Re: Nexus network Design - Switching LOOP

The workarround is called VPC. I'm not sure we are understanding each
other :(

-Carlos

jack daniels @ 13/03/2012 10:15 -0300 dixit:
> Hi carlos,
>
> you are right I shoudn't play with STP in nexus. I agree to this , but
> looking for a workaround to this (can't go for design cange and don't
> have ports available on 5k to connect 3750 directly there).These are
> the issues which are teasers but you really enjoy solving them .
> Experts Request your support in solving the puzzle.
>
>
>
> On Tue, Mar 13, 2012 at 6:25 PM, Carlos G Mendioroz<tron_at_huapi.ba.ar> wrote:
>> Yes, so what ?
>> As I said, STP is a bad word. You don't have to have STP in your design!
>> -Carlos
>>
>> jack daniels @ 13/03/2012 09:49 -0300 dixit:
>>
>>> Hi Carlos,
>>>
>>> There is 2K in between which doesn't support STP.
>>>
>>> Regards
>>>
>>>
>>> On Tue, Mar 13, 2012 at 5:45 PM, Carlos G Mendioroz<tron_at_huapi.ba.ar>
>>> wrote:
>>>>
>>>> STP is a bad word in Nexus :)
>>>> So you should take a look at VPC!
>>>>
>>>> Short story: make the two N5Ks behave as one entity to the 3750,
>>>> and make a LAG (etherchannel) between them.
>>>>
>>>> -Carlos
>>>>
>>>>
>>>> http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9670/configuration_guide_c07-543563.html
>>>>
>>>> jack daniels @ 13/03/2012 08:53 -0300 dixit:
>>>>>
>>>>>
>>>>> Hi Guys,
>>>>>
>>>>> I have a scenario for which I'm scratching my head since long - please
>>>>> help
>>>>>
>>>>>
>>>>> Nexus 5K-1---------Nexus5K-2
>>>>> | |
>>>>> | |
>>>>> Nexus2K-1 Nexus2K-2
>>>>> | | Port eth 1/1
>>>>> | |
>>>>> Cisco 3750-----------------------
>>>>>
>>>>>
>>>>> In this scenario Switching LOOP is getting formed. Only way I'm able
>>>>> to get rid is shutdown Port eth1/1 on Nexus2K-2. Please help in this
>>>>> case.
>>>>>
>>>>> Thanks in anticipation in adavance.
>>>>>
>>>>> Regards
>>>>> Jack
>>>>>
>>>>>
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>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>> --
>>>> Carlos G Mendioroz<tron_at_huapi.ba.ar> LW7 EQI Argentina
>>
>>
>> --
>> Carlos G Mendioroz<tron_at_huapi.ba.ar> LW7 EQI Argentina

-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net