[OpenIndiana-discuss] LACP between OpenIndiana and a Cisco C3560: only some traffic passes.
Antony Brooke-Wood
abrookewood at gmail.com
Tue Sep 10 11:54:55 UTC 2013
I can ping the interface - but I can actually do that even when both the
underlying NICs are unplugged.
I'm not at work, but I know that /etc/hostname.aggr1 didn't exist when I
checked.
I'll check the other things you mentioned tomorrow - thanks.
Regards,
Antony Brooke-Wood
Mobile: +61 404 460 326
On 10 September 2013 21:05, Udo Grabowski (IMK) <udo.grabowski at kit.edu>wrote:
> Hm, looks ok so far. Can you ping yourself on the
> interface IP ?
> The usual stuff is to check /etc/hostname.aggr1,
> /etc/hosts (should be a link to /etc/inet/hosts)
> should contain the IP adress and name of the host
> on that interface (it seems it does not, since your
> routing table shows only the IP, not the name),
> /etc/defaultrouter must have your gateway, /etc/nsswitch.conf
> should have 'files' as first entry for hosts and ipnodes,
> /etc/netmasks should have a class C broadcast entry for
> your network, nwam should be really off, /etc/resolv.conf
> should have domain, nameserver, search entries, IP forwarding/
> routing service off, mtu should be 1500 (if you don't have
> everything on 9000). MAC address should be nonzero, I've
> a workstation at home where the netcard looses its mac address
> everytime I unplug it from power...
>
> Sometimes a simple reboot helps after heavy configuration
> changes, I've also seen Cisco switches where you sometimes
> have to reconfigure the ports a second time with the exactly
> same configuration to get them active (and it often takes
> some time until they come up), unplug/replug could help.
>
>
> On 10/09/2013 11:22, Antony Brooke-Wood wrote:
>
>> Hi Udo,
>>
>> I had the switch in access mode already (though I did try to force it as a
>> trunk out of frustration). The switch config is as follows:
>> interface Port-channel10
>> description ARC01_LACP
>> switchport mode access
>> !
>> interface GigabitEthernet0/41
>> description ARC01_LACP
>> switchport mode access
>> channel-group 10 mode active
>> !
>> interface GigabitEthernet0/42
>> description ARC01_LACP
>> switchport mode access
>> channel-group 10 mode active
>>
>> Switch shows:
>> SW01#show lacp 10 internal
>> Channel group 10
>> LACP port Admin Oper Port
>> Port
>> Port Flags State Priority Key Key Number
>> State
>> Gi0/41 SP bndl 32768 0xA 0xA 0x12A
>> 0x3C
>> Gi0/42 SP bndl 32768 0xA 0xA 0x12B
>> 0x3C
>>
>> SW01#show lacp 10 neighbor
>> Channel group 10 neighbors
>> Partner's information:
>> LACP port Admin Oper Port
>> Port
>> Port Flags Priority Dev ID Age key Key Number
>> State
>> Gi0/41 SA 4096 6805.ca11.19a6 8s 0x0 0x3EA 0x4
>> 0x3D
>> Gi0/42 SA 4096 6805.ca11.19a6 5s 0x0 0x3EA 0x5
>> 0x3D
>>
>> Port: Gi0/42
>> ------------
>>
>> Port state = Up Mstr Assoc In-Bndl
>> Channel group = 10 Mode = Passive Gcchange = -
>> Port-channel = Po10 GC = - Pseudo port-channel =
>> Po10
>> Port index = 0 Load = 0x00 Protocol = LACP
>>
>> Flags: S - Device is sending Slow LACPDUs F - Device is sending fast
>> LACPDUs.
>> A - Device is in active mode. P - Device is in passive
>> mode.
>>
>> Local information:
>> LACP port Admin Oper Port
>> Port
>> Port Flags State Priority Key Key Number
>> State
>> Gi0/42 SP bndl 32768 0xA 0xA 0x12B
>> 0x3C
>>
>> Partner's information:
>>
>> LACP port Admin Oper Port
>> Port
>> Port Flags Priority Dev ID Age key Key Number
>> State
>> Gi0/42 SA 4096 6805.ca11.19a6 6s 0x0 0x3EA 0x5
>> 0x3D
>>
>> Age of the port in the current state: 0d:00h:17m:42s
>>
>> The LACPDU speeds are already in synch (both set to slow/long).
