Date: Fri, 26 Mar 2010 16:43:23 GMT
From: msokolov@ivan.Harhan.ORG (Michael Sokolov)> I've noticed over the last 3 years or so that TDM, specifically T-1, access
> and transport has been in a steady decline. Customers are moving to FTTH
> and cable, or going WiMAX and Metro-Ethernet. Ethernet seems to have taken
> an even bigger bite out of DS-3. The bigger pipes seem to favor ethernet. A
> recent upgrade from OC-3 to GigE transport actually saved us a large chunk
> of money.
>
> I'm wondering if others are seeing the same behavior, if it's
> market-dependant, or if I'm just imagining things.Unfortunately what you are seeing is indeed where the world is going,
and it is extremely painful to watch. My personal preference is the
direct opposite of that: Ethernet for non-LAN use is my very antithesis,
I hate it to the core of my being. V.35/HDLC forever for me! I will
continue using HDLC over traditional synchronous serial WAN media for as
long as I am alive.MS
P.S. This message is being sent from a VAX running a variant of 4.3BSD
(Quasijarus). Almost the entire ARPA Internet software stack that's
running on my VAXen is mostly unchanged from how it was in 1988.
Much as I love Sonet and the like, I will channel Randy and say that I
hope all of my competitors do this. (OK. We really don't have
competitors.)
And, if you are using a 1988 TCP stack on a 4.3 system, you are not
likely to ever efficiently utilize a higher speed link and will not
behave well on any link. TCP has come a long way in the past 12
years. (Of course, I can't guess what "mostly unchanged" means.)