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Configure IP Networks for Real-Time Voice Traffic Configure RTP Header Compression 2-10 Real-Time Transport Protocol (RTP) is used for carrying packetized audio traffic over an IP network. RTP header compression compresses the IP/UDP/RTP header in an RTP data packet from 40 bytes to approximately 2 to 4 bytes (most of the time), as shown in Figure 2-1. This compression feature is beneficial if you are running Voice over IP over slow links. Enabling compression on both ends of a low-bandwidth serial link can greatly reduce the network overhead if there is a lot of RTP traffic on that slow link. Typically, an RTP packet has a payload of approximately 20 to 160 bytes for audio applications that use compressed payloads. RTP header compression is especially beneficial when the RTP payload size is small (for example, compressed audio payloads between 20 and 50 bytes). Figure 2-1 RTP Header Compression Before RTP header compression: 20 bytes 8 bytes 12 bytes IP Header UDP RTP Payload After RTP header compression: IP/UDP/RTP header 2 to 4 bytes 20 to 160 bytes Payload 20 to 160 bytes You should configure RTP header compression if the following conditions exist in your network: • Slow links • Need to save bandwidth Note RTP header compression should not be used on links greater than 2 Mbps. Perform the following tasks to configure RTP header compression for Voice over IP. The first task is required; the second task is optional. • Enable RTP Header Compression on a Serial Interface • Change the Number of Header Compression Connections Voice over IP for the Cisco 3600 Series Software Configuration Guide 12076
Enable RTP Header Compression on a Serial Interface To use RTP header compression, you need to enable compression on both ends of a serial connection. To enable RTP header compression, use the following command in interface configuration mode: Command Purpose ip rtp header-compression [passive] Enable RTP header compression. Configure Custom Queuing If you include the passive keyword, the software compresses outgoing RTP packets only if incoming RTP packets on the same interface are compressed. If you use the command without the passive keyword, the software compresses all RTP traffic. Change the Number of Header Compression Connections By default, the software supports a total of 16 RTP header compression connections on an interface. To specify a different number of RTP header compression connections, use the following command in interface configuration mode: Command Purpose ip rtp compression connections number Specify the total number of RTP header compression connections supported on an interface. RTP Header Compression Configuration Example The following example enables RTP header compression for a serial interface: interface 0 ip rtp header-compression encapsulation ppp ip rtp compression-connections 25 For more information about RTP header compression, see the “Configuring IP Multicast Routing” chapter of the Cisco IOS Release 11.3 Network Protocols Configuration Guide, Part 1. Configure Custom Queuing Some QoS features, such as IP RTP reserve and custom queuing, are based on the transport protocol and the associated port number. Real-time voice traffic is carried on UDP ports ranging from 16384 to 16624. This number is derived from the following formula: 16384 = 4(number of voice ports in the Cisco 3600 series router) Custom Queuing and other methods for identifying high priority streams should be configured for these port ranges. For more information about custom queuing, refer to the “Managing System Performance” chapter in the Cisco IOS Release 11.3 Configuration Fundamentals Configuration Guide. Configure Weighted Fair Queuing Weighted fair queuing ensures that queues do not starve for bandwidth and that traffic gets predictable service. Low-volume traffic streams receive preferential service; high-volume traffic streams share the remaining capacity, obtaining equal or proportional bandwidth. Configuring Voice over IP for the Cisco 3600 Series 2-11
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Instituto Tecnológico de Costa Ric
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AGRADECIMIENTO Agradezco a los Inge
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Abstract The main objective of this
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5.3 PROGRAMACIÓN DE LAS INTERFACES
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FIGURA 6.5 GRÁFICO QUE MUESTRA LA
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CAPÍTULO 1: INTRODUCCIÓN 11
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El proyecto de graduación se reali
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1.4 Objetivos Específicos 1. Reali
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CAPÍTULO 2: ANTECEDENTES 17
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La figura 2.1 muestra un diagrama d
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SWITCH 0 SWITCH 1 SWITCH 2 SWITCH 7
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2.3 Solución propuesta Se desea en
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SWITCH 0 SWITCH 1 SWITCH 2 SWITCH 7
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CAPÍTULO 3: PROCEDIMIENTO METODOL
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3.3 Escoger diferentes métodos par
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3.10 Distribución física Esta eta
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Como ya se ha mencionado anteriorme
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Del mismo modo, los router cuentan
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Figura 4.3 Módulo serial de un pue
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Figura 4.9 Tarjeta de Interfaz de v
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Packeteer (Intelligent Bandwidth Ma
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Sistema Global de Posicionamiento U
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Figura 4.13 Vista frontal del GPS M
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5.1 Configuración de voz sobre IP
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El valor interfaz se reemplaza con
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Figura 5.2 Segmentos de llamada vis
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eq-qos [ best-effort | controlled-l
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Los números de teléfono se pueden
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El siguiente paso consiste en progr
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Tabla 5.4 Descripción de los coman
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5.5 Configuración de los puertos d
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destino específico. “número1”
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5.6 Configuración del Puente Inal
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La figura 5.4 muestra una vista gen
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Diagnostics: permite realizar prueb
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Frequency: establece la frecuencia
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CAPÍTULO 6: ANÁLISIS Y RESULTADOS
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La figura 6.10 muestra un gráfico
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Figura 6.3 Eficiencia de la red de
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Figura 6.7 Gráfico que muestra la
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Figura 6.11 Gráfico que muestra la
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Unisys de Centroamérica desea tras
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6.2.3 Segmentos de Red También se
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hUNISYS : es la altura completa del
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Figura 6.15 Diagrama de la ubicaci
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La altura de 13.05 metros de la tor
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CAPÍTULO 7: CONCLUSIONES Y RECOMEN
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No se requiere que en Unisys de Cen
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ANEXOS 98
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ANEXOS 96
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Configuring Voice Ports This chapte
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Validation Tips Step Command Purpos
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Step Command Purpose Configuring E&
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Validation Tips Fine-Tuning E&M Voi
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Activating the Voice Port Step Comm
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• Activating the Voice Port Confi
Page 113 and 114: Fine-Tuning FXO and FXS Voice Ports
Page 115 and 116: Step Command Purpose Configuring E&
Page 117 and 118: Validation Tips Step Command Purpos
Page 119 and 120: Step Command Purpose Fine-Tuning E&
Page 121 and 122: Anexo 2: Configuración de VoIP en
Page 123 and 124: 2 Voice over IP Quick Start Guide
Page 125 and 126: Installing Voice Network Modules an
Page 127 and 128: Installing Voice Network Modules an
Page 129 and 130: Voice Port Numbering Voice Port Num
Page 131 and 132: Entering Configuration Mode Enterin
Page 133 and 134: Configuring the IP Network for Real
Page 135 and 136: Configuring the IP Network for Real
Page 137 and 138: Configuring FXS Interfaces Configur
Page 