ࡱ> rtqa bjbj:K:K D`X!H\X!H\TW0,0,9999999989L@:9G::($;$;$;X<X<X<zG|G|G|G|G|G|G$J7M:G9X<X<X<X<X<G99$;$;4G @ @ @X<9$;9$;zG @X<zG @ @:~E,F$; ZF=E fGG0GERqN(>qNFF8qN9>F(X<X< @X<X<X<X<X<GGF?X<X<X<GX<X<X<X<qNX<X<X<X<X<X<X<X<X<0,> n8: Scaling Networks Companion Guide First Edition Copyright 2014 Cisco Systems, Inc. ISBN-10: 1-58713-328-8 ISBN-13: 978-1-58713-328-2 Warning and Disclaimer Every effort has been made to make this book as complete and as accurate as possible, but no warranty or fitness is implied. The information provided is on an "as is" basis. The author and the publisher shall have neither liability nor responsibility to any person or entity with respect to any loss or damages arising from the information contained in this book or from the use of the CD or programs accompanying it. When reviewing corrections, always check the print number of your book. Corrections are made to printed books with each subsequent printing. First Printing: April 2014 Corrections for June 7, 2016 PgError Second PrintingCorrection313Chapter 5, Question 12 Reads; 12. Fill in the blanks. What OSPF state is described by each of the following statements? A router enters the _____ state after it receives hello packets that contain the router ID of a neighboring device. Routers enter the _____ state after a DR and BDR are elected. Routers exchange DBD packets during the _____ state.Should read: 12. Fill in the blanks. What OSPF state is described by each of the following statements? A router enters the _____ state after it receives hello packets that contain the router ID of a neighboring device. Routers in the _____ state elect a DR and BDR. Routers exchange DBD packets during the _____ state. Corrections for February 3, 2016 PgError Second PrintingCorrection350Chapter 6, Paragraph under Example 6-18, Third Sentence Reads: Recall that R1 is in area 0, and that 2001:DB8: CAFE3::/64 subnet is connected to R3 in area 2.Should Read: Recall that R1 is in area 0, and that 2001:DB8: CAF:3::/64 subnet is connected to R3 in area 2. Corrections for June 12, 2015 PgError Second PrintingCorrection480Chapter 8, First Paragraph, Second Sentence Reads: In this Example, EIGRP is limited to no more than 40 percent of the links bandwidth.Should read: In this Example, EIGRP is limited to no more than 50 percent of the links bandwidth. Corrections for May 15, 2015 PgError Second PrintingCorrection188Chapter 4, Caption for Figure 4-38 Reads: Figure 4-38 AP Broadcasts Periodic Beacon FramesShould read: Figure 4-38 Client Broadcasts a Probe Request580Glossary, Add New Definition under T New definition to add: Technology package Previously referred to as features sets; the ISR G2 includes the following technology packages: IPBase (entry level IOS functionality), Data (Multiprotocol support), UC (VoIP, IP Telephony), and SEC (IOS Firewall, IPS, IPSec, VPN). Corrections for April 10, 2015 PgError Second PrintingCorrection96Chapter 2, Figure 2-6, Output Reads: S3 (config)# spanning-tree vlan 20 priority 4096 S3 (config)# spanning-tree vlan 20 priority 4096Should read: S3 (config)# spanning-tree vlan 20 priority 4096 S1 (config)# spanning-tree vlan 10 priority 4096369Chapter 7, Reply packets, First Bullet Reads: Sent with unreliable deliveryShould read: Sent with reliable delivery Corrections for October 31, 2014 PgError Second PrintingCorrection82Chapter 2, Table 2-4 Reads: Operation Allowed Forwarding Can receive and process BDUs noShould read: Operation Allowed Forwarding Can receive and process BDUs yes119Chapter 2, Question 12 Reads: 12. Indicate the STP protocol the matches the description.Should read: 12. Indicate the STP protocol that matches the description.150Chapter 4, First Note, Second Sentence Reads: Wireless communication occurs in the radio waves range (that is, 3 Hz to 300 GHz) of the electromagnetic spectrum, as shown in Figure 4-1.Should read: Wireless communication occurs in the radio waves range (that is, 3 kHz to 300 GHz) of the electromagnetic spectrum, as shown in Figure 4-1.169Chapter 4, First Paragraph Under Figure 4-16, Last Sentence Reads: Up to four antennas can be used to increase throughput.Should read: Up to eight antennas can be used to increase throughput.558Appendix A, Chapter 3, Answer 5 Reads: Correct answer: C. Explanation: The channel-group mode activecommand enables LACP unconditionally, and thechannel-group mode passive command enables LACP only if the port receives an LACP packet from another device. The channel-group mode desirable command enables PAgP unconditionally, and the channel-group mode autocommand enables PAgP only if the port receives a PAgP packet from another device.Should read: Correct answer: C. Explanation: The commandchannel-group mode activeconfigures LACP to initiate negotiations. Thecommand channel-group mode passiveconfigures LACP to respond to LACP packets from another device, but does not initiate LACP packet negotiation. The commandchannel-group mode desirable configures PAgP to initiate negotiations. The commandchannel-group mode autoconfigures PAgP to respond to PAgP packets from another device, but does not initiate PAgP packet negotiation. Corrections for July 17, 2014 PgErrorCorrection158Chapter 4, First Paragraph, First Sentence Reads: The wireless router connects to the ISP DLS modem and advertises its services by sending beacons containing its shared service set identifier (SSID).Should read: The wireless router connects to the ISP DSL modem and advertises its service by sending beacons containing its shared service set identifier (SSID). This errata sheet is intended to provide updated technical information. Spelling and grammar misprints are updated during the reprint process, but are not listed on this errata sheet.     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