Hi,
I am trying to configure lacp lagg interfaces with 2 systems connected back to
back as follows:
Ifconfig lagg0 create
Ifconfig lagg0 laggproto lacp laggport ql0 laggport ql1 192.168.100.1 netmask
255.255.255.0
Sometimes, the lag interface comes up correctly but sometimes the laggport
flags do not show properly. Instead of 1c<ACTIVE,COLLECTING,DISTRIBUTING>, it
shows values of 18. I have seen similar issues reported on various forums with
no solution.
Looking at the lagg driver code and reading the standard, I thought the
laggport flags ( defined in if_lagg.h) are based on the LACP_STATE_BITS in file
ieee8023ad_lacp.h. But the following ifconfig -v output does not make any sense
to me.
My concern is that when all the interfaces show flags as 1c, the traffic is
distributed across both the interfaces uniformly and I get aggregated
throughput. If not, the traffic flows only on 1 interface.
Is this a bug? How do I solve this? Or am I doing something wrong?
I am using Free-BSD 9.0 release.
System 1:
# ifconfig -v lagg0
lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=13b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,TSO4>
ether 00:0e:1e:08:05:20
inet 192.168.100.1 netmask 0xffffff00 broadcast 192.168.100.255
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect
status: active
groups: lagg
laggproto lacp
lag id: [(8000,00-0E-1E-08-05-20,0213,0000,0000),
(8000,00-0E-1E-04-2C-F0,0213,0000,0000)]
laggport: ql1 flags=18<COLLECTING,DISTRIBUTING> state=7D
[(8000,00-0E-1E-08-05-20,0213,8000,000F),
(FFFF,00-00-00-00-00-00,0000,FFFF,0000)]
laggport: ql0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> state=3D
[(8000,00-0E-1E-08-05-20,0213,8000,000E),
(8000,00-0E-1E-04-2C-F0,0213,8000,000E)]
System 2:
# ifconfig -v lagg0
lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=13b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,TSO4>
ether 00:0e:1e:04:2c:f0
inet 192.168.100.2 netmask 0xffffff00 broadcast 192.168.100.255
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect
status: active
groups: lagg
laggproto lacp
lag id: [(8000,00-0E-1E-04-2C-F0,0213,0000,0000),
(FFFF,00-00-00-00-00-00,0000,0000,0000)]
laggport: ql1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> state=7D
[(8000,00-0E-1E-04-2C-F0,0213,8000,000F),
(FFFF,00-00-00-00-00-00,0000,FFFF,0000)]
laggport: ql0 flags=18<COLLECTING,DISTRIBUTING> state=3D
[(8000,00-0E-1E-04-2C-F0,0213,8000,000E),
(8000,00-0E-1E-08-05-20,0213,8000,000E)]
thanks
Adarsh
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