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Cisco Systems, Inc.
All contents are Copyright © 1992–2003 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.
Page 1 of 8
Data Sheet
Cisco 12000 Series Internet Router
Three-Port Gigabit Ethernet Line Card
Providing Service Providers with Cisco 12000 Series High-Throughput and
Cost-Effective Connectivity
Cisco offers the three-port Gigabit Ethernet
line card (part number 3GE-GBIC-SC(=))
for the Cisco 12000 series family of
Internet routers to address the needs for
interconnecting devices within points of
presence (POPs) at gigabit rates. The
three-port Gigabit Ethernet line card is the
second Ethernet-based product for the
Cisco 12000 series family of Internet
routers, providing a cost-effective,
high-bandwidth solution. This compelling
solution is sought by Internet service
providers (ISPs) with large Web hosting
equipment such as servers, caches, edge
routers, Gigabit Ethernet switches, and so
on, who are looking for cost-effective links
between their Cisco 12000 series platforms
and other network equipment.
Thisnewlinecard,depictedinFigure1,can
be configured with up to three of the
following interface types: a 1000BASE-SX
multimode fiber interface with up to a
550-meter reach, a 1000BASE-LH
single-mode fiber interface with up to a
10-km reach, or a 1000BASE-ZX
single-mode fiber interface with up to a
70-km reach.
Feature Summary
Packet Layer
Layer 3 quality-of-service (QoS)
support, providing differentiated
services
Virtual output queues
Weighted Random Early Detection
(WRED) Modified Deficit Round
Robin (MDRR)
Application-specific integrated circuit
(ASIC)-based Layer 3 Forwarding and
queuing engine for Internet-scale
performance
Multiple virtual output queues
optimizing class of service (CoS) by
minimizing latency and eliminating
head-of-line blocking
A local forwarding table that can
accommodate up to one million
forwardingentries512-kB burst buffers
in Tx and Rx directions to smooth out
bursty traffic
256-MB default packet buffer memory
to maximize TCP goodput
Scalable up to 512 MB
Configurable with up to 256 MB of
code and route table memory
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Inhaltsverzeichnis

Seite 1 - Data Sheet

Cisco Systems, Inc.All contents are Copyright © 1992–2003 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.Page 1 of 8

Seite 2 - Page 2 of 8

Cisco Systems, Inc.All contents are Copyright © 1992–2003 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.Page 2 of 8

Seite 3 - Features and Benefits

Cisco Systems, Inc.All contents are Copyright © 1992–2003 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.Page 3 of 8

Seite 4 - Route Memory Options

Cisco Systems, Inc.All contents are Copyright © 1992–2003 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.Page 4 of 8

Seite 5 - Page 5 of 8

Cisco Systems, Inc.All contents are Copyright © 1992–2003 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.Page 5 of 8

Seite 6 - Page 6 of 8

Cisco Systems, Inc.All contents are Copyright © 1992–2003 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.Page 6 of 8

Seite 7 - Page 7 of 8

Cisco Systems, Inc.All contents are Copyright © 1992–2003 Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.Page 7 of 8

Seite 8 - (0303R) 203082/ETMG 06/03

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