That is how all ospf costs default based on ether link speed. In reality it is
a giant math problem, you don't want to assign costs based on the defaults if
you don't have a wired network.
You should actually set costs higher and not use single digits so you have
wiggle room. You also want to try and eliminate the static routes or atleast
set their metric so high that they are last resort.
Redistributed routes are important as well. It is a balancing act.
Sent from my Verizon Wireless 4G LTE Smartphone
-------- Original message --------
From: Scott Reed <sr...@nwwnet.net>
Date: 07/20/2013 7:59 PM (GMT-07:00)
To: WISPA General List <wireless@wispa.org>
Subject: Re: [WISPA] [WISPA - Offlist] OSPF Tutorial/Guide
I know that is how Cisco figures default values, but it is not always the best.
I may have a 10M wire link and a 54M wireless link. The average data flow is
5M, so want the 10M wire to be the primary because it is more reliable. I
would give it a lower cost than the faster wireless link.
If you have a wireless link that you know suffers from temperature inversion
problems every morning and one that doesn't, but is slower, you may want the
slower, more reliable link to have the lower cost so that your reliability
stays high, but if that link goes down, you still have a link to use.
As with most things in this business, there are general guidelines, but you
also have to know your network and make informed decisions, not just follow
some rule of thumb.
On 7/20/2013 8:06 PM, can...@believewireless.net wrote:
Cost should be set based on the speed of the link. So, if you have a 1 Gbps
link in your network, set the cost of routers on either side to 1. If you have
a 333 Mbps link, set the cost of the routers on either side to 3. 100 Mbps
link? Cost = 10. So, your 1 Gbps link speed is really 1000 Mbps so cost =
1000 / Speed.
On Sat, Jul 20, 2013 at 5:24 PM, Bob iPhone Kim <evdo.hs...@gmail.com> wrote:
Scott,
Can you help remotely?
ALL... do we have a services board anywhere... kinda like a craigslist for our
group?
On Sat, Jul 20, 2013 at 12:55 PM, Scott Reed <sr...@nwwnet.net> wrote:
I have a network with about 800 devices running OSPF. If you need more help,
let me know.
I do consulting for several WISPs helping get from bridged to routed, setting
up routers correctly, etc.
If is is easy, no charge. If is going to take some time/effort, I charge
$65.00/hour for the actual time involved, no minimum. Let me know what I can
do to help.
--
Robert Q Kim
iPhone Repair Connection San Diego
http://www.youtube.com/watch?v=yiSr78Kk8ZU
2611 S Coast Highway
San Diego, CA 92007
310 598 1606
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--
Scott Reed
Owner
NewWays Networking, LLC
Wireless Networking
Network Design, Installation and Administration
Mikrotik Advanced Certified
www.nwwnet.net
(765) 855-1060
(765) 439-4253
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