Presentation 2000/7/12
Scalable multi QoS IP+ATM switch router architecture
Kohei Shiomoto, Masanori Uga, Masaaki Omotani, Shigeki Shimizu,
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Abstract(in English) This paper proposes a scalable multi-QoS IP+ATM switch router architecture. The proposed switch router is based on a core ATM switching system with multi-QoS capability. Forwarding engines (FEs) and routing engine (RE) are attached in front of the line cards of the ATM switching system. FEs and RE are inter-connected with each other via internal VCs. A novel longest matching algorithm is employed at the FE to achieve wire-speed packet forwarding for a long network address like IPv6. Wire-speed unicast and multicast packet forwarding are implemented by using point-to-point (p-p) and point-to-multipoint (p-mp) VCs in a unified way. Bacause FEs and RE are decoupled from the base ATM switching system, full spectrum of ATM QoS capability is nicely applied for IP QoS control with a packet classification at the edge of the network. The core switching fabric is scalable from 40 Gb/s to 160 Gb/s capacity (371 MPPS in terms of packet forwarding throughput). An feedback rate control is employed at each line card to eliminate congestion in the high-speed core switching fabric, in which only small amount of buffer is feasible.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) IP / ATM / multi-QoS / switch / router
Paper # SSE2000-87,RCS2000-76
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Conference Information
Committee RCS
Conference Date 2000/7/12(1days)
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Paper Information
Registration To Radio Communication Systems (RCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Scalable multi QoS IP+ATM switch router architecture
Sub Title (in English)
Keyword(1) IP
Keyword(2) ATM
Keyword(3) multi-QoS
Keyword(4) switch
Keyword(5) router
1st Author's Name Kohei Shiomoto
1st Author's Affiliation NTT Network Service Systems Laboratories()
2nd Author's Name Masanori Uga
2nd Author's Affiliation NTT Network Service Systems Laboratories
3rd Author's Name Masaaki Omotani
3rd Author's Affiliation NTT Network Service Systems Laboratories
4th Author's Name Shigeki Shimizu
4th Author's Affiliation NTT Network Service Systems Laboratories
Date 2000/7/12
Paper # SSE2000-87,RCS2000-76
Volume (vol) vol.100
Number (no) 195
Page pp.pp.-
#Pages 7
Date of Issue