Hi,I am going to connect a Cisco Catalyst 5509 (new switch) with a Cisco Catalyst 6509 (production switch) using an EtherChannel (two FastEthernet ports). I dont want my new switch to be the Root Bridge, so I have configure the Root Guard feature for...

Hi,we have a 7507 router, VIP2-50, IOS 11.1(33)CC1. We have to upgrade to some version that supports VIP6-80. We had tried to upgrade to 12.1(23)S1 but I think we have been affected by CSCdu63564 bug, and we had to downgrade to 11.1(33)CC1 again (the...

Hi,we have NASes AS5300 running IOS 12.1(14). We want to activate "modem call-record terse" command in these NASes and we would like to know if this could be dangerous or problematic.Is there any other command similar to this?. Is this the correct co...

Hi,We have upgraded to 12.1(12c)EC our ubr7246VXRs. We have discovered a new cable modem stated since then: resetting. Could you please explain me what this state means and when it happens?.Thank you.

Hi,we have a router "cisco 2500 (68030) processor (revision N) with 2048K/2048K bytes of memory", IOS 11.3(3). This routers started giving the following error continuously:2503BP uptime is 2 minutesSystem restarted by error - Zero Divide, PC 0x311D51...