[f-nsp] MLX with "route-only" port is forwarding VLAN1 BPDUs?

Gerald gerald at ax.tc
Fri Jun 24 17:59:29 EDT 2016


Oh, maybe the trick is disabling STP an the port too:

!
vlan 666 name dummy-layer3-vlan
 untag eth 1/2
 spanning-tree ethernet 1/2 disable
!

Am 24.06.2016 um 23:54 schrieb Gerald:
> All right, I've tested this and now the MLX seems to generate VLAN666
> BPDUs by itself on this port. At least I can see that the "BPDU Config
> tx" counter is still rising.
> 
> So I can stop flooding VLAN1 BPDUs from other ports but now we have new
> VLAN666 BPDUs on that port transmitted.
> 
> From one hell to the other... which one is better :-/
> 
> 
> Gerald
> 
> Am 24.06.2016 um 23:35 schrieb Clement Cavadore:
>> Yes thats it ;)
>>
>> Le 24 juin 2016 23:30:02 GMT+02:00, Gerald <gerald at ax.tc> a écrit :
>>> Oops, need sleep ;-)
>>>
>>> !
>>> int eth 1/2
>>> enable
>>> route-only
>>> ip addres 10.0.0.1/24
>>> !
>>> vlan 666 name dummy-layer3-vlan
>>> untag eth 1/2
>>> !
>>>
>>> Am 24.06.2016 um 23:27 schrieb Gerald:
>>>> Thx Clement for this advice, did you mean something like this:
>>>>
>>>> !
>>>> int eth 1/2
>>>>  enable
>>>>  route-only
>>>>  ip addres 10.0.0.1/14
>>>> !
>>>> vlan 666 name dummy-layer3-vlan
>>>>  untag eth 2/12
>>>> !
>>>>
>>>>
>>>> Gerald
>>>>
>>>> Am 24.06.2016 um 21:59 schrieb Clement Cavadore:
>>>>> You should create some "dummy" vlans on route-only ports, to avoid
>>> that. 
>>>>> No problem having untagged vlan on any port with IP/routing
>>> configuration. You even ca do this without any disturbance.
>>>>>
>>>>> Le 24 juin 2016 21:53:08 GMT+02:00, Gerald <gerald at ax.tc> a écrit :
>>>>>> The MLX got a reboot some weeks ago, this seems not to help. I'am
>>>>>> afraid
>>>>>> of your (1) note... :-(.
>>>>>>
>>>>>> Gerald
>>>>>>
>>>>>> Am 24.06.2016 um 21:27 schrieb Steven Raymond:
>>>>>>>
>>>>>>>> On Jun 24, 2016, at 1:19 PM, Gerald <gerald at ax.tc> wrote:
>>>>>>>>
>>>>>>>> Is there a way to stop this? I would have my "route-only" ports
>>>>>> Layer2
>>>>>>>> free and not disturb other Layer2 systems behind.
>>>>>>>
>>>>>>> Old old notes I found said basically 1) “bpdus are sent even with
>>>>>> route-only”, and 2) "you should reboot after applying route-only". 
>>>
>>>>>>>
>>>>>>> Both of which may not helpful to you.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>> _______________________________________________
>>>>>> foundry-nsp mailing list
>>>>>> foundry-nsp at puck.nether.net
>>>>>> http://puck.nether.net/mailman/listinfo/foundry-nsp
>>>>>
>>


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