Mike,
ISL is an encapsulation protocol that enables switches to carry multiple
VLANS on the same wire/uplink (think of it as an extension to the switch
backplane). So packets that are present on an ISL (or 802.1Q) trunk are
still tagged with their corresponding VLAN.
Now, since switches work on layer 2 of the OSI model, to communicate
between 2 VLANS you need a router. If your router and switch support
ISL trunking (or 802.1Q) you need one link from the switch to the router
to route between the VLANS. But If you don't have ISL. Each VLAN would
connect to the router on it's own interface. For instance, you need 2
Ethernet ports on the router and you set up 2 subnets , and it should
work.
Let me know if you need more help mike.
Mohammed.
___________________________________
UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html
FAQ, list archives, and subscription info: http://www.groupstudy.com
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
