From: Stephen Hemminger <shemminger@osdl.org>
To: Hai Wang <u2.ireland@gmail.com>
Cc: bridge@lists.osdl.org
Subject: Re: [Bridge] Bridge question
Date: Thu, 3 Nov 2005 15:33:17 -0800 [thread overview]
Message-ID: <20051103153317.06e1efad@dxpl.pdx.osdl.net> (raw)
In-Reply-To: <30be90270511031517v3bbbafcfr2a46adaa18cb90d9@mail.gmail.com>
On Thu, 3 Nov 2005 18:17:37 -0500
Hai Wang <u2.ireland@gmail.com> wrote:
> Stephen,
>
> Did you mean that the #255 limit is set in 2.4 Kernel, not
> > bridge-utility? I am wondering why there is such limit,
> > performance-related, or...? If I have to modify kernel 2.4 to exceed the
> > limit, can you tell me where I should look at? Any drawback if I increase
> > the limit up to 6000?
> >
Spanning tree protocol has limit on the protocol of 16 bits for port_id.
originally 8 bits were for priority and 8 bits were for port number,
but I added the cheat that vendors were using of using 2 bits of priority
for port number.
--
Stephen Hemminger <shemminger@osdl.org>
OSDL http://developer.osdl.org/~shemminger
next prev parent reply other threads:[~2005-11-03 23:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <DE026503646E7F40AF97BAB98334333BF0C972@uss-republic.finepoint.com>
2005-11-03 23:17 ` [Bridge] Bridge question Hai Wang
2005-11-03 23:33 ` Stephen Hemminger [this message]
2005-11-03 23:58 ` Ben Greear
2005-11-04 13:19 ` Hai Wang
2005-11-04 17:26 ` Stephen Hemminger
2005-11-04 17:55 ` Hai Wang
[not found] ` <30be90270511041016i25b04841o18e3fdf6a855d0f7@mail.gmail.com>
[not found] ` <30be90270511041046n7b4ef6dalb3a235da6fba37a@mail.gmail.com>
[not found] ` <20051104105720.02a93a7e@dxpl.pdx.osdl.net>
[not found] ` <30be90270511041108l3c9414afp8526a70130e0f1dd@mail.gmail.com>
[not found] ` <20051104113910.322bb270@dxpl.pdx.osdl.net>
[not found] ` <30be90270511041214w2be63458s854bd8e51f850d05@mail.gmail.com>
[not found] ` <20051104123442.0d12d7ed@dxpl.pdx.osdl.net>
[not found] ` <30be90270511041319o2f97b74co83e64b2ca2937968@mail.gmail.com>
2005-11-08 13:50 ` Hai Wang
2005-11-08 17:28 ` Stephen Hemminger
[not found] <DE026503646E7F40AF97BAB98334333BF0C973@uss-republic.finepoint.com>
2005-11-03 23:48 ` Hai Wang
2005-11-03 22:16 Hai Wang
2005-11-03 23:05 ` Stephen Hemminger
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