Invalidation in a content delivery network (CDN)
US9749381B1 · kind B1 · utility
9Cited by
22References
1Claims
0Family size
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Key dates
| Filing date | Mar 1, 2017 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Mar 1, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/63
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A content delivery (CD) service in a CDN maintains property invalidation information on said CD service including, for each property, a list of one or more group invalidation commands. New group invalidation commands are added by selectively merging one or more invalidation commands to form a merged invalidation command and inserting the merged invalidation command into said list, wherein the merging is based on a length of common prefix of elements in said list. A per property common prefix list is maintained for invalidation commands in each property list.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.