They can co-exist. dj wrote:
>Have a production campus LAN network primarily running with 3508Gs and >3524XL data switches with gigabit fiber uplinks. All switches are >currently running ISL Vlan trunking between the uplink ports. There's >also a 2620 router running ISL fastethernet subinterfaces configured >with encapsulation ISL. > >I have some non-cisco network devices that only support 802.1q vlan >trunking. I already know the 802.1q trunking on non-cisco equipment >works ok with cisco devices running 802.1q trunking. > >However, when I deploy the non-cisco equipment in the production campus >LAN, can I have some trunk ports running 802.1q trunking and other trunk >ports running ISL. Bottom line: Can ISL and 802.1q co-exist or do I >have to migrate entire LAN to 802.1q vlan trunking?? > >regards, >dj >**Please support GroupStudy by purchasing from the GroupStudy Store: >http://shop.groupstudy.com >FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73515&t=73511 -------------------------------------------------- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html

