A NETWORK PROCESSORBASED, CONTENTAWARE SWITCH

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A NETWORK PROCESSOR-BASED, CONTENT-AWARE SWITCH

• Li Zhao, Yan Luo,
• Laxmi N. Bhuyan, and Ravi Iyer
• IEEE Micro MAY-JUNE 2006

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Outline

• Introduction
• IXP2400
• Design and Implementation
• Performance Evaluation
• Conclusion

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Introduction Web Switch
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TCP Splicing (1)
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TCP Splicing (2)
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ENP-2611 (IXP2400)

• One XScale
• Eight multi-thread MEs
• Off-chip SRAM and DRAM
• Limit instruction space with each ME
• Hardware supported instruction to move packet
  between MSF and DRAM

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Design and Implementation (1)
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Design and Implementation (2)
SYN (Insert an entry into C-List)
SYN/ACK
ACK
Request
SYN (Send Pkt with Clients SA SP) (Lookup URL
Table to determine DA DP Output Port) (Insert
S-list)
SYN/ACK
ACK (Using S-list)
Request (Splicing!) (Delete S-list)
Response (Lookup C-list to find Output Port)
(Change SA with Switch Address)
Response
Client
Client_ME
Server_ME
Server
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Performance Evaluation (1)
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Performance Evaluation (2)
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Performance Evaluation (3)
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Performance Evaluation (4)
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Conclusion