[OpenIndiana-discuss] LACP between OpenIndiana and a Cisco C3560: only some traffic passes.
Antony Brooke-Wood
abrookewood at gmail.com
Tue Sep 10 09:22:03 UTC 2013
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
>
>
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