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Arista Warrior Gary A Donahue Arista Warrior by Gary A Donahue Copyright © 2013 Gary Donahue All rights reserved Printed in the United States of America Published by O’Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472 O’Reilly books may be purchased for educational, business, or sales promotional use Online editions are also available for most titles (http://my.safaribooksonline.com) For more information, contact our corporate/ institutional sales department: 800-998-9938 or corporate@oreilly.com Editors: Mike Loukides and Meghan Blanchette Production Editor: Kristen Borg Copyeditor: Absolute Services, Inc October 2012: Proofreader: Kiel Van Horn Indexer: Angela Howard Cover Designer: Karen Montgomery Interior Designer: David Futato Illustrator: Robert Romano First Edition Revision History for the First Edition: 2012-10-03 First release See http://oreilly.com/catalog/errata.csp?isbn=9781449314538 for release details Nutshell Handbook, the Nutshell Handbook logo, and the O’Reilly logo are registered trademarks of O’Reilly Media, Inc Arista Warrior, the image of an African Harrier-Hawk, and related trade dress are trademarks of O’Reilly Media, Inc Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks Where those designations appear in this book, and O’Reilly Media, Inc., was aware of a trade mark claim, the designations have been printed in caps or initial caps While every precaution has been taken in the preparation of this book, the publisher and authors assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein ISBN: 978-1-449-31453-8 [LSI] For my mother Joyce A Grier November 18, 1931 – July 20, 2012 http://www.gad.net/mother We all miss you vPC (Virtual Port Channel), 107 VRF (Virtual Routing and Forwarding), 386– 388 vrf definition command, 386 VRID (virtual router identifier), 156, 157 VRRP (Virtual Router Redundancy Protocol), 155–167 advertisement interval, 158–159 authentication for, 164 backup routers, 156, 160–162 configuration, 157–166 group number (VRID), 156, 157 groups, shutting down, 166 master router, 156, 160–162 preemption, 158–159, 162 priorities for groups, 161–162 serving multiple IP addresses, 163 tracing, 375 tracking other interfaces, 165–166 virtual IP (VIP), 156, 157, 163 virtual routers, 156 vrrp shut command, 166 VTY (virtual teletype terminal) interface, 186 W website resources Aboot commands, 224 Arista, 4, 43, 43, 378 Busybox, 225 400 | Index CloudVision, 342 EOS Central, 378 EOS extensions, 333 for this book, xv sFlowTrend, 258 SQlite, 318 wget command, Aboot, 225, 234–235 write erase command, 96 X XMPP (Extensible Messaging and Presence Pro tocol), 341, 344–345 xmpp send command, 362 XmppCli command, 362 Z Zero-Touch Provisioning (see ZTP) zerotouch cancel command, 301 zerotouch disable command, 302 zerotouch-config file, 230, 304 ZTP (Zero-Touch Provisioning), 9, 299–301 availability of, 299 booting with, 305–310 cancelling, 301–302 configuration, 305–307 disabling, 302–305 enabling after disabling, 304 About the Author Gary A Donahue is a working consultant who has been in the computer industry for 28 years Gary has worked as a programmer, mainframe administrator, Technical As sistance Center engineer, network administrator, network designer, and consultant Gary has worked as the Director of Network Infrastructure for a national consulting company and is the president of his own New Jersey consulting company: GAD Tech nologies Colophon The animal on the cover of Arista Warrior is the African Harrier-Hawk (Polyboroides typus) It lives in sub-Saharan Africa and sometimes moves seasonally to West Africa It prefers forest and woodland environments that have some water nearby, and tends to build its home out of sticks in a large gap in trees or in rocky crevices The African Harrier-Hawk is a medium-sized bird of prey that grows up to 65 cm in length and has a wingspan of 160 cm As a young bird, its body color is brown, but as they mature, they become light grey Other notable physical characteristics of this bird are that the tips of its wings are black with a white stripe in the middle and its belly has thin black and white stripes It’s an effective hunter not only because of its size, but also because of its double-jointed legs, which it uses to take hold of its prey and to climb It tends to eat small mammals, the eggs of small birds, chicks, reptiles, frogs, and some times oil palm fruit Typically a silent bird, an adult African Harrier-Hawk has a weak call It whistles sueeeee-ooo or suee-suee, and when near its nest it gives off a high-voiced wheep-wheepwheep The young in the nest, on the other hand, tend to give off a rapid ki-ki-ki-ki-ki sound The cover image is from Wood’s Animate Creation The cover font is Adobe ITC Gara mond The text font is Minion Pro by Robert Slimbach; the heading font is Myriad Pro by Robert Slimbach and Carol Twombly; and the code font is UbuntuMono by Dalton Maag