Re: PVLAN on 3750

Sadiq,

I have tried that while troubleshooting what was wrong during the
maintenance window, but that did not help.

I suspect this have something to do with the trunk port acting as
promiscuous and not working fine as trunk, but can't find anything on it.

On Wed, Jun 22, 2011 at 8:57 AM, Sadiq Yakasai <sadiqtanko_at_gmail.com> wrote:

> Hmmm, sounds very strange, as the configuration is pretty straight forward
> as you have mentioned.
>
> One quick test to verify this: how about if you created an SVI for the
> primary VLAN and added the mapping on there. Does the problem persist?
>
> I understand this might conflict with your network design but this is
> strictly for troubleshooting sake.
>
> HTH,
> Sadiq
>
> On Wed, Jun 22, 2011 at 12:06 PM, Persio Pucci <persio_at_gmail.com> wrote:
>
>> Hi fellows,
>>
>> I just tried to implement a fairly standard PVLAN configration on a 3750,
>> however it did not work as intended. Configs as follows:
>>
>> vlan 501
>> > private-vlan isolated
>> > !
>> > vlan 500
>> > private-vlan primary
>> > private-vlan association add 501
>> > !
>> > int g1/0/3
>> > switchport mode private-vlan host
>> > switchport private-vlan host-association 500 501
>> > !
>> > int g2/0/5
>> > switchport mode private-vlan promiscuous
>> > switchport private-vlan mapping 500 add 501
>>
>>
>> Configuration is pretty straight-forward but could not identify what went
>> wrong. Command "*show interface g1/0/3 private-vlan mapping*" would
>> produce
>> a "*Private vlan mapping information is not available*" response, although
>> "
>> *show vlan private-vlan*" would show them correctly configured.
>>
>> As a result, I was unable to reach IP addresses on the 500/501 subnet that
>> were located on the isolated vlan/ports
>>
>> Another question I have (and I could not find much information on the
>> documentation) is regarding making promiscuous a trunk port (as port
>> g2/0/5
>> in the above example). How does it work for VLANs out of the PVLAN config
>> that are supposed to be received on this trunk? They also did not seem to
>> be
>> working at the time.
>>
>> Any help is appreciated.
>>
>> Persio
>>
>>
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>
>
> --
> CCIEx2 (R&S|Sec) #19963

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Received on Wed Jun 22 2011 - 09:19:18 ART