OSPF hardware requirements.

in CCNA & CCENT
I keep reading in my ICND book. ospf takes higher cpu and ram than rip, igrp..
What are the requirments? i looked on the web, but couldnt find anything..
What are the requirments? i looked on the web, but couldnt find anything..
Xinxing is the hairy one.
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One more question.. Is there a way to completely reset a router, so it i can set it up differently if need be? For different configs.. RIP, OSPF.. bla bla..
erase nvram
or
erase startup-config
(and reload)
As you know you can easily maintain copies of certain configs/setups by copying it to tftp first.
As of yesterday i know..
To configure ospf all i need to add is
router ospf
network """" """" area "
Did that on my routers and it seems to work fine. At least when i do show ip ro.
Here's a list of OSPF related commands, most of them are not relevant for the CCNA exam, but almost all are part of the CCNP BSCI (routing) exam.