Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

OSPF and Summarization

I have looked on CCO and in various Cisco books and I can't find a straight answer to this question

Does an OSPF ABR summarize contiguous routes by default or is the "area range" command required

1 REPLY
VIP Purple

Re: OSPF and Summarization

Hello,

no, the ABR does not do any summarization by default. The only thing it does ´by default, at least post-IOS 12.1(6), is to add a route to Null0 for the area range summary route, in order to prevent routing loops...

HTH,

GP

110
Views
0
Helpful
1
Replies
CreatePlease to create content