I don't believe that ISL requires identical native VLANs at each end of a trunk, however, 802.1Q does (if I'm wrong, someone please correct me). The trunk negotiation parameter at each end of the link does not have to be identical because there can be different negotiation combinations that each port can be in to form a trunk (desirable/on, on/auto, etc.).
Shawn K. -----Original Message----- From: rose mesq [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 28, 2003 11:19 AM To: [EMAIL PROTECTED] Subject: CCNP Sw question [7:69683] I would like to know, if when you are using an Ethernet Media Trunk line operating with ISL mode between two Cisco SWs, with same identical modules, software revisions and VLANs configurations, you need to configure identical native VLANs and identical Trunk negotiation parameters at each end of the link, or not? I am a little confused..Someone could help me I appreciate... Roseli --------------------------------- Do you Yahoo!? Free online calendar with sync to Outlook(TM). Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=69707&t=69683 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
