Date: Wed, 27 Jan 2010 12:40:28 -0000 From: "Steven Hartland" <killing@multiplay.co.uk> To: <freebsd-net@freebsd.org> Subject: Problems getting lagg to balance using lacp Message-ID: <8E2B6E11A79B4958B94B44A41C7D4298@multiplay.co.uk>
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I've just setup lagg on one of our servers and run some
basic tests and although everything seems to be reporting
correctly no balancing appears to be happening.
The following is the setup:
FreeBSD side:
ifconfig_em0="up"
ifconfig_em1="up"
cloned_interfaces="lagg0"
ifconfig_lagg0="laggproto lacp laggport em0 laggport em1"
ipv4_addrs_lagg0="10.10.1.66/24"
Cisco side:
interface Port-channel2
description SERVER:: test - lagg0
switchport
switchport access vlan 96
switchport mode access
no ip address
end
interface GigabitEthernet3/35
description SERVER:: test - em0
switchport
switchport access vlan 96
switchport mode access
no ip address
channel-protocol lacp
channel-group 2 mode active
end
interface GigabitEthernet3/43
description SERVER:: test - em1
switchport
switchport access vlan 96
switchport mode access
no ip address
channel-protocol lacp
channel-group 2 mode active
end
Config:-
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=19b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4>
ether 00:30:48:33:ec:44
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
em1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=19b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4>
ether 00:30:48:33:ec:44
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
options=3<RXCSUM,TXCSUM>
inet 127.0.0.1 netmask 0xff000000
lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=19b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4>
ether 00:30:48:33:ec:44
inet 10.10.1.66 netmask 0xffffff00 broadcast 10.10.1.255
inet 10.10.1.83 netmask 0xffffffff broadcast 10.10.1.83
media: Ethernet autoselect
status: active
laggproto lacp
laggport: em1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
laggport: em0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
show lacp neighbor
Flags: S - Device is requesting Slow LACPDUs
F - Device is requesting Fast LACPDUs
A - Device is in Active mode P - Device is in Passive mode
Channel group 2 neighbors
Partner's information:
Partner Partner LACP Partner Partner Partner Partner Partner
Port Flags State Port Priority Admin Key Oper Key Port Number Port State
Gi3/35 SA bndl 32768 0x0 0x90 0x1 0x3D
Gi3/43 SA bndl 32768 0x0 0x90 0x2 0x3D
Stats:
Interface Traffic Peak Total
lagg0 in 0.351 KB/s 117.349 MB/s 2.695 GB
out 0.345 KB/s 114.183 MB/s 8.103 GB
em1 in 0.233 KB/s 117.349 MB/s 2.695 GB
out 0.000 KB/s 132.535 MB/s 8.890 GB
em0 in 0.116 KB/s 2.701 KB/s 331.405 KB
out 0.345 KB/s 9.093 KB/s 631.883 KB
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
em0 1500 <Link#1> 00:30:48:33:ec:44 5381 0 5188 0 0
em1 1500 <Link#2> 00:30:48:33:ec:44 5987608 0 4015584 0 0
lo0 16384 <Link#3> 0 0 0 0 0
lo0 16384 your-net localhost 0 - 0 - -
lagg0 1500 <Link#4> 00:30:48:33:ec:44 5992849 0 4016823 8 0
lagg0 1500 10.10.1.0 test 5985503 - 6475013 - -
lagg0 1500 10.10.1.83/ jail1 19 - 0 - -
Anyone got any ideas, as far as I can see lacp is negotiating correctly just
no balancing is happening :(
Regards
Steve
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