Date: Thu, 2 Apr 2015 13:01:42 +0200 From: Mark Schouten <mark@tuxis.nl> To: freebsd-net@freebsd.org Subject: Re: Urgent matter: LACP trunk stops distributing Message-ID: <2042783266-15365@kerio.tuxis.nl> In-Reply-To: <1953214074-10699@kerio.tuxis.nl>
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--=-lq2bHpg3wDF3v+pWDHkm Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Hi, So I've changed the configuration last night, eliminating the possibility t= hat the issue was LACP. All traffic was handled by the single igb interface= . It didn't help, at all. This morning the interface stopped working, without any form of messages an= d started working again after a few minutes. Then, some minutes later it st= opped again, to resume after a few minutes. So now I plugged the switch into an em-port and I tried to move the vlan in= terfaces to the em-interface. That worked, partially. The server kept the o= ld mac-address in the arp-table. Even after I deleted the vlan interface. I rebooted the box, and so far so good. But still, any help is appreciated. Met vriendelijke groeten, --=C2=A0 Kerio Operator in de Cloud? https://www.kerioindecloud.nl/ Mark Schouten | Tuxis Internet Engineering KvK:=C2=A061527076=C2=A0| http://www.tuxis.nl/ T: 0318 200208 | info@tuxis.nl Van: Mark Schouten <mark@tuxis.nl>=20 Aan: <freebsd-net@freebsd.org>=20 Verzonden: 1-4-2015 12:07=20 Onderwerp: Urgent matter: LACP trunk stops distributing=20 Hi,=20 =20 I've got an urgent matter on my hands, my FreeBSD iScsibox has dropped it's= LACP trunk twice in the last 24 hours, which causes a whole lot of issues = on my VPS cluster, using that storage. =20 =20 It's a FreeBSD box with two igb-interfaces in an LACP trunk with jumboframe= s and vlans. If the connection drops, the only thing I see is:=20 =20 Apr=C2=A0 1 10:37:18 zstore02 kernel: igb0: Interface stopped DISTRIBUTING,= possible flapping=20 Apr=C2=A0 1 10:37:28 zstore02 kernel: igb1: Interface stopped DISTRIBUTING,= possible flapping=20 =20 The switch has nothing to say, so it doesn't seem that there are acual link= flaps. I have a feeling that it's this LACP trunk that goes haywire somewhe= re on the FreeBSD side. If anyone can help me with this, I'd be grateful. I= f someone (preferably EU-based) wants to help out professionally as a consu= ltant, that would be fine too. Or if anyone knows someone in .nl that offer= s this level of expertise on consultingbase, let me know.=20 =20 I'm running 10.1-RELEASE on the box, see the (AFAICS) relevant config below= . The switch is a Brocade ICX6430.=20 =20 [root@zstore02 ~]# ifconfig lagg0=20 lagg0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 90= 00=20 =C2=A0=C2=A0=C2=A0 options=3D4019b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VL= AN_HWCSUM,TSO4,VLAN_HWTSO>=20 =C2=A0=C2=A0=C2=A0 ether 0c:c4:7a:12:13:dc=20 =C2=A0=C2=A0=C2=A0 nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>=20 =C2=A0=C2=A0=C2=A0 media: Ethernet autoselect=20 =C2=A0=C2=A0=C2=A0 status: active=20 =C2=A0=C2=A0=C2=A0 laggproto lacp lagghash l2,l3,l4=20 =C2=A0=C2=A0=C2=A0 laggport: em1 flags=3D0<>=20 =C2=A0=C2=A0=C2=A0 laggport: em0 flags=3D0<>=20 =C2=A0=C2=A0=C2=A0 laggport: igb1 flags=3D1c<ACTIVE,COLLECTING,DISTRIBUTING= >=20 =C2=A0=C2=A0=C2=A0 laggport: igb0 flags=3D1c<ACTIVE,COLLECTING,DISTRIBUTING= >=20 =20 [root@zstore02 ~]# sysctl -a | grep lacp=20 net.link.lagg.lacp.debug: 0=20 net.link.lagg.0.lacp.lacp_strict_mode: 1=20 net.link.lagg.0.lacp.debug.rx_test: 0=20 net.link.lagg.0.lacp.debug.tx_test: 0=20 =20 =20 =20 Met vriendelijke groeten,=20 =20 --=C2=A0=20 Kerio Operator in de Cloud? https://www.kerioindecloud.nl/=20 Mark Schouten =C2=A0| Tuxis Internet Engineering=20 KvK:=C2=A061527076=C2=A0| http://www.tuxis.nl/=20 T: 0318 200208 | info@tuxis.nl = --=-lq2bHpg3wDF3v+pWDHkm Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Description: Electronic Signature S/MIME Content-Transfer-Encoding: base64 MIIRwQYJKoZIhvcNAQcCoIIRsjCCEa4CAQExCzAJBgUrDgMCGgUAMAsGCSqGSIb3DQEHAaCCDt4w ggUbMIIEA6ADAgECAhAsv+VdGX6YsSHI/WRu2j2JMA0GCSqGSIb3DQEBBQUAMIGTMQswCQYDVQQG EwJHQjEbMBkGA1UECBMSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYDVQQHEwdTYWxmb3JkMRowGAYD VQQKExFDT01PRE8gQ0EgTGltaXRlZDE5MDcGA1UEAxMwQ09NT0RPIENsaWVudCBBdXRoZW50aWNh dGlvbiBhbmQgU2VjdXJlIEVtYWlsIENBMB4XDTE0MDcwMTAwMDAwMFoXDTE1MDcwMTIzNTk1OVow HjEcMBoGCSqGSIb3DQEJARYNbWFya0B0dXhpcy5ubDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCC 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