RE: cisco 2950 and trunk negotiation [7:63466]
I am pretty sure that the 2950's only support dot1q trunking and Cisco never plans to change that. I remember reading that in an article. The 2950's are basically taking over the 1900 series which is ironic because the 1900's only support isl. We personally use dot1q on all our trunks because you can do more with traffic prioritization with dot1q headers. -Original Message- From: John Brandis [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 20, 2003 9:22 PM To: [EMAIL PROTECTED] Subject: cisco 2950 and trunk negotiation [7:63466] Hi, Any one else noticed that on the 2950, and I guessing other catalyst low end switch's, that one cant define the encapsulation of the trunk link. Yes it will auto negotiate, however I feel that control has been pulled away from me. I also dont like on the 4006, that you can only define this same setting (if you have a GBIC Module) for the first 2 GBIC ports. The rest of the ports default to dot1q. Thankfully I use this, but I am betting that there are the odd people out there who may use ISL... Can some one tell me, is possible, how to define what type of trunk I wish to use on the 2950 using IOS 12.1(11) Thanks all John (please correct where I am wrong) ** visit http://www.solution6.com UK Customers - http://www.solution6.co.uk ** The Solution 6 Head Office and NSW Branch has moved premises. Please make sure you have updated your records with our new details. Level 14, 383 Kent Street, Sydney NSW 2000. General Phone: 61 2 9278 0666 General Fax: 61 2 9278 0555 ** This email message (and attachments) may contain information that is confidential to Solution 6. If you are not the intended recipient you cannot use, distribute or copy the message or attachments. In such a case, please notify the sender by return email immediately and erase all copies of the message and attachments. Opinions, conclusions and other information in this message and attachments that do not relate to the official business of Solution 6 are neither given nor endorsed by it. * Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=63507t=63466 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: cisco 2950 and trunk negotiation [7:63466]
The reason that the 2950's do not support ISL trunking is that Cisco is gradually moving towards supporting the major standards more and proprietary standards less. As part of this plan they are beginning to make switches that only support dot1q trunking. At least that's what a TAC engineer told me. However, this brought up the question, What about EIGRP? He assured me that some of the proprietary stuff like EIGRP, where there is a real tangible benefit to using it, will stay. Robert John Brandis wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi, Any one else noticed that on the 2950, and I guessing other catalyst low end switch's, that one cant define the encapsulation of the trunk link. Yes it will auto negotiate, however I feel that control has been pulled away from me. I also dont like on the 4006, that you can only define this same setting (if you have a GBIC Module) for the first 2 GBIC ports. The rest of the ports default to dot1q. Thankfully I use this, but I am betting that there are the odd people out there who may use ISL... Can some one tell me, is possible, how to define what type of trunk I wish to use on the 2950 using IOS 12.1(11) Thanks all John (please correct where I am wrong) ** visit http://www.solution6.com UK Customers - http://www.solution6.co.uk ** The Solution 6 Head Office and NSW Branch has moved premises. Please make sure you have updated your records with our new details. Level 14, 383 Kent Street, Sydney NSW 2000. General Phone: 61 2 9278 0666 General Fax: 61 2 9278 0555 ** This email message (and attachments) may contain information that is confidential to Solution 6. If you are not the intended recipient you cannot use, distribute or copy the message or attachments. In such a case, please notify the sender by return email immediately and erase all copies of the message and attachments. Opinions, conclusions and other information in this message and attachments that do not relate to the official business of Solution 6 are neither given nor endorsed by it. * Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=63509t=63466 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: cisco 2950 and trunk negotiation [7:63466]
Robert is correct, Cisco is moving to the gear to support most of the standards. Most of the new switches will be on Dot1q/Dot1p since thats the standard for layer 2EIGRP is still in use by a lot of places so I believe it will stay for a good while.. Larry Letterman Network Engineer Cisco Systems - Original Message - From: Robert Edmonds To: Sent: Friday, February 21, 2003 6:41 AM Subject: Re: cisco 2950 and trunk negotiation [7:63466] The reason that the 2950's do not support ISL trunking is that Cisco is gradually moving towards supporting the major standards more and proprietary standards less. As part of this plan they are beginning to make switches that only support dot1q trunking. At least that's what a TAC engineer told me. However, this brought up the question, What about EIGRP? He assured me that some of the proprietary stuff like EIGRP, where there is a real tangible benefit to using it, will stay. Robert John Brandis wrote in message news:[EMAIL PROTECTED] Hi, Any one