Ordered switchover of cable modems
AssigneeJuniper Networks, Inc.
InventorNurettin Burcak Beser
Life of this patent
Estimating the term…
Abstract
A cable modem termination system (CMTS) provides for ordered switchover of the cable modems it serves when a primary module of the CMTS fails. When the primary module in the CMTS fails, a backup module takes over service of the cable modems. The backup module restores the service flows of the cable modems based on a restoration order determined by session recovery priorities that are related to quality of service levels required by the service flows. In particular, service flows that are engaged in VoIP “911” calls are restored first. Service flows engaged in other VoIP calls are next restored. Lastly, service flows engaged in regular data sessions are restored.
Claims2
A method comprising:
- communicating with a plurality of cable modems through a plurality of service flows initiated between the cable modems and a first module in a cable modem termination system (CMTS);
- detecting failure of the first module;
- and
- restoring the service flows between the cable modems and a second module in the CMTS based on a restoration order determined by session recovery priorities that are related to quality of service levels required by the service flows.
2-26. (canceled)
Dependencies are inferred from the claim text.