Tag Archives: BROADBAND

Episode 4 – Evolution of Broadband Internet

We returned to record our fourth episode on Sunday April 24, 2016.

Interesting News and Events

Roundtable Discussion – Evolution of Broadband Internet

  • 1972 Acoustic coupler modem
    • 1,200 bits by sending 600 symbols per second (600 baud) using phase shift keying
  • 1984 9600 modem (2400 baud) (V.32)
  • 1998 56k modem (8000/3429 baud) (V.90) digital modulation
  • 1988 Integrated Services for Digital Network (ISDN)
    • 64-kbit/s with 2 channels 128kbit/s
    • no market penetration in the US :   It Still Does Nothing
    • Primary Rate Interface (PRI), which is carried over an E1 (2048 kbit/s)
  • X.25 in the 1980s  universal and global packet-switched network
  • 1998 ADSL Asyncron digital subscriber line started at 8.0 Mbit/s1.0 Mbit/s
  • 2008 ADSL2+ITU G.992.5 Annex MADSL2+M 24.0 Mbit/s 3.3 Mbit/s
  • 2001 VDSL Very-high-bit-rate digital subscriber line 55 Mbit/s3Mbit/s
  • 2006 VDSL2 100 Mbit/s100 Mbit/s
  • 1997 DOCSIS Data Over Cable Service Interface Specification
  • 2013 DOCSIS 3.1   >> 10 Gbit/s downstream and 1 Gbit/s
  • FTTH fiber-to-the-home (Verizon FiOS, Google Fiber, etc)

What tools are you using?

Opengear console servers for building out-of-band management networks. Michael wrote about Opengear back in 2013 in a post titled, Opengear Console Servers – Never leave the office without one! One of the first things I did when I arrived at my new employer over 2+ years ago now was to deploy a number of Opengear appliances to make sure that we had out-of-band access to all the critical network infrastructure.


Notes: this week Mike accidentally had Audacity recording my Logitech webcam microphone and not my Blue Yeti and Dominik had his microphone volume turned up just a little too high.