From: Stephen Hemminger <shemminger@linux-foundation.org>
To: Benny Amorsen <benny+usenet@amorsen.dk>
Cc: bridge@linux-foundation.org
Subject: Re: [Bridge] Re: PVST
Date: Fri, 27 Apr 2007 11:48:14 -0700 [thread overview]
Message-ID: <20070427114814.66962558@freekitty> (raw)
In-Reply-To: <m3zm4udjbv.fsf@ursa.amorsen.dk>
On 27 Apr 2007 15:43:00 +0200
Benny Amorsen <benny+usenet@amorsen.dk> wrote:
> >>>>> "SH" == Stephen Hemminger <shemminger@linux-foundation.org> writes:
>
> SH> Someone had sent some patches to do PVST, but PVST seems to be
> SH> Cisco centric. and the patched version was too inflexible, so I
> SH> didn't put it in mainline.
>
> PVST is indeed Cisco centric. It is also the only way to stay sane if
> you have several VLAN's.
>
> However, isn't PVST the same as making a br100 out of eth0.100 and
> eth1.100, and turning STP on? Hopefully the STP packets should then
> emerge with a VLAN tag of 100.
>
>
> /Benny
>
>
> _______________________________________________
> Bridge mailing list
> Bridge@lists.linux-foundation.org
> https://lists.linux-foundation.org/mailman/listinfo/bridge
The problem is if you bridge two vlan's then the Cisco box will
see two STP bpdu's arrive, and conclude that there is a cycle and
bring the link down.
--
Stephen Hemminger <shemminger@linux-foundation.org>
next prev parent reply other threads:[~2007-04-27 18:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-27 0:47 [Bridge] PVST Leigh Sharpe
2007-04-27 4:07 ` Stephen Hemminger
2007-04-27 4:53 ` Leigh Sharpe
2007-04-27 10:38 ` Leigh Sharpe
2007-04-27 13:43 ` [Bridge] PVST Benny Amorsen
2007-04-27 18:48 ` Stephen Hemminger [this message]
2007-04-27 23:19 ` Benny Amorsen
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