If you define an LSP that matches your SLA then MPLS
instead using SLA driven metrics like latency, jitter, and packet loss.
Good idea. Also learned today that Bridgewave can sent out Traps with
reporting 3 different link states, each indicating how close to the minimum
DB level, to help indicate when to switch to a backup link path..
Tom DeReggi
RapidDSL & Wireless, Inc
IntAirNet- Fixed Wireless Broadband
----- Original Message -----
From: "Matt Liotta" <[EMAIL PROTECTED]>
To: "WISPA General List" <wireless@wispa.org>
Sent: Monday, March 05, 2007 2:07 PM
Subject: Re: [WISPA] Is anyone thinking about 17 and 60 ghz?
Tom DeReggi wrote:
Anyone that can afford name brand high capacity unlicensed PTPs can
afford 60Ghz.
You can go 1/2 mile for under $10,000 with Proxim. Financed over 3 years
will allow it to be paid for with the first T1 customer.
The problem is back hauling it :-) Not all WISPs will be in the position
to do that. Also take note that the metrix on shortest hop routing may
no longer be applicable. A 5 hop GB network at 2miles each may be faster
path than the 10 miles 10mbps backhaul. But what happens the .5% of the
time when the GB gets marginal? and the backup slower 10 mile links
perform better? And what happens when the link is only as fast as the
weakest link in a 5 hop path? It very well may take smarter routing to
handle the job than just OSPF, depending on the SLA one needs to deliver.
Because capacity and packet loss are the metrix that need to be
considered most.
If you define an LSP that matches your SLA then MPLS will select any
combination of layer 3 routes to encapsulate your customer's traffic. This
has the advantage of routing not based on distance metrics, but instead
using SLA driven metrics like latency, jitter, and packet loss.
-Matt
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