At 04:07 PM 2/19/01, Howard C. Berkowitz wrote:
>At 11:21 AM 2/19/2001 -0800, Priscilla Oppenheimer wrote:
>>At 08:14 AM 2/19/01, AndyD wrote:
>>
>>
>> >It looks like you need to go to
>> >layer 3 switching to do any load balancing other than this. And
>> >etherchannel is another option for aggre
At 11:21 AM 2/19/2001 -0800, Priscilla Oppenheimer wrote:
At 08:14 AM 2/19/01, AndyD
wrote:
>It looks like you need to go to
>layer 3 switching to do any load balancing other than this.
And
>etherchannel is another option for aggregating bandwidth. But
someone said
>with etherchannel using 4
t;Reply-To: Priscilla Oppenheimer <[EMAIL PROTECTED]>
>To: "AndyD" <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
>Subject: Re: Equal cost switching
>Date: Mon, 19 Feb 2001 11:21:24 -0800
>
>At 08:14 AM 2/19/01, AndyD wrote:
> >Thanks for all your help. The w
At 08:14 AM 2/19/01, AndyD wrote:
>Thanks for all your help. The way I understand it now is that with multiple
>vlans using different root bridges, you can have different vlans splitting
>the bandwidth - some going in one direction, some in the other. But if one
>link goes down, STP will then sh
]]On Behalf Of
AndyD
Sent: Monday, February 19, 2001 11:14 AM
To: [EMAIL PROTECTED]
Subject: Re: Equal cost switching
Thanks for all your help. The way I understand it now is that with multiple
vlans using different root bridges, you can have different vlans splitting
the bandwidth - some going in
Thanks for all your help. The way I understand it now is that with multiple
vlans using different root bridges, you can have different vlans splitting
the bandwidth - some going in one direction, some in the other. But if one
link goes down, STP will then shift all to the good link. This gives
Depending on the architecture of your network, you can balance the traffic
of multiple VLANs across different links by setting the root bridge to
opposite switches.
So if you have an access layer switch feeding into say 2 catalyst L3
switches, you can set the root bridge for VLAN2 to the first Ca
Per my other post, STP prevents looping traffic in general, not simply broadcasts.
Pete
*** REPLY SEPARATOR ***
On 2/19/2001 at 6:50 AM Kenneth wrote:
>Jason is right. This will defeat the purpose of Spanning Tree of creating a
>single path to a destination. The primary reaso
L PROTECTED]">news:[EMAIL PROTECTED]...
>
> >- Original Message -
> >From: AndyD <[EMAIL PROTECTED]>
> >Newsgroups: groupstudy.cisco
> >To: <[EMAIL PROTECTED]>
> >Sent: Sunday, February 18, 2001 8:58 AM
> >Subject: Equal cost switchi
Jason is right. This will defeat the purpose of Spanning Tree of creating a
single path to a destination. The primary reason this was designed was to
prevent broadcast loops.
If you want to force it to use 2 paths to one destination, use
port-channelling which statically load-balances traffic goi
>- Original Message -
>From: AndyD <[EMAIL PROTECTED]>
>Newsgroups: groupstudy.cisco
>To: <[EMAIL PROTECTED]>
>Sent: Sunday, February 18, 2001 8:58 AM
>Subject: Equal cost switching
>
> > Spanning tree is supposed to choose the one best switched
to a
certain
> >> destination, you will need to do it at layers above layer two.
> >>
> >> Pick up a copy of Radia Perlmans 'Interconnections' second edition.
Radia
> >> is the primary authority on the Spanning Tree algorithm, she will
> >enlighten
> >
Message -
> From: Jack Yu <[EMAIL PROTECTED]>
> Newsgroups: groupstudy.cisco
> To: <[EMAIL PROTECTED]>
> Sent: Sunday, February 18, 2001 1:58 PM
> Subject: Re: Equal cost switching
>
>
> > Actually, the main reason to eliminate multiple paths is because of
> &g
Give me an example of a network where layer two has no broadcasts please...
- Original Message -
From: Jack Yu <[EMAIL PROTECTED]>
Newsgroups: groupstudy.cisco
To: <[EMAIL PROTECTED]>
Sent: Sunday, February 18, 2001 1:58 PM
Subject: Re: Equal cost switching
> Actually,
the primary authority on the Spanning Tree algorithm, she will
>enlighten
>> you. This is also good solid study for deeper networking knowledge.
>>
>> ----- Original Message -
>> From: AndyD <[EMAIL PROTECTED]>
>> Newsgroups: groupstudy.cisco
>> To:
e algorithm, she will
enlighten
> you. This is also good solid study for deeper networking knowledge.
>
> - Original Message -
> From: AndyD <[EMAIL PROTECTED]>
> Newsgroups: groupstudy.cisco
> To: <[EMAIL PROTECTED]>
> Sent: Sunday, February 18, 2001 8:58
rking knowledge.
- Original Message -
From: AndyD <[EMAIL PROTECTED]>
Newsgroups: groupstudy.cisco
To: <[EMAIL PROTECTED]>
Sent: Sunday, February 18, 2001 8:58 AM
Subject: Equal cost switching
> Spanning tree is supposed to choose the one best switched path. But if
you
> set up
It will not use both paths as that would defeat the purpose of spanning
tree. To force the paths to both be used, you would have to configure the
ports in a channel. There should be plenty of good information about
spanning tree operation and port channeling at www.cisco.com
Jason Fletcher
"An
Spanning tree is supposed to choose the one best switched path. But if you
set up two equal cost paths, will it use both? Is there a way to force it
to use the bandwidth from both paths?
Thanks!
_
FAQ, list archives, and subscription info: http://www.groupstudy
19 matches
Mail list logo
