All of our switches in our network are Cisco ISL Trunks. I recently purchased a WS-C2960-8TC switch and just realized it only supports DOT1q.This trunk port connects to a 3508G, which has other ISL trunks to other facilities/switches on separate VLA...

I am trying to configure a HWIC-1GE-SFP on a 2821 as a 802.1q trunk to connect to a 3508 switch.If i try a show int gig x/x/x I get "gig x/x/x is not a switchable port"I read the documentation that these modules do support dot1q VLAN's so what am I m...

doing a switch migration/consolidation into a 4500. I am trying to consolidate a 3512 DMZ switch into a 4506 with a 24-port FE card (among others). Current DMZ 3512 switch is VLAN 1 10.1.1.254/24 --> Gateway is 10.1.1.1 (ASA5510)How would I go abou...

Currently use cisco1750 router for voice using ip address 10.11.144.229. Using a cisco1720 router 10.11.144.254 for data and the default-gateway.Recently purchased a 2801 to consolidate these routers into a single router. Would like to know if this...

have a handful of 7940 phones when you pickup the handset there is no dial tone unless you hit the headset button then it gets a dial tone. Any ideas what can be causing this?