... central scheduler : Scheduler bottlenecks in memory speed & power dissipation ... 3) Need for architecture that is scalable in terms of memory speed, power ...
Load balanced BV switch cannot guarantee any rate of service to any flow ... Impossible to guarantee any flow any bandwidth without running scheduling algorithm again ...
Instead, can we use an optical fabric at 100Tb/s with 100% throughput? ... Uses two switch fabrics. a Hard to package. Doesn't work with some linecards missing ...
Optical Switch Fabric. Low Packet-Processing Complexity. Scale to High Number of Linecards ... Crossbar Switch Fabric. External Outputs. Intermediate ...
... size arrays: 1,000x1,000 or 10,000x10,000 fabric per 'dimension' ... Can combine different fabrics together. Use advantages of each type to overcome constraints ...
Joint work with research groups of: David Miller, Mark Horowitz, Olav Solgaard. ... Sheer number. Optical WAN components. Per packet processing and buffering. ...
... only inside the fabric. Independent output schedulers. Drops ... Theorem: The throughput and waiting time of a CQ switch, B=1 is: Proof: Based on Z-transform ...
Clean Slate Design for the Internet. http://cleanslate.stanford.edu ... Backbone network design using VLB. What fraction of traffic matrices can they support? ...
1. Growth in Router Capacity. IPAM, Lake Arrowhead. October 2003. Nick McKeown ... power in chip-to-chip serial links. 14. What's hard, what's not. Linerate ...
Do Optics Belong in Internet Core Routers? Keynote, Opticomm 2001 Denver, Colorado Nick McKeown Professor of Electrical Engineering and Computer Science, Stanford ...
Set of packets with 'same' src and dest IP addresses. Packets that are 'close' together in time (a few seconds) ... Rule for acyclic subgraphs unicast packets: ...
Reducing Network Energy Consumption via ... Rates r1, ..., rn and pi pi 1. d : transition period (ms) ... pi 1. pi. d (1G) (100M) 22. Using performance states ...
Hyperchip is unique in building carrier class core routers with extreme ... 600 nominees finalists for its third annual Sloan eBusiness Awards (a.k.a. eBAs) ...
An Internet Router is well-defined, well-known and relevant. Optics and Routing Seminar ... data while the other is configured. A. B. Ingress. Linecard. Egress ...
Traffic grooming at various levels. Less aggregated throughput. More expensive ... No traffic grooming in sub-wavelength level. Higher aggregated throughput ...
IRU-based customer right to general use of telecommunication infrastructure with cost-based upgrade. Olaf.Schjelderup@uninett.no Workshop on CEF Networks, Praha, may 2005
... RRM WFA PP_VOQ Multicasting A 2.5Tb/s Router The place of Buffer in Crossbar Output Buffer Shared Buffer Input buffer Interconnects Two basic techniques ...
Data can be sent across fabric at arbitrary times. Shivkumar Kalyanaraman ... Banyan Switch Fabric (Contd) Basic building block = 2x2 switch, labelled by 0/1 ...
... For TCP to work well, the buffers need to hold one RTT (about ... High density means we can store data, but. Can't meet random access time. Nick McKeown ...
... depending on its destination Crossbar Simplest ... of switching elements Telephone ... 011 011 011 011 Shuffle Exchange This input when presented to ...
... for routing at a time while the others are being reconfigured ... time sensitive link: RX is reconfigured. Make use of 'decomposition' in the domains of ...
View network as collections of queues. FIFO data-structures ... Probability queue is at a certain length ... University of Saskatchewan. Introduction ...
Title: Router Design and Optics Author: Nick Feamster Last modified by: Fujitsu Created Date: 4/3/2006 11:50:40 AM Document presentation format: On-screen Show
Avnet Technology Solutions About the Global Organization Q4 FY08 TS Global: What We Do Avnet Technology Solutions markets and sells enterprise and embedded technology ...
Title: No Slide Title Author: nickm Last modified by: Nick McKeown Created Date: 2/12/1999 3:01:23 AM Document presentation format: On-screen Show Company
Faster interrupt handling. Fast context switches. Atomic read-modify-write instructions ... bit. PDC. System Peripherals. Interrupt Controller. PLL0. PLL1. POR ...
Instead, can we use an optical fabric at 100Tb/s with 100% ... Need to reconfigure switch too often. 100% throughput requires complex electronic scheduler. ...
Time from when a customer arrives until it has departed. Spring 2006 ... Let A(n), D(n) and Q(n) denote the arrivals, departures and queue size of some output queue. ...
Joint ITU/IEEE Workshop on Ethernet - Emerging Applications and Technologies (Geneva, Switzerland, 22 September2012) Power saving in (X)GPONs Frank Effenberger