04-25-2007 10:22 PM - edited 03-05-2019 03:41 PM
what is the maximum number of default routes i can use with ip cef? if there is no maximum, is there a recommended number for the cpu to work ok or something?
Solved! Go to Solution.
04-26-2007 03:45 AM
Rick,
Thanks for pointing that out. Sorry, I overlooked the original post. Yes, it depends on the max-paths values to have the maximum routes for the same destination. As I know, max
paths in global ip routing table is 6 on most of the releases, however, its been made to 16 starting from 12.3 IOS train. So the original poster can have maximum 16 default routes.
-amit singh
04-25-2007 10:53 PM
What is the hardware you are using. It depends on what kind of router/hardware used. For example Sup720-3B on Cat6500 supports 192,000 routes.
-amit singh
04-25-2007 11:03 PM
3845
04-26-2007 03:21 AM
Friend,
Do you want to know how many FIB entries are possible or how many default route entries?
I have successfully used 9 default routes and all the entries were there in the CEF FIB table. I couldn't find a document stating the max supported though
MS_OBELIX_NOD_R01#sh ip cef
Prefix Next Hop Interface
0.0.0.0/0 10.255.252.149 Serial1/1/0:0
10.255.252.145 Serial1/0/0:0
10.255.252.29 Serial0/3/0:0
10.255.252.25 Serial0/0/0:0
10.255.252.21 Serial0/2/0:0
10.255.252.17 Serial0/1/0:0
10.254.0.57 Serial0/1/1:0
10.254.0.53 Serial0/2/1:0
10.254.0.49 Serial0/0/1:0
0.0.0.0/32 receive
The numbers will definitely increase if you have some links bundled using multilink
HTH, rate if it does
Narayan
04-26-2007 03:21 AM
Amit
You give a very good answer about the maximum number of routes, but I believe that the original question was the number of default routes that can be used. Is the answer to that not the value of max-paths? max-paths traditionally has been 6 and I believe in some versions it is now 16.
HTH
Rick
04-26-2007 03:45 AM
Rick,
Thanks for pointing that out. Sorry, I overlooked the original post. Yes, it depends on the max-paths values to have the maximum routes for the same destination. As I know, max
paths in global ip routing table is 6 on most of the releases, however, its been made to 16 starting from 12.3 IOS train. So the original poster can have maximum 16 default routes.
-amit singh
04-26-2007 04:23 AM
thank you both. i found the answer of max 6 default routes myself, apparently it wasn't the last version.
good to know i can use 16.
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