Breaking Up the Transport Logjam

Download Now Free registration required

Executive Summary

Current Internet transports conflate transport semantics with endpoint addressing and flow regulation, creating roadblocks to Internet evolution that the authors propose to address with a new layering model. Factoring endpoint addressing (port numbers) into a separate Endpoint Layer permits incremental rollout of new or improved transports at OS or application level, enables transport-oblivious firewall/NAT traversal, improves transport negotiation efficiency, and simplifies endpoint address space administration. Factoring congestion control into a separate Flow Layer cleanly enables in-path performance optimizations such as on satellite or wireless links, permits incremental rollout of new congestion control schemes within administrative domains, frees congestion control evolution from the yoke of "TCP-friendliness," and facilitates multihoming and multipath communication.

  • Format: PDF
  • Size: 485.1 KB