Hi, 802.1q is supported by Cisco on FastEthernet and GigabitEthernet, and not on Ethernet. Check out: http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a00800ca801.html#xtocid18
ISL is supported by Cisco on Ethernet, FastEthernet and GigabitEthernet. Hope this helps. Regards, Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=71064&t=70901 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]