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Webcast-Catalyst9k
Cisco Employee

NBAR vs Medianet Metadata

Hi all, comparing NBAR to Medianet Metadata, is it fair to say that Medianet only distiguishes between RTP traffic types while NBAR covers a wider range of applications including HTTP-based applications?

Please also confirm that Medianet Metadata mandates that all switches along the path of traffic must support Medianet Metadata.

Thanks,

Ahmed.

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1 REPLY
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Re: NBAR vs Medianet Metadata

Hi Ahmed,

Flow Metadata is not only limited to RTP sessions. For example, the Webex client version FR26 supports metadata flow using MSI (medianet services interfaces).  Flow metadata in this use case is announcing attributes to the network  describing the characteristics of the encrypted webex flow.

Note that the actual webex session remains encrypted. Flow metadata is only being used to announce the session to the network.

In response to your second question, not all network devices along a media path must support Flow metadata.  Non-medianet enable devices will transparently forward and ignore  metadata signaling message like normal IP traffic.

regards,

Eric

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