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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...

The test has a pop up window that says something like "command not support in this version"...

Graham, I tried that also, didn't support that version either. Any other suggestions?

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...

Awesome, thanks! I'll hit the books this week! Thanks for your help!

Thanks, on the same note, is there a way that I can specify how long it takes for spanning tree to bring up the back up link? The Gigabit might bounce time to time (due to rain/fog/wind/whatever) and I don't really want the 100baseT to come up unless the gigabit is down for a couple of seconds...

hahahaa...you got me!! True true, you can just cut and paste the setting.

You might have a loop somewhere on your switch/network. You might have a Broadcast storm happening.

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...

Nope, unfortunatly you can't. The only other option is to you the http gui. It slow and cumbersome, but it works.

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...

ahhhh Big help Shnyper!!!! Thanks a lot!!!

On that same note Shnypr, how exactly does the "load balancing" on etherchannel work? Or do they load balance at all? If they are load balancing, then in theory, if you look at your two etherchannel ports, shouldn't you have the same or close to the same amount of traffic on the...

Okay, you guys got me, thanks for the info!! I guess I will start mowing lawns and washing cars to save enough money purchase this card. JK : ) Thanks again!

Spencer P, So your saying the only way sniff Gig with NAI Sniffer is to use NAI $20,000 dual channel Gig card?? This seems a bit ridiculous that NAI would provide a software that can only be used with a $20,000 NIC card!!! Am I understanding this right? I can't use a third party Gig NIC?

show int f0/X x=port number

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...