| Segment | Possible Meaning | |---------|------------------| | dx80 | [e.g., Device model DX-80] | | ce820 | [e.g., Component ID CE820] | | syn213 | [Sync protocol v2.13 or synthetic data set 213] | | brel | Build release | | pkg | Package archive (e.g., .deb, .rpm, .zip) |

— I can attempt a structural breakdown:

this software. It is no longer publicly downloadable from the Cisco Software Download Alternative Method: If you cannot find this specific version, experts in the Cisco Community

→ So the full string might represent: DX80 series, component CE820, synthesizer firmware version 2.13, beta release, software package.