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ASR Zones and BGP

We're designing a second datacenter and are looking at routers for both our MPLS network and our Internet edge. In our current datacenter we have 4x3945e routers, two on the MPLS networks and two on the Internet edge networks. Since we're going to have a 1GB link between the two datacenters, I started looking at the ASR platform for it's impressive throughput compared to the 3945e.

 

I noticed the Enterprise Applications feature supports zone-based policy firewall, which seems appealing. Given the raw power of the ASR and the ability to support zones, it seems one router could handle both the external Internet access and the MPLS traffic, each residing on it's own zone.

Considering the ASR 1001x, my two questions are

  1. Is my assumption correct or would the above be a security concern?
  2. Can each zone support a different BGP AS number?

 

Thank you,

 

Denny

 

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