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Gigabit Switch IC

8 Port Gigabit Ethernet Switch (w/ 32GE expansion feature)
Technology Territory Broadband
Technology Brief 8-port GE Switch is a Single Chip for Layer 2 Switch. To be implemented in Enterprise Backbone to solve the networking bottleneck. Besides, it could be used in the design of back-plan.
Application Enterprise Backbone Switch & Back-plane
Specification
  • 8-Port Single Chip Gigabit Ether Switch IC (Full-duplex GE only)
  • 128KB embedded packet memory (SSRAM)
    • buffer page size :128B (can fill up 1024 64-byte packets or 84 1522-byte packets)
  • Embedded address table size : 4K entries with 2-way hashing
    • Two selectable indexing options (1.hash, 2.linear mapping)
  • Support 2 priority queues per port based on 802.1p tag or port-pair based priority(with WRR based scheduling algorithms
  • Flexible flow control mechanism (can pause a specific port)
  • Support Port-trunking with max. 4 trunk groups (2 or 4 ports/group)
  • Wire-speed packet forwarding and learning and without HOL blocking
  • Port Controller supports re-transmission for 10/100 Ethernet MAC
Selling Points
  • Single Chip solution
  • Embedded packet memory and address table
  • Special and efficient packet memory management
  • Small die size (app. 160K gates)
  • Has a special 32 port non-blocking GE Switch Expansion mode
  • Low cost
  • 32 port non-blocking GE Switch Expansion mode
  • Special and efficient packet memory management
  • 32 port non-blocking GE Switch Expansion mo
Suggested Licensee

Experience on Ethernet Switch Design

Reference None
Name: Sandra Chiu
Communication & Visual Technology Marketing Department
Tel: +886-3-5917628
Fax: +886-3-5820240
E-mail: SandraChiu@itri.org.tw