Online Cisco Certification Exam–Just4exam

The photo taken on Aug. 5, 2008 shows the white cloud floating above the National Stadium, namely the Bird’s Nest, in Beijing, capital of China. (Xinhua Photo/Li Ziheng)

The photo taken on Aug. 5, 2008 shows the clear sky above the National Stadium, namely the Bird’s Nest, in Beijing, capital of China. (Xinhua Photo/Li Ziheng)

The photo taken on Aug. 5, 2008 shows the clear sky above the National Stadium, namely the Bird’s Nest, in Beijing, capital of China. (Xinhua Photo/Li Ziheng)

Someone showed me a great feature today. One of the constant pains in the network is when you get a port err-disabled on the switch. Regardless of how many times I see it, it always seems to be the last thing I check. There’s a little-known feature in the IOS called “err-disable recovery” which automatically turns a err-disabled switchport back on after 5 minutes (by default). The good news is that this command allows you to choose specific reasons where you’d like to re-enable the port, such as re-enabling ports disabled because of a port-flap instance but keeping mac-address security violations error disabled. Here’s the syntax to make it happen:

CAT3550#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
CAT3550(config)#errdisable recovery ?
  cause     Enable error disable recovery for application
  interval  Error disable recovery timer value

I’ve been a “quasi-apple fan” for years…When they came out with the MacBook Pro, I bought the 17″ giganto-screen model and have been using it to configure Cisco devices ever since. Recently, I was at a client site…he pulled out an old Dell X200 12″ laptop to configure a Cisco router. I suddenly found myself being jealous over a thin laptop (2.9 pounds) that cost 1/10th what my behemoth MacBook did. I’m thinking I’ll hit Ebay to pick one of these up for a couple hundred bucks (they’re older), but before I do…does anyone know of a better super-thin, small, lightweight laptop to use for base Cisco configs? Nothing fancy, just needs to run a terminal window.

I thought this might start a good thread for “Cool ultra-portable Cisco-configuration laptops” everyone (including me) can use.

UPDATE: I’ve settled on the Dell D400 since it has a built-in serial port.

“Currently when you take photos, the middle part of the picture is very clear but when you go to the edge, it is not so clear,” Huang said. “The curved technology will make the entire picture clear.”

 But the applications extend beyond taking better vacation photos.

 ”It really extends to all of the electronics that we use on humans. You want to have a curved surface to fit the human body. That is really the place it can be used,” he said.

 Huang said the device could be used to make better imaging equipment, such as curved sensors to monitor brain activity that follow the contours of the brain. It could even be used in the development of an artificial retina or a bionic eye.

 ”If you want to develop an eye to replace a human eye, certainly you want the shape to look like a human eye,” he said.

 ”Right now we’ve already got a camera working. It works very well with computers. It’s just how to connect the camera to the brain. That is the issue to be solved,” he said.