OSPF Peer Limitation

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Jul 3rd, 2007
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I need that information if it is available:

How many OSPF peer does Cisco router support? For example; Cisco 7206VXR

router supports how many OSPF peer on its one of the ethernet or serial


Tansel Akyuz

Network Engineer


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mounir.mohamed Tue, 07/03/2007 - 23:22
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It's depending on allot of verities for example the OSPF router may have multiple point-to-point interfaces into different areas or the same area (As per Cisco recommendation the router should not belong to more than 3 different areas) I the same time the router may be elected as the DR on the Ethernet segment so finally it?s deepening on the router resources.

Best Regards,

Mounir Mohamed

royalblues Wed, 07/04/2007 - 01:21
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Welcome Mounir... good to see you back in the forum

Yes i agree with Mounir that it totally depeneds on the router resources.

These are however some Cisco OSPF design recommendations

routers per area - 50

neighbors per router - 3

areas per router - 3

Bit again this may differ according to your network topology and traffic patterns



inzeos781 Thu, 07/05/2007 - 05:25
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You could also consider forcing your down stream routers to only create two adjacencies with the DR and BDR to speed up convergence.


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