I always hear "What happened to IP version 5?" But we've seen the answer many times. "Some experimental testing version".
While reading Charles Kozierok's excellent TCP/IP Guide, I found the history of why IPv4 was actually the first version of IP as in a Layer 3 on it's own. The addressing layer was part of the original Network Control Program and then Transmission Control Program combined into a single Layer3 and 4 functionality. TCP became Transmission Control Protocol by its 'fourth iteration'.
Friday, June 22, 2012
Tuesday, June 19, 2012
Why hasn't networking followed Moore's Law ?
Andy Bechtolsheim's keynote at NANOG55 in Vancouver looks into what's been going on with networking versus Moore's Law:
Follow the link to his slides in PDF. There are some fantastic graphs on:
Follow the link to his slides in PDF. There are some fantastic graphs on:
- Server 10/40/100G Adoption Cycle
- Total Datacenter Switch Revenue by Protocol & Speed
Today's custom switch silicon support 64 10G ports on a single chip but forecast to scale by 4X in the next 3 years. He wraps up the presentation looking into ways to alleviate the current high cost of optics slowing down 40G/100G adoption.
Wednesday, June 6, 2012
IPv6 Day
Early today, major web sites enabled their DNS 'quad A' or AAAA entries.
These include google.com, bing.com, facebook.com, yahoo.com, youtube.com and aol.com.
I especially like Facebook's IPv6 address:
2A03:2880:2110:3F03:FACE:B00C::
It looks like traffic to Google over one backbone immediately doubled... Albeit up to almost 2% of total traffic.
I'm told that unlike last year, these updates are planned to be permanent. Sure is a step in the right direction!
These include google.com, bing.com, facebook.com, yahoo.com, youtube.com and aol.com.
I especially like Facebook's IPv6 address:
2A03:2880:2110:3F03:FACE:B00C::
It looks like traffic to Google over one backbone immediately doubled... Albeit up to almost 2% of total traffic.
I'm told that unlike last year, these updates are planned to be permanent. Sure is a step in the right direction!
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