I have a cisco 4908 switch with 2 fiber gbics and 1 copper gbic. Actually I just added the copper gbic, because I want to connect an HP procurve 2810 48 port copper rj-45 Gigabit switch. The figer gbics were configured by a cisco guy and they have been working fine for years. I have never configured a layer3 cisco switch but have configured many catalyst 2950 switches. Through that experience I was able to get a link light on the port where I connected the HP procurve (its port 6 and the port was initially shutdown, but I enabled the port and the link light turned on). However I cant get through to my network from the HP Procurve.
I ran "show run" and tried to duplicate the configuration of one of the other fiber ports (port 7) to the newly installed copper gbic port (See the attached graphic). I added a sub interface port (6.1) and made the changes as they were set on port 7.1. However I still cant get through.
The ip address of the 4908 is 10.34.4.91.
The ip address I put on the HP procurve is 10.34.4.77. I added this ip address to port 6.1 becuase the ip address that is on port 7.1 is the ip address of the cisco 2950 that is connected to fiber gbic port 7. I figured that should be the same on port 6 and 6.1. Nevertheless, it didnt work.
Can anyone help me figure out what I'm missing. Thanks!!