Why the inconsistent support for multicast with VRF-lite?
I have implemented several virtual networks using VRF-lite across 6500s, 4500s, 3750s, 3560s, 3550s, and now ME 3400Gs. All of these platforms support IP multicasting within VRFs except the 4500 Sup V and Sup IV. The Sup 6-E supports it. This seems like a very arbitrary decision. Does anyone understand the rationale for this?
Re: Why the inconsistent support for multicast with VRF-lite?
I would be surprised if it is hardware related. My guess is the 4500 BU does not want to incur the cost of porting the latest IOS version to the Sup V. Maybe they already know the EOL date for the Sup V.
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