C2951-universalk9-mz.spa.157-3.m8.bin

: Short for "Software Platform Application," indicating the file is digitally signed by Cisco for authenticity and integrity. : The specific IOS version. This image is part of the release train, with being the eighth maintenance rebuild of that version. : The file extension for a binary executable image. Cisco Community Key Specifications Release Train

Fixed unexpected reloads (crashes) after specific configuration changes. SRTP Reset: C2951-universalk9-mz.spa.157-3.m8.bin