but it is not clear whether multiple vrfs can share the same routing process through the routing context mechanism. If this is not supported yet, then I wonder how scalable this is, and in particular whether service providers will view this as a viable feature considering the demand on resources on a PE router to run multiple (according to the document, depending on platform, up to 10,000!) ospf processes?
Re: How many OSPF Processes does a Cat6500 w/ Sup720 support?
The documentation might be a bit confusing. The multiple VRF instances do not share the same OSPF process. A separate OSPF process is rather used for each VRF instance. The scalability of this is simply limited by the resources available on the PE. This feature just removes a hard limitation that was preventing providers to use OSPF altogether as a PE-CE routing protocol.
In my view, running BGP or static routes between the PE and the CE is the best way to scale.
Hope this helps,
Harold Ritter Sr. Technical Leader CCIE 4168 (R&S, SP) email@example.com México móvil: +52 1 55 8312 4915 Cisco México Paseo de la Reforma 222 Piso 19 Cuauhtémoc, Juárez Ciudad de México, 06600 México
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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