tailieunhanh - Packet communicating in an IP World 30

Tech Tips Top His List The First Quarter 2004 issue of Packet® was excellent with its coverage of security, IOS®, high availability, etc. I read with particular interest of the AutoSecure feature in Cisco IOS Software Release Mainline. But all the information is very helpful to us because we’re installing a Cisco infrastructure at our facilities. I am familiar with Hot Standby Router Protocol (HSRP) and Virtual Router Redundancy Protocol (VRRP) but was not familiar with Gateway Load Balancing Protocol (GLBP) until now. The article on GLBP written by Rick Williams, “High Availability for Campus Networks,” is especially useful to me. I probably will be able to use GLBP for my dual-connected remote sites to do load sharing. I also liked. | PACKET CISCO SYSTEMS USERS MAGAZINE Power over Ethernet Branch of the Future SECOND QUARTER 2004 Cisco Systems I packet Reprinted with permission from Packet magazine Volume 16 No. 2 copyright 2004 by Cisco Systems Inc. All rights reserved. Communicating in an IP World 30 in an IP World How Technology Is Transforming Business 19 65 80 57 Service-Driven Metro Networks Business Ready Data Center Av ti WOï Packet magazine David Ball EDITOR-IN-CHIEF Jere King PUBLISHER Jennifer Redovian MANAGING EDITOR Susan Borton SENIOR EDITOR Joanie Wexler CONTRIBUTING EDITOR . Smith Sunset Custom Publishing PRODUCTION MANAGER Michelle Gervais Nicole Mazzei Mark Ryan Norma Tennis Sunset Custom Publishing PRODUCTION Jeff Brand ART DIRECTOR Emily Burch DESIGNER Ellen Sokoloff DIAGRAM ILLUSTRATOR Bill Littell PRINT PRODUCTION MANAGER Cecelia Glover Taylor CIRCULATION DIRECTOR Spencer Toy COVER PHOTOGRAPH SPECIAL THANKS TO THE FOLLOWING CONTRIBUTORS STEVE ANDERSON GrEG BEACH Karen Dalal Grace Hu-Morley Janice King Brian McDonald Marcus Phipps Karyn Scott Bill Stephens Laura Stiff ADVERTISING INFORMATION Kristen Bergman 408-525-2542 kbergman@ View Packet magazine at packet. PUBLISHER INFORMATION Packet magazine ISSN 1535-2439 is published quarterly by Cisco Systems and distributed free of charge to users of Cisco products. Application to mail at Periodicals Rates pending at San Jose California and additional mailing offices. POSTMASTER Please send direct address corrections and other correspondence to packet@ or to Packet in care of Packet Magazine PO Box 2080 Skokie Illinois 60076-9324 USA Phone 847-647-2293 Aironet Catalyst CCDA CCDP CCIE CCNA CCNP Cisco Cisco IOS Cisco Networking Academy Cisco Press the Cisco Powered Network logo the Cisco Systems logo Cisco Unity IOS IP TV iQ Packet PIX SMARTnet and StackWise are registered trademarks or trademarks of Cisco Systems Inc. and or its affiliates in the USA and certain other countries. All