On Thu, 2009-10-29 at 10:33 -0500, Jory Privett wrote: > For all of you routing gurus out there, On MikroTiks version, > or any other brand, of OSPF what is the maximum number of routes > or routers in a single OSPF Area? Is this only limitied by CPU/Memory > or is there something else that dictates it?
While there may be an actual maximum number, I cannot find that in the standard. In practice, however, I have found that keeping the number of interfaces in an area under 100 to be helpful. Realistically, that is a very large number. Also, it is important to note the difference between "interfaces" and "routers" in OSPF networks. An "OSPF Router" (which can be viewed in Mikrotik in the GUI) is a device that is participating in the OSPF network on any interface. An "OSPF interface" is what gets counted as a "hop" and is, therefore, part of the path cost calculation. So, the short answer is: Keep the number of interfaces around (or below) 100 or so. I have seen SOME people who recommend under 200 ROUTERS per AS. I have not run into any sorts of limitations in that regard, but there are only a few networks that I work on that have enough routers to even reach that number. :-) -- ******************************************************************** * Butch Evans * Professional Network Consultation* * http://www.butchevans.com/ * Network Engineering * * http://www.wispa.org/ * Wired or Wireless Networks * * http://blog.butchevans.com/ * ImageStream, Mikrotik and MORE! * ******************************************************************** -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
