RE: [SPAM-HEADER] - Re: Point to Point Ethernet - Email has different SMTP TO: and MIME TO: fields in the email addresses
Prices of terrestrial SDH/SONET cards are very low for transport providers. For customers I believe there is a greater divergenc between the Ethernet and SONET/SDH costs. A strong hunch based on what clients tell me Cisco charges for SONET/SDH interfaces. I doubt a lot of people would think that SDH/SONET cards for *routers* are inexpensive. And yes, I have a reasonable idea of what kind of discounts are available out there... Steinar Haug, Nethelp consulting, sth...@nethelp.no Transport in my world is not Layer 3. It's Layer 2: Ethernet, SDH, SONET, waves. But my clients are mostly Layer 3. So you and I are in fundamental agreement. Roderick S. Beck Director of European Sales Hibernia Atlantic
RE: [SPAM-HEADER] - Re: Point to Point Ethernet - Email has different SMTP TO: and MIME TO: fields in the email addresses
Brian Raaen wrote: Hate to say it, but also some of the cost on the circuits can be blamed on uncle Sam. ATM circuits are currently tariffed that same way are voice circuits. These tariffs are not charged to Ethernet because it is a 'data circuit'. At least that was the case a little while back. ? Are you sure it's Uncle Sam? My experience is that voice tariffs are always cheaper than data; telco's mantra is still I Smell Dollars Now. The telcos were mightily pissed when we redesigned protocols to pass over voice circuits instead of requiring data circuits. Usually, non-tariffed lines seem to be much more expensive, as the account manager says Oh, that special order will have to be approved by HQ. Strictly speaking, it's not Uncle Sam, but the PUCs who review the tariffs. I would view it fundamentally as a lack of competition. Who can provide ATM backhaul from central offices? In many cases just the incumbent. Roderick S. Beck Director of European Sales Hibernia Atlantic
Re: [SPAM-HEADER] - Re: Point to Point Ethernet - Email has different SMTP TO: and MIME TO: fields in the email addresses
The reality is that is an SDH/SONET backbone underlying most of these Ethernet networks. That may be so (however, numbers for the national provider I work for do not tend to bear this out). But does it matter? People presumably use Ethernet because it is inexpensive, easily available, well known, etc. Yes, if the underlying technology is SDH *or* DWDM with an SDH type interface, I know *I* would prefer to use the SDH interface - because it gives me the SDH OAM we all know and love. But if my router vendor charges me a 10-30% premium for using cards with an SDH interface, then Ethernet is going to win every time... There are vendors that supply cards where the optics can be reconfigured for 10Gig Ethernet LAN *or* WAN (SDH) interface, and where you don't have to pay a premium. The Juniper MX series is an example. But real SDH cards with the corresponding lower encapsulation overhead still come at (high) price. Steinar Haug, Nethelp consulting, sth...@nethelp.no
