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What ASN does CPS use ?

April 26, 2017ASN CPS

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What ASN does CPS use ?

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Internet2 CPS uses the same Autonomous System number as the Internet2 IP network (AS11537) even though it is a completely separate routing domain. Internet2 CPS is currently deployed as an MPLS Layer-3 VPN (aka VRF) on all of the Internet2 T640 routers. This provides complete separation of routing from the Internet2 IP network (formerly known as Abilene). MPLS Layer-3 VPNs were chosen because they are standards-based and well-proven as well as simple and easy to deploy. Using Juniper’s Logical Routers features for the routing separation would have allowed the use of a different ASN, but there are currently software limitations (specifically the lack of Netflow data when using LRs) that prevented the use of this feature. This choice will be evaluated again if/when Netflow is supported within Logical Routers.