Invention Grant
- Patent Title: Multi-protocol label switching in a network device
- Patent Title (中): 网络设备中的多协议标签交换
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Application No.: US12713570Application Date: 2010-02-26
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Publication No.: US07995586B2Publication Date: 2011-08-09
- Inventor: Dennis C. Ferguson , Der-Hwa Gan
- Applicant: Dennis C. Ferguson , Der-Hwa Gan
- Applicant Address: US CA Sunnyvale
- Assignee: Juniper Networks, Inc.
- Current Assignee: Juniper Networks, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Harrity & Harrity, LLP
- Main IPC: H04L12/28
- IPC: H04L12/28

Abstract:
A network device for processing data packets includes input logic, a register, route lookup logic and output processing logic. The input logic receives a data packet having at least one multi-protocol label switching (MPLS) tag, stores the packet and forwards a portion of the packet including the MPLS tag. The route lookup logic receives the portion of the packet, generates next hop information based on the MPLS tag and determines whether at least one MPLS tag is to be removed from the packet before the packet is to be output by the network device. The route lookup logic also modifies a start offset value in the register for each MPLS tag that is to be removed and forwards the start offset. The output processing logic receives the start offset and begins processing the data packet for output at a location identified by the start offset.
Public/Granted literature
- US20100150159A1 MULTI-PROTOCOL LABEL SWITCHING IN A NETWORK DEVICE Public/Granted day:2010-06-17
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