From: Scott Thornton (scthornton@gmail.com)
Date: Tue Aug 23 2005 - 16:49:44 GMT-3
Looks like I misunderstood your question...
On 8/23/05, fferrer10@vodafone.es <fferrer10@vodafone.es> wrote:
> Hi:
>
> My question is: is it a good practice to enable private vlan edge port feature (protected ports) and STP on the uplink ports of an edge switch?
>
> If you red the 3550 config guide at http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225seb/scg/swtrafc.htm#wp1158863
> you can see protected ports are also supported on dot1q trunks.. why are you saying that they are only for "non-trunk & non-uplink" ports?
>
> Regards
>
> Juan
>
>
> > If you know of ports that don't want to be able to be trunks or uplink
> > ports, you can use bpdu guard, this will prevent BPDUs from being
> > exchanged on those ports.
> >
> > On 8/23/05, fferrer10@vodafone.es <fferrer10@vodafone.es> wrote:
> > > Hi all
> > >
> > > We are considering to use protected ports (private-vlan edge ports) besides STP on the uplink ports of "non-transit" edge switches, as an extra way to avoid undesirable layer 2 loops. Anyone can conseil? I know that if you configure 2 ports of the same switches as protected, the traffic that comes from the first can not go out throught the second, and it seems this can help if you have edges switches with 2 uplinks (1 forwarding, 1 blocking),,, but i don't see clearly if protected ports feature can help to STP or it is designed to other purpouses...
> > >
> > > Opinions and experiences will be greatly apreciated
> > >
> > > Regards
> > >
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> >
> > --
> > Scott C Thornton
> >
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>
-- Scott C ThorntonNotice: This e-mail (including attachments) is covered by the Electronic Communications Privacy Act, 18 U.S.C. 2510-2521, is confidential and may be legally privileged. If you are not the intended recipient, you are hereby notified that any retention, dissemination, distribution, or copying of this communication is strictly prohibited. Please reply to the sender that you have received the message in error, then delete it. Thank you.
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