RFC 2844: OSPF over ATM and Proxy PAR
The RFC provides a great summary on its purpose: This memo specifies, for OSPF implementers and users, mechanisms describing how the protocol operates in ATM networks over PVC and SVC meshes with the presence of Proxy-PAR. These recommendations require no protocol changes and allow simpler, more efficient, and cost-effective network designs. It is recommended that OSPF implementations should be able to support logical interfaces, each consisting of one or more virtual circuits and used either as numbered logical point-to-point links (one VC), logical NBMA networks (more than one VC), or Point-to-MultiPoint networks (more than one VC), where a solution simulating broadcast interfaces is not appropriate.
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