<div dir="ltr"><div>Hi John,</div><div> </div><div>Thank you.</div><div> </div><div>Well, after created and enabled a new STPD (new_stpd), in case that I need to add a new vlan I just have to use the command:</div><div> </div>
<div>create vlan "new_vlan"</div><div>configure "new_vlan" tag 40</div><div>configure "new_vlan" add ports 3:19 tag</div><div>configure "new_stpd" add "new_vlan" ports 3:19, 3:20 pvst-plus</div>
<div> </div><div>And if a vlan belongs to another stpd, first I should delete it form the "old_stpd" and then add to the "new_stpd" </div><div> </div><div>configure "old_stpd" delete "old_vlan" ports 1:6</div>
<div>configure "new_stpd" add "old_vlan" ports 1:6</div><div> </div><div>Is that right?</div><div> </div><div>Thanks,</div><div>Luiz.</div><div> </div><div><span style="font-family:"Courier New""></span> </div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/4/12 <span dir="ltr"><<a href="mailto:extreme-nsp-request@puck.nether.net" target="_blank">extreme-nsp-request@puck.nether.net</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Today's Topics:<br>
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1. Re: STP (John Center)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Thu, 11 Apr 2013 16:04:36 -0400<br>
From: John Center <<a href="mailto:john.center@villanova.edu">john.center@villanova.edu</a>><br>
To: <<a href="mailto:extreme-nsp@puck.nether.net">extreme-nsp@puck.nether.net</a>><br>
Subject: Re: [e-nsp] STP<br>
Message-ID: <<a href="mailto:51671754.9000806@villanova.edu">51671754.9000806@villanova.edu</a>><br>
Content-Type: text/plain; charset="ISO-8859-1"; format=flowed<br>
<br>
Hi Luiz,<br>
<br>
On 04/07/2013 12:04 AM, Luiz J?nior wrote:<br>
> Hi guys,<br>
> I am having a hard time configuring STP on Extreme Switches properly,<br>
> and I really appreciate some help.<br>
> I have already 26 switches in my Network, at my Core layer a BD8810, and<br>
> at the access layer I have some Summit 450, 460 and 200. The thing is<br>
> the switches are not configured properly, the VLANs are configured only<br>
> on BD8810, and at the access layer, all switches are in VLAN Default, it<br>
> works but I am trying to optimize the network and made things work properly.<br>
> Moreover, I am adding to my network a new Core Switch BD8810, but to get<br>
> started I am only connecting a few switches from the access layer to the<br>
> this new one, and connect it with the core - in other words, I am only<br>
> creating a redundant path to the Old BD8810.<br>
<br>
I think the first thing you need to do is set up the VLANs on the access<br>
switches properly. If a VLAN has been assigned to the access switches,<br>
but they are configured with the default VLAN, you are going to have to<br>
create the correct VLAN on the access switches, leaving the edge ports<br>
untagged & tagging the uplink.<br>
<br>
One way I've done this in the past is to create a temporary VLAN between<br>
the core & access switches, using local IP addresses, reachable via the<br>
core switch. Then, having 2 sessions to the core switch, telnet/ssh<br>
from the one of the core switch sessions to the access switch using the<br>
temporary IP address. I'd have your changes worked out ahead of time,<br>
cut & paste them into the access switch & also tag the uplink in the<br>
other session. I had to do a major science building on campus this way.<br>
Doing this at off hours will work the best, of course!<br>
<br>
> Anyway, I have tried to follow extreme networks guides and white papers,<br>
> however, I am still not getting things right. I couldn't understand how<br>
> STPD works, I've tried to create and add some vlans to it, but many<br>
> errors have appeared, as such: Error: Please configure a stpd dot1q tag<br>
> first, or you can't add this VLAN or port to SPTD and so on. And as a<br>
> matter of fact, once I have configured a new SPTD on my BD8810 and on my<br>
> Summit 200, the problem is that each one has itself as the root bridge,<br>
> although the trunk port was working and the Summit has full connection<br>
> to the network. At this stage, I want to my Old BD8810 be the root<br>
> bridge for all VLANs.<br>
<br>
Once you have the VLANs spanning from the core to the edge, create the<br>
STP instance. I usually assign the STP instance a mode of dot1w, with a<br>
default encapsulation of pvst-plus. (We have a mixed environment & this<br>
is the common denominator.) You need to first add the VLAN to the STP<br>
with the ports:<br>
<br>
create stpd LS-I-32-STP<br>
configure stpd LS-I-32-STP mode dot1w<br>
configure stpd LS-I-32-STP default-encapsulation pvst-plus<br>
configure stpd LS-I-32-STP add vlan LS-I-32 ports 1:6 pvst-plus<br>
configure stpd LS-I-32-STP add vlan LS-I-32 ports 1:7 pvst-plus<br>
configure stpd LS-I-32-STP add vlan LS-I-32 ports 1:8 pvst-plus<br>
configure stpd LS-I-32-STP add vlan LS-I-32 ports 1:9 pvst-plus<br>
<br>
You can then modify the STP instance with things like link-type:<br>
<br>
configure stpd LS-I-32-STP ports link-type point-to-point 1:6<br>
<br>
> So, how could I configure on a switch a new STPD (With a new one, I am<br>
> expecting not to made a mess on my network), with a new Carrier VLAN<br>
> (I think this is a sort of Native vlan, right?) and add new vlans to<br>
> it, and also old vlans that it belongs to a other STPD (e.g. s0), inside<br>
> a trunk port.<br>
<br>
Once you've assigned a VLAN + ports to the the STP instance, then you<br>
can configure the tag & enable the STP:<br>
<br>
configure stpd LS-I-32-STP tag 32<br>
enable stpd LS-I-32-STP<br>
<br>
Assigning a priority of 0 on the core switch will make it the root:<br>
<br>
configure stpd LS-I-32-STP priority 0<br>
<br>
When you're finished with this on the core switch, you can add many of<br>
the same settings to the edge switches, making the link-type for the<br>
uplink point-to-point & the other untagged ports "edge".<br>
<br>
HTH<br>
<br>
-John<br>
<br>
--<br>
John Center<br>
Villanova University<br>
<br>
<br>
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End of extreme-nsp Digest, Vol 102, Issue 5<br>
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