Re: PVLAN on 3750

From: Persio Pucci <persio_at_gmail.com>
Date: Wed, 22 Jun 2011 10:16:57 -0300

Well I suppose I will have to settle for "not supported" by omission on the
documentation, then?

:/

On Wed, Jun 22, 2011 at 10:08 AM, Carl Gosselin
<carl.gosselin_at_altizone.com>wrote:

> Yes used normal trunks across the switches...
>
> Promiscuous port was on an SVI on 3750.
>
> Sorry for the confusion, I should of read the whole thread.
>
> On 2011-06-22, at 9:00, Joe Astorino <joeastorino1982_at_gmail.com> wrote:
>
> Carl,
>
> Did you simply trunk the private VLANs across multiple switches or did you
> configure a private VLAN promiscuous / isolated port as a trunk itself?
> They are different things.
>
> Trunking private vlans for interswitch private vlan communication is normal
> and supported. Making a promiscuous port or isolated port itself into a
> trunk I only see evidence of on the larger platforms like the 4500 and 6500
>
> On Wed, Jun 22, 2011 at 8:56 AM, Carl Gosselin <<carl.gosselin_at_altizone.com>
> carl.gosselin_at_altizone.com> wrote:
>
>> Joe,
>> I used PVLAN on a mixed 3750 & 3560 environment before so 3750 is
>> definetly available.
>>
>> Issues I've seen with PVLAN is that you can't use it in conjunction with
>> DHCP snooping and ARP inspection.
>>
>> -Carl
>>
>> On 2011-06-22, at 8:46, Joe Astorino < <joeastorino1982_at_gmail.com>
>> joeastorino1982_at_gmail.com> wrote:
>>
>> > I believe that feature is available on the 4500 and 6500 platforms but
>> not
>> > on the 3750 platform.
>> >
>> > On Wed, Jun 22, 2011 at 8:45 AM, Sadiq Yakasai < <sadiqtanko_at_gmail.com>
>> sadiqtanko_at_gmail.com> wrote:
>> >
>> >> I think you are right there! I have not seen anywhere, an indication of
>> a
>> >> promiscuous port also capable of being a trunk port.
>> >>
>> >>
>> >>
>> >> On Wed, Jun 22, 2011 at 1:19 PM, Persio Pucci < <persio_at_gmail.com>
>> persio_at_gmail.com> wrote:
>> >>
>> >>> 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>
>> 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>
>> 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
>> >>>>>
>> >>>>>
>> >>>>> Blogs and organic groups at <http://www.ccie.net>
>> http://www.ccie.net
>> >>>>>
>> >>>>>
>> _______________________________________________________________________
>> >>>>> Subscription information may be found at:
>> >>>>> <http://www.groupstudy.com/list/CCIELab.html>
>> http://www.groupstudy.com/list/CCIELab.html
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>
>> >>>>
>> >>>> --
>> >>>> CCIEx2 (R&S|Sec) #19963
>> >>>>
>> >>>
>> >>>
>> >>
>> >>
>> >> --
>> >> CCIEx2 (R&S|Sec) #19963
>> >>
>> >>
>> >> Blogs and organic groups at <http://www.ccie.net>http://www.ccie.net
>> >>
>> >> _______________________________________________________________________
>> >> Subscription information may be found at:
>> >> <http://www.groupstudy.com/list/CCIELab.html>
>> http://www.groupstudy.com/list/CCIELab.html
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >
>> >
>> > --
>> > Regards,
>> >
>> > Joe Astorino
>> > CCIE #24347
>> > Blog: <http://astorinonetworks.com>http://astorinonetworks.com
>> >
>> > "He not busy being born is busy dying" - Dylan
>> >
>> >
>> > Blogs and organic groups at <http://www.ccie.net>http://www.ccie.net
>> >
>> > _______________________________________________________________________
>> > Subscription information may be found at:
>> > <http://www.groupstudy.com/list/CCIELab.html>
>> http://www.groupstudy.com/list/CCIELab.html
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>>
>
>
>
> --
> Regards,
>
> Joe Astorino
> CCIE #24347
> Blog: <http://astorinonetworks.com>http://astorinonetworks.com
>
> "He not busy being born is busy dying" - Dylan

Blogs and organic groups at http://www.ccie.net
Received on Wed Jun 22 2011 - 10:16:57 ART

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