Date: Tue, 14 Jul 2015 12:27:53 +0200 From: Marek Salwerowicz <marek_sal@wp.pl> To: Karl Pielorz <kpielorz_lst@tdx.co.uk>, freebsd-net@freebsd.org Subject: Re: lagg of em0/em1 + VLAN = lower MTU? Message-ID: <55A4E429.10605@wp.pl> In-Reply-To: <7CFE75F7566F5789DAD9FBB2@[10.12.30.106]> References: <7CFE75F7566F5789DAD9FBB2@[10.12.30.106]>
next in thread | previous in thread | raw e-mail | index | archive | help
W dniu 2015-07-10 o 15:04, Karl Pielorz pisze: > > > The MTU on lagg0.10 has shrunk by 4 (size of VLAN tag). Is there a way > of avoiding that? That's my working setup (hardware is based on http://www.supermicro.com/products/system/4U/6047/SSG-6047R-E1R36L.cfm) #/etc/rc.conf: ifconfig_igb0="mtu 9000 up" ifconfig_igb1="mtu 9000 up" ifconfig_igb2="mtu 9000 up" ifconfig_igb3="mtu 9000 up" cloned_interfaces="lagg0 vlan14 vlan100 vlan900" ifconfig_lagg0="laggproto lacp laggport igb0 laggport igb1 laggport igb2 laggport igb3" #VLAN ifconfig_vlan14="inet 192.168.1.72/24 vlan 14 vlandev lagg0" ifconfig_vlan100="inet 192.168.21.253/24 vlan 100 vlandev lagg0" ifconfig_vlan900="inet 172.25.25.72/24 vlan 900 vlandev lagg0" % ifconfig -a | grep mtu igb0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 igb1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 igb2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 igb3: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 vlan14: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 vlan100: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 vlan900: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000 Reboot is needed after MTU change. Cheers -- Marek
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?55A4E429.10605>