[c-nsp] eigrp and ospf on same switch

[Tassos Chatzithomaoglou]

If the mutual redistribution happens on the same router, you don't need to worry.

--
Tassos


Dan Letkeman wrote on 2/3/2008 5:54 μμ:
> Ben,
> 
> Thanks for the information.  I will try removing the default metric
> commands to see if they are needed.
> 
> In what kind of scenario can redistributing both routing protocols
> cause a routing loop?
> 
> Here is a crude diagram on how the system is setup:
> 
> Workstations---linux router w/ospf----cisco 3560 w/ospf &
> eigrp----cisco 3560 w/eigrp---workstations
> 
> If I didn't redistribute both ways the devices on both sides could not
> access each other.
> 
> Dan.
> 
> On Sun, Mar 2, 2008 at 1:32 AM, Ben Steele <ben at internode.com.au> wrote:
>>  On 02/03/2008, at 4:55 AM, Dan Letkeman wrote:
>>  >  Is there a simple explanation as to how
>>  > the metric is calculated for eigrp?
>>
>>  5 things, Bandwidth, Delay, Reliability, Load and MTU.
>>
>>  I used to use the "Big Dogs Really Like Meat" acronym when I was first
>>  learning about it to help remember :)
>>
>>  Most people should really only need to worry about the first two when
>>  modifying for redistribution, that is bandwidth and delay, the
>>  remaining 3 can generally just be set to 255 1 and 1500 respectively,
>>  unless you see fit to change them for a specific reason.
>>
>>  As for your config, for starters try removing your default-metrics for
>>  each routing protocol as it appears you've added them not really
>>  knowing why you have, best to leave these as default for now, as for
>>  redistributing this is where you do want to specify them so the
>>  protocol knows how to treat these foreign routes and how to advertise
>>  them to it's peers.
>>
>>  Also it's very unwise to redistribute protocol's both-ways, you are
>>  asking for a routing loop, you should only need to do this one-way,
>>  what is your reason for doing it both ways?
>>
>>  Have a read of http://www.cisco.com/warp/public/103/eigrp-toc.html
>>  especially the redistributing section.
>>
>>  Cheers
>>
>>  Ben
>>
>>
>>
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