Network

Cisco Security Agent is being retired.

  • End of Life:  June 11, 2010
  • End of Sale:  December 10, 2010

SEE: EoS EoL for the Cisco Security Agent  [Cisco Security Agent] – Cisco Systems.

How can you tell when an e-mail address isn’t correctly constructed or formatted?  What about a website address or URL?   Part of recognizing bad addresses and knowing how to address an e-mail correctly is understanding and knowing what the top level domains are, and how domain names are structured.

FULL ARTICLE: TOP LEVEL DOMAINS: What are they?

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Cisco announced their new CRS-3 router today. CRS stands for “Carrier Router System” and the new router, if it lives up to Cisco’s claims (and they usually d0, somehow), can forward 322 Terabits per second which is triple that of the CRS-1 at 92 Tbps. This is another in the line of ‘big fast routers’ used by telecommunications carriers that carry the bulk of the Internet traffic. These are the ‘backbone’ providers such as AT&T, Verizon, Sprint etc.

http://newsroom.cisco.com/dlls/2010/prod_030910.html

If you want one at home, pricing starts at $90,000.

What the heck is the difference between a packet, a frame,
a protocol data thingy and a datagram?

That’s easy.  All of these things are terms for ‘chunks’ of communication data, but to use them correctly, you have to know where they are used.

Read More: Frames, Datagrams, Packets, PDU’s

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