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US 2007/0183425 A1Published application
Logical separation and accessing of descriptor memories
AssigneeJuniper Networks, Inc.
InventorsRaymond LIM, Jeffrey LIBBY
Life of this patent
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Abstract
A packet header processing engine includes a memory having a number of distinct portions for respectively storing different types of descriptor information for a header of a packet. A packet header processing unit includes a number of pointers corresponding to the number of distinct memory portions. The packet header processing unit is configured to retrieve the different types of descriptor information from the number of distinct memory portions and to generate header information from the different types of descriptor information.
Claims2
A packet header processing engine comprising:
- a template memory configured to store template data;
- a tag descriptor memory configured to store tag descriptor data;
- a level x (Lx) descriptor memory configured to store Lx descriptor data;
- and
- an Lx header execution unit connected to the template memory, the tag descriptor memory, and the Lx descriptor memory and configured to construct an Lx header from at least one of the template data, the tag descriptor data, and the Lx descriptor data.
2 more elements
2-27. (canceled)
Dependencies are inferred from the claim text.