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I'm about to hook up a stonegate firewall up to a 3550 switch. I want to hook up redundant links (2 links, same subnet). Will spanning tree block one of the ports even if it the links go to a 3rd party device? Or is STP used only between Cisco devices?

I'm trying to simply allow all traffic to a specific destination have precedence over all other traffic on a Cisco 7200 router. I have never used QOS and quit frankly find a lot of the material on the web overwhelming. What would be the simplest way I could implement a policy map to make this...

I had a question on the CCNA exam (640-801) that asked me to disable all telnet access using only 3 lines. I tried blocking access through the line vty 0 4 but when I entered access-class 10 in it said that it didn't support that version. So that obviously won't work. Does anyone have...

I had a question on the CCNA exam (640-801) that asked me to disable all telnet access using only 3 lines. I tried blocking access through the line vty 0 4 but when I entered access-class 10 in it said that it didn't support that version. So that obviously won't work. Does anyone have...

Can someone explain how ISL trunking utilizes bandwidth? For example, if I'm only trunking 2 vlans, will ISL trunking give out equal amounts of bandwidth to each vlan? Or does it operate as a first come first serve type basis? Can I allocate, let say, 75% of the trunk for VLAN 1 and the other...

I am currently using 2 gigabit lasers to connect to a switch across the street. Right now they are running in gigachannel and everything is fine. We just set up a floor in another building on the other side of us so we are going to split the two gigabit lasers and add a 100baseT laser for each...

I am going to upgrade one of my field sites from 3 T1s to an OC3. My question is a rather large and general question. What type of software would I need to use, HDLC, PPP, Frame Relay, ATM, yada yada yada. I am currently using Frame Relay everywhere else and would like to stay with it. Also...

In the past I have just used my laptop to sniff 10/100 baseT traffic. Now that we have Gig to all of our servers and on our backbone I have a need to sniff out Gig problems. So I went and "borrowed" a 933, with 512 ram, 20 gig hard drive, yada yada yada...Now I am getting the feeling...