>> I had both side set to active, but I've changed it to passive on the
>> switch
>> side (no change).
>> I previously had the policy set only to L4, but I've changed it to
>> L2,L3,L4
>> (no change).
>>
>> What I really don't understand is how I got a DHCP address across the
>> link,
>> but can't do anything else.
>>
>> Any other ideas?
>>
>>
>> Regards,
>>
>> Antony Brooke-Wood
>> Mobile: +61 404 460 326
>>
>>
>> On 10 September 2013 18:42, Udo Grabowski (IMK) <udo.grabowski at kit.edu
>> >wrote:
>>
>> On 10/09/2013 10:14, Antony Brooke-Wood wrote:
>>>
>>> I am running OpenIndiana (oi_151a8) and have two NICs aggregated using
>>>> LACP
>>>> connected to a Cisco WS-C3560G-48TS. Both the server and the switch show
>>>> the aggregate link as up. But while link layer traffic is visible
>>>> ('snoop'
>>>> shows ARP requests etc), I can not pass any IP traffic (ping, ssh all
>>>> fail). The really strange thing is that the aggregate link can obtain a
>>>> DHCP address, which provides the correct gateway etc. My initial
>>>> thoughts
>>>> were that there was a problem with the VLAN configuration, but the
>>>> switch
>>>> is running everything on VLAN1. I also tried explicitly adding this on
>>>> both
>>>> ends, but without success (OI won't let me configure a VLAN with the
>>>> native
>>>> VLAN). Any ideas?
>>>>
>>>>
>>>> The switch should have its ports also in a LACP group, and this
>>> group should be VLAN access, not a trunk port, otherwise you have
>>> to create a vlan aggr on your host also (which makes no real sense
>>> if you only access this subnet on the host). You may also set the
>>> policy to all layers (-P L2,L3,L4), LACPDU speed should match. We
>>> usually prefer to set the switch to passive and host to active
>>> mode:
>>>
>>> interface GigabitEthernet0/14
>>> switchport access vlan yyyy
>>> switchport mode access
>>> channel-group 10 mode passive
>>>
>>> If you see
>>>
>>> switchport trunk encapsulation dot1q
>>> switchport trunk allowed vlan yyyy
>>> switchport mode trunk
>>>
>>> you have a trunk port, not an access port.
>>>
>>> Port: Gi0/14
>>> ------------
>>>
>>> Port state = Up Mstr Assoc In-Bndl
>>> Channel group = 10 Mode = Passive Gcchange = -
>>> Port-channel = Po10 GC = - Pseudo port-channel =
>>> Po10
>>> Port index = 0 Load = 0x00 Protocol = LACP
>>>
>>> Flags: S - Device is sending Slow LACPDUs F - Device is sending fast
>>> LACPDUs.
>>> A - Device is in active mode. P - Device is in passive
>>> mode.
>>>
>>> Local information:
>>> LACP port Admin Oper Port
>>> Port
>>> Port Flags State Priority Key Key Number
>>> State
>>> Gi0/14 SP bndl 32768 0xA 0xA 0xE
>>> 0x3C
>>>
>>> Partner's information:
>>>
>>> LACP port Admin Oper Port
>>> Port
>>> Port Flags Priority Dev ID Age key Key Number
>>> State
>>> Gi0/14 SA 4096 0014.4f01.ddd2 28s 0x0 0x3E9 0x4
>>> 0x3D
>>>
>>> Age of the port in the current state: 692d:17h:49m:29s
>>>
>>>
>>>
> --
> Dr.Udo Grabowski Inst.f.Meteorology a.Climate Research IMK-ASF-SAT
> www.imk-asf.kit.edu/english/**sat.php<http://www.imk-asf.kit.edu/english/sat.php>
> KIT - Karlsruhe Institute of Technology http://www.kit.edu
> Postfach 3640,76021 Karlsruhe,Germany T:(+49)721 608-26026 F:-926026
>
>
> _______________________________________________
> OpenIndiana-discuss mailing list
> OpenIndiana-discuss at openindiana.org
> http://openindiana.org/mailman/listinfo/openindiana-discuss
>
>
More information about the OpenIndiana-discuss
mailing list