I currently have (2) 6509's each has an MFSC card and (2) 48 port blades. All the ports on both blades are broken up into seperate vlans. There is an ISL trunk between the (2) 6509's. I need to extend the vlans out from the 6509's to (2) 2950 switches respectably, one from each of the 6509's and be able to trunk the 2950's together. Here is a small diag.
------- isl trunk -------
- trunk? - trunk?
------- isl trunk? ---------
I am having problems with the config, hell I am having problems just gettin started. I could really use some help. I have all the config's if you need them.
Most trouble that I have seen posted on this board with ISL and 802.1q questions has to do with the 2950 config.
Make sure you have changed the management VLAN on the 2950 from the default VLAN 1 and then put the IP address on the new VLAN interface. It looks like you already understand that trunking needs to be enabled on those ports that will pass multi-VLAN traffic.
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