else noticed that on the 2950, and I guessing other catalyst low end switch's, that one cant define the encapsulation of the trunk link. Yes it will auto negotiate, however I feel that control has been pulled away from me. I also dont like on the 4006, that you can only define this same setting (if you have a GBIC Module) for the first 2 GBIC ports. The rest of the ports default to dot1q. Thankfully I use this, but I am betting that there are the odd people out there who may use ISL... Can some one tell me, is possible, how to define what type of trunk I wish to use on the 2950 using IOS 12.1(11) Thanks all John (please correct where I am wrong) ** visit http://www.solution6.com UK Customers - http://www.solution6.co.uk ** The Solution 6 Head Office and NSW Branch has moved premises. Please make sure you have updated your records with our new details. Level 14, 383 Kent Street, Sydney NSW 2000. General Phone: 61 2 9278 0666 General Fax: 61 2 9278 0555 ** This email message (and attachments) may contain information that is confidential to Solution 6. If you are not the intended recipient you cannot use, distribute or copy the message or attachments. In such a case, please notify the sender by return email immediately and erase all copies of the message and attachments. Opinions, conclusions and other information in this message and attachments that do not relate to the official business of Solution 6 are neither given nor endorsed by it. * [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=63519t=63466 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
cisco 2950 and trunk negotiation [7:63466]
Hi, Any one else noticed that on the 2950, and I guessing other catalyst low end switch's, that one cant define the encapsulation of the trunk link. Yes it will auto negotiate, however I feel that control has been pulled away from me. I also dont like on the 4006, that you can only define this same setting (if you have a GBIC Module) for the first 2 GBIC ports. The rest of the ports default to dot1q. Thankfully I use this, but I am betting that there are the odd people out there who may use ISL... Can some one tell me, is possible, how to define what type of trunk I wish to use on the 2950 using IOS 12.1(11) Thanks all John (please correct where I am wrong) ** visit http://www.solution6.com UK Customers - http://www.solution6.co.uk ** The Solution 6 Head Office and NSW Branch has moved premises. Please make sure you have updated your records with our new details. Level 14, 383 Kent Street, Sydney NSW 2000. General Phone: 61 2 9278 0666 General Fax: 61 2 9278 0555 ** This email message (and attachments) may contain information that is confidential to Solution 6. If you are not the intended recipient you cannot use, distribute or copy the message or attachments. In such a case, please notify the sender by return email immediately and erase all copies of the message and attachments. Opinions, conclusions and other information in this message and attachments that do not relate to the official business of Solution 6 are neither given nor endorsed by it. * Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=63466t=63466 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: cisco 2950 and trunk negotiation [7:63466]
I read somewhere on cisco.com that the 2950s do not support ISL (it's true, I tested it) the 2912 and 2924 series support both (2916M need a special module for trunk), an the 1900XL series just support ISL (also tested). I'm not sure about the 2820 series but as I think they woul have the same trunking feature as the 1900 series. Somewhere on cisco.com is a doc page about the trunking features along the different generations of low end switches Regards, Jose John Brandis escribis en el mensaje [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi, Any one else noticed that on the 2950, and I guessing other catalyst low end switch's, that one cant define the encapsulation of the trunk link. Yes it will auto negotiate, however I feel that control has been pulled away from me. I also dont like on the 4006, that you can only define this same setting (if you have a GBIC Module) for the first 2 GBIC ports. The rest of the ports default to dot1q. Thankfully I use this, but I am betting that there are the odd people out there who may use ISL... Can some one tell me, is possible, how to define what type of trunk I wish to use on the 2950 using IOS 12.1(11) Thanks all John (please correct where I am wrong) ** visit http://www.solution6.com UK Customers - http://www.solution6.co.uk ** The Solution 6 Head Office and NSW Branch has moved premises. Please make sure you have updated your records with our new details. Level 14, 383 Kent Street, Sydney NSW 2000. General Phone: 61 2 9278 0666 General Fax: 61 2 9278 0555 ** This email message (and attachments) may contain information that is confidential to Solution 6. If you are not the intended recipient you cannot use, distribute or copy the message or attachments. In such a case, please notify the sender by return email immediately and erase all copies of the message and attachments. Opinions, conclusions and other information in this message and attachments that do not relate to the official business of Solution 6 are neither given nor endorsed by it. * Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=63468t=63466 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
