I know the older 2900's so per vlan spannign tree...heh I found out the hard way.....
>>> "Kent Yu" 03/11/02 01:31PM >>> Dave, If memory serves, cisco's dot1q implementation always uses per vlan spannging tree. Kent ""MADMAN"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > add the CAT4K to your list of dot1q only devices. The old arguement > of dot1q not supporting per VLAN spanning is also moot. > > Dave > > Patrick Ramsey wrote: > > > > well here is a quote from cisco's site > > > > http://www.cisco.com/warp/public/473/43.html > > > > "Catalyst 2950 series switches only support 802.1q trunking. They do not > > support ISL trunking" > > > > and the 2950 is one of their best of breed switches...maybe this means they > > will begettign rid of isl soon... > > > > -Patrick > > > > >>> "Audy Bautista" 03/11/02 10:18AM >>> > > I've always had the same question in my head. In our environment (all > > Cisco; at least 4 6509s and about a dozen 2948s, some 3548s, 2924s, etc.) > we > > use 802.1q mostly because the 2948s don't support ISL. We even trunk the > > 6509s using 802.1q even though of course 6509s support ISL and 802.1q. But > > I don't know which one is better, and I've done similar searches in the > past > > for more info; no luck. > > > > Audy > > > > ""Kaminski, Shawn G"" wrote in message > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Repost. First one didn't make it. > > > > > > > -----Original Message----- > > > > From: Kaminski, Shawn G > > > > Sent: Friday, March 08, 2002 2:54 PM > > > > To: 'Groupstudy' > > > > Subject: ISL or 802.1q? > > > > > > > > After a search of the archives and reading the posts, I realize this > has > > > > been discussed before. I also searched CCO. However, there didn't seem > > to > > > > be a clear answer on what I was looking for. We have two Distribution > > > > Cisco 6509 switches trunked together and there is an argument as to > > > > whether we should use ISL or 802.1q on this trunk. Our network is all > > > > Cisco. Some people are saying 802.1q on everything because Cisco is > > > > leaning towards this direction anyway. Some say ISL should be used > > between > > > > the Distribution switches and 802.1q between Distribution and Access > > > > switches. I don't know why because I couldn't find anything on this. > > Some > > > > of the people here keep saying that ISL has more "features" than > 802.1q. > > > > Could some of you please give your opinions about what you would use > > (ISL > > > > or 802.1q) in this situation? > > > > > > > > Thanks, > > > > Shawn G. Kaminski > > > > EDS Network Engineering - DowNET > > >>>>>>>>>>>>> Confidentiality Disclaimer This email and any files > transmitted with it may contain confidential and > > /or proprietary information in the possession of WellStar Health System, > > Inc. ("WellStar") and is intended only for the individual or entity to whom > > addressed. This email may contain information that is held to be > > privileged, confidential and exempt from disclosure under applicable law. > If > > the reader of this message is not the intended recipient, you are hereby > > notified that any unauthorized access, dissemination, distribution or > > copying of any information from this email is strictly prohibited, and may > > subject you to criminal and/or civil liability. If you have received this > > email in error, please notify the sender by reply email and then delete > this > > email and its attachments from your computer. Thank you. > > > > ================================================================ > -- > David Madland > Sr. Network Engineer > CCIE# 2016 > Qwest Communications Int. Inc. > [EMAIL PROTECTED] > 612-664-3367 > > "Emotion should reflect reason not guide it" >>>>>>>>>>>>> Confidentiality Disclaimer <<<<<<<<<<<<<<<< This email and any files transmitted with it may contain confidential and /or proprietary information in the possession of WellStar Health System, Inc. ("WellStar") and is intended only for the individual or entity to whom addressed. This email may contain information that is held to be privileged, confidential and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, you are hereby notified that any unauthorized access, dissemination, distribution or copying of any information from this email is strictly prohibited, and may subject you to criminal and/or civil liability. If you have received this email in error, please notify the sender by reply email and then delete this email and its attachments from your computer. Thank you. ================================================================ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=37885&t=37859 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
