Benchmarking Methodology for In-Service Software Upgrade (ISSU), October 2015
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Modern forwarding devices attempt to minimize any control- and data-plane disruptions while performing planned software changes by implementing a technique commonly known as In-Service Software Upgrade (ISSU). This document specifies a set of common methodologies and procedures designed to characterize the overall behavior of a Device Under Test (DUT), subject to an ISSU event.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.