On Sun, Mar 13, 2011 at 5:40 PM, Jeff Wheeler <jsw@inconcepts.biz> wrote:
On Sun, Mar 13, 2011 at 3:42 PM, Christopher Morrow <morrowc.lists@gmail.com> wrote:
not need that info, but the edge likely does, yes? Have 100g customers today? planning on having them in the next ~8/12/18 months?
If you did your purchasing the way Bill Herrin suggests, you'd buy a box with 100GbE ports for a POP or branch that is not projected to have 100GbE customers, just because it's the biggest box.
Jeff, No, Chris wouldn't, because that misrepresents my suggestion. What I suggested is that you spend your efforts making solid projections and then buy a box that satisfies the targeted function for the foreseeable future. That way you don't spend manpower replacing it until something materially different than the projections occurs. Which avoids some mistaken-driven and defect-driven outages and has a myriad of similar secondary effects. Circuit outages are minimized when the CWA is on strike. Why? Because nobody's futzing with the equipment. There's a lesson there: maximize reliability by minimizing change. For your information, the ISP where I was the operations director survived the burst of the bubble. While revenues shrunk significantly it was still in the black in 2004 when I left. To the best of my knowledge it remained in the black until it was sold a few years later. There were a number of causes, but one of them was that in the key time frames we were able to crunch the capital budget to almost nothing, there being sufficient excess capacity in most of the equipment we already owned.
His position is that man-power to do an upgrade is always more costly than capital dollars for the actual equipment, and ignores the fact that the biggest box is by no means guaranteed to offer new *features* which may be required.
My position is that the terminal size of the IPv4 table is visible on the horizon. Now that it's part of the foreseeable future, I'd like to be able to buy boxes that support it. Regards, Bill Herrin -- William D. Herrin ................ herrin@dirtside.com bill@herrin.us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004