brief bcm56821 ? 12 x 10-gbe + 8 x hg[16] + 4 x 1-gbe multilayer ethernet switch multiport multilayer ethernet switching ? provides 12 10-gigabit ethernet (10-gbe) ports + 8 hg[16] ports + four 1-gbe ports; each of the hg/10-gbe ports can also support 1 gbe, 2.5 gbe, or 10 gbe, as well as higig?/higig2? protocols. ? line rate full-duplex switching for 252+ gbps. ? built-in layer 2 (l2), vlan, and layer 3 (l3) tables with 10 quality of service (qos) queues per port. ? multistage ingress and egress contentaware? e ngine for deep packet inspection and classification provides flexible ingress and egress access control lists (acl), ipv4/v6 flow, proprietary headers, and multi-tuple lookups, all at line rate. ? ipv4 and ipv6 virtual routing with full support for l2/l3 tunnels (generic routing encapsulation [gre], ipv4 over ipv6, ipv6 over ipv4, queue in queue [qinq], 802.1ah) ? intelligent scheduler supports st rict priority (sp), weighted round robin (wrr), and deficit round robin (drr) with built- in weighted random early discard (wred) and explicit congestion notification (ecn) for congestion avoidance. ? ieee 802.3? link pause and serv ice aware fl ow control? (safc) mechanism allows in-b and backpressure per class of service (cos). ? full support for tricolor marking and metering with policing on ingress and egress separately (rfc-2698 and mef). ? high level of integration and low power consumption enable high-performance, high-port density 10-gbe in the same form factor as 1-gbe solutions. ? intelligent traffic management with safc supports storage, hpc, video, voice, and data over unified 10-gbe fabric enabling convergence in the data center. ? low power, superior enterprise class features, and industry-leading 10-gbe port density empower next-generation enterprise aggregation and data center applications. ? advanced load balancing, fast hardware failover and recovery (< 10 s), and ultralow latency (< 1 s) provide high performance, scalable, and reliable solutions for high performance computing (hpc) environments. ? robust integrated serdes, on-chip packet buffer memory, and plls accelerate system design and drastically reduce cost and conserve board space. ? sixth-generation higig/higig2 stacking technology facilitates full-speed upgrade while maintaining compatibility with existing deployed switches. ? fully compatible broadcom software api and software development kit (sdk) enable software reuse from existing deployed systems and faster time-to-market. features summary of benefits scheduling 12 x 10-gbe + 4 x 1-gbe macs with integrated serdes advanced buffer mmu flow control pcie ? /pci l2/vlan tables l3 tables with vrf security higig 8 x hg[16] multistage classifier higig higig higig higig higig higig higig
overview ? phone: 949-450-8700 fax: 949-926-5203 e-mail: info@broadcom.com web: www.broadcom.com broadcom corporation 16215 alton parkway, p.o. box 57013 irvine, california 92619-7013 ? 2007 by broadcom corporation. all rights reserved. 56821-pb00-r 03/23/07 broadcom ? , the pulse logo, connecting everything ? , contentaware?, service aware flow control?, higig?, and higig2? are trademarks of br oadcom corporation and/or its subsidiaries in the united states and certain other countries. all ot her trademarks mentioned are the property of their respective owners. for further information, contact your local distributor or broadcom sales representative. b c m56821 bcm56821 bcm56820 bcm56820 b cm5682 1 bcm56821 bcm56821 bcm56821 bcm56820 24 x 10-gbe + 4 x 1-gbe s witch fabric c ard b s witch fabric c ard b line card 1 of n enterprise/data center modular applications 8 x hg[16] backplane 24 x 10-gbe line rate 24 x 10-gbe + 4 x 1-gbe fixes/stackable enterprise/data center fixed/stackable applications line rate 48 x 10-gbe + 16 x 1-gbe fixed/stackable 4 x hg[16 ] per link access, atca, and embedded applications 48 x 10-gbe + 16 x 1-gbe m x 10-gbe + 4 x 1-gbe m x 10-gbe + 4 x 1-gbe switch fabric card a switch fabric card b backplane 10-gbe or higig gpon mac gpon phy/serdes xdsl mac xdsl phys n m u lt ico r e processor traffic manager network processor wireless phys gpon line card xdsl line card compute blade 3g wireless base station line card n x line cards bcm56720 bcm56720 bcm56720 bcm56580 bcm56514 bcm57710 bcm56720
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