I got a 6509 version 12.1(22)E2 that I am replacing with a 4510E version 3.40SG with Supervisor Engine 7-E.The 6509 is configured with 20 channel-group for dual fiver connection to ten 3550 switches with trunking enabled with isl encapsulation. The 6509 is the VTP server to each of the 3550 switch clients. There are 40 Microsoft Servers attached ot the Gig RJ45 port modules.
I have attached the 4510 to the 6509 with dual fiber connection configured as a channel group with trunking enabled. I am configuring the 4510 the same as the 6509 except I have to use trunking with dot1q encapsulation because isl is not supported on the 4510. I no longer want to use VTP with the 4510 and have set the it as transparent mode. Each of the 3550 switches are changed from isl trunking ecapsulation to dot1q and VTP mode is changed to transparent when they are moved from the 6509 to the 4510.
I want to move the switches over a few at a time and not all at once. The first 4 switches attached with no problems and ran with no problems for the user access to the servers still on the 6509 for a week. Then I found out DHCP was not working for the devices attahced to the switches on the 4510. I moved one of our domain controllers form the 6509 to the 4510 to fix the DHVP problem. I have now added 2 more switches with users that use an application on a server still on the 6509 and they are getting disconnect errors after loging into it and using it. Other applications on different server also on the 6509 are having no problems. I moved the switches back to the 6509 to get the users up durning business hours. I now plan on moving the server for the applicaion that was failing to the 4510 in hopes that it will fix the problem.
Is there someting I can do to speed up the connection between the 6509 and the 4510 so I can continue this transition without having to move the servers to the 4510 as I move the users?
