link.ifqmaxlen=1024 Rb> hw.em.rxd=1024 Rb> hw.em.txd=1024 Rb> ### sysctl.conf: Rb> kern.timecounter.hardware=HPET Rb> net.route.netisr_maxqlen=2048 Rb> net.inet.ip.intr_queue_maxlen=1024 Rb> kern.ipc.somaxconn=256 Rb> kern.random.sys.harvest.interrupt=0 Rb> kern.random.sys.harvest.ethernet=0 Rb> net.inet.raw.maxdgram=16384 Rb> net.inet.raw.recvspace=16384 Rb> net.inet.icmp.icmplim=1000 Rb> net.inet.ip.fastforwarding=1 Rb> kern.ipc.nmbclusters=262144 Rb> net.inet.icmp.drop_redirect=1 Rb> dev.em.0.rx_processing_limit=200 Rb> dev.em.1.rx_processing_limit=200 Rb> dev.em.2.rx_processing_limit=200 Rb> dev.em.3.rx_processing_limit=200 Rb> net.link.ether.inet.max_age=300 Rb> hw.intr_storm_threshold=9000 Rb> # Security Rb> net.inet.ip.redirect=0 Rb> net.inet.ip.sourceroute=0 Rb> net.inet.ip.accept_sourceroute=0 Rb> net.inet.icmp.maskrepl=0 Rb> Not sure if it matters, but here are the tunings on the other box: Rb> FreeBSD 9.0 Rb> ### loader.conf: Rb> net.link.ifqmaxlen="512" Rb> ### sysctl.conf: Rb> net.inet.ip.fastforwarding=1 Rb> kern.ipc.nmbclusters=262144 Rb> kern.timecounter.hardware=HPET Rb> net.inet.ip.rtminexpire=2 Rb> net.inet.ip.rtmaxcache=1024 Rb> dev.igb.0.rx_processing_limit=480 Rb> dev.igb.1.rx_processing_limit=480 Rb> net.inet.icmp.icmplim=1000 Rb> kern.random.sys.harvest.interrupt=0 Rb> kern.random.sys.harvest.ethernet=0 Rb> net.link.ether.inet.max_age=300 Rb> ##Sat Apr 21 00:06:48 PDT 2012 Rb> net.inet.ip.redirect=0 Rb> net.route.netisr_maxqlen=2048 Rb> _______________________________________________ Rb> freebsd-net@freebsd.org mailing list Rb> http://lists.freebsd.org/mailman/listinfo/freebsd-net Rb> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" -- С уважением, Eugen mailto:kes-kes@yandex.ru