Usage of set level command in the route-map

Hi All,

  I was exploring and understanding the options available with route-map
particulary in relation to redistribution.I am trying to understand the
usage of set level command as pasted below

R2(config-route-map)#set level ?
  *backbone Import into OSPF backbone area
* level-1 Import into a level-1 area
  level-1-2 Import into level-1 and level-2
  level-2 Import into level-2 sub-domain
  *stub-area Import into OSPF NSSA area*
**
I ignored the level-1,level-1-2 and level-2 assuming it is related to
redistribution into IS-IS as it is not in the Lab syllabus.But trying to
understand the other two options (backbone and stub-area),what it is
actually meant to do.I choosed a loopback and redistributed into OSPF by
setting the level as stub-area to understand what it actually means,I see as
usual in OSPF database as LSA type 5 .What actually it is meant to do
?....Kindly help me to understand

Thank you very much

Regards
Anantha Subramanian Natarajan

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Received on Sat Sep 05 2009 - 15:51:25 ART