Date: Sat, 2 Jul 2011 22:15:38 +0300 From: "Adrian Minta" <gygy@stsnet.ro> To: "Adrian Minta" <gygy@stsnet.ro>, freebsd-net@freebsd.org Subject: FreeBSD 8.2 and MPD5 stability issues - update Message-ID: <6ecf4a8b9070592c8865ade7367d81c3.squirrel@mail.stsnet.ro>
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Hi, Without FLOWTABLE the system is stable an I was able to increase the number of l2tp sessions. A major improvement came when I replaced the network card with a multiqueue model (igb). The limit is now around 6300 active sessions. If I try to go over this limit the mpd5 starts to loose old sessions and the number quickly decrease. I believe I encounter an internal mpd5 timing issue. Is anybody aware of such thing ? The server is now a dual xeon E5520 and the load is around 6.8 at peak. The server has igb0 10.42.1.1/16 and 50 aliases. My mpd.conf looks like this: startup: #configure mpd users set user admin pass admin set user foo bar #configure the console set console self 127.0.0.1 5005 set console open #configure the web server set web self 10.42.1.1 5006 set web open set global l2tptimeout 60 default: load l2tp_server1 load l2tp_server2 load l2tp_server3 load l2tp_server4 load l2tp_server5 load l2tp_server6 load l2tp_server7 load l2tp_server8 load l2tp_server9 load l2tp_server10 load l2tp_server11 load l2tp_server12 load l2tp_server13 load l2tp_server14 load l2tp_server15 load l2tp_server16 load l2tp_server17 load l2tp_server18 load l2tp_server19 load l2tp_server20 load l2tp_server21 load l2tp_server22 load l2tp_server23 load l2tp_server24 load l2tp_server25 load l2tp_server26 load l2tp_server27 load l2tp_server28 load l2tp_server29 load l2tp_server30 load l2tp_server31 load l2tp_server32 load l2tp_server33 load l2tp_server34 load l2tp_server35 load l2tp_server36 load l2tp_server37 load l2tp_server38 load l2tp_server39 load l2tp_server40 load l2tp_server41 load l2tp_server42 load l2tp_server43 load l2tp_server44 load l2tp_server45 load l2tp_server46 load l2tp_server47 load l2tp_server48 load l2tp_server49 load l2tp_server50 l2tp_server1: set ippool add pool1 10.1.2.2 10.1.3.254 create bundle template B1 set iface disable proxy-arp set iface idle 1800 set iface enable tcpmssfix set ipcp yes vjcomp set ipcp ranges 10.1.2.1/23 ippool pool1 set ipcp dns 10.42.0.1 8.8.4.4 set bundle enable compression set ccp yes mppc set mppc yes e40 set mppc yes e128 set mppc yes stateless create link template L1 l2tp set link action bundle B1 set link enable multilink set link yes acfcomp protocomp set link no pap chap set link enable chap set link keep-alive 60 180 set auth max-logins 10000 set link mtu 1460 set l2tp self 10.42.1.1 set link enable incoming l2tp_server2: set ippool add pool2 10.1.4.2 10.1.5.254 create bundle template B2 set iface disable proxy-arp set iface idle 1800 set iface enable tcpmssfix set ipcp yes vjcomp set ipcp ranges 10.1.4.1/23 ippool pool2 set ipcp dns 10.42.0.1 8.8.4.4 set bundle enable compression set ccp yes mppc set mppc yes e40 set mppc yes e128 set mppc yes stateless create link template L2 l2tp set link action bundle B2 set link enable multilink set link yes acfcomp protocomp set link no pap chap set link enable chap set link keep-alive 60 180 set auth max-logins 10000 set link mtu 1460 set l2tp self 10.42.1.2 set link enable incoming ..... l2tp_server50: set ippool add pool50 10.1.100.2 10.1.101.254 create bundle template B50 set iface disable proxy-arp set iface idle 1800 set iface enable tcpmssfix set ipcp yes vjcomp set ipcp ranges 10.1.100.1/23 ippool pool50 set ipcp dns 10.42.0.1 8.8.4.4 set bundle enable compression set ccp yes mppc set mppc yes e40 set mppc yes e128 set mppc yes stateless create link template L50 l2tp set link action bundle B50 set link enable multilink set link yes acfcomp protocomp set link no pap chap set link enable chap set link keep-alive 60 180 set auth max-logins 10000 set link mtu 1460 set l2tp self 10.42.1.50 set link enable incoming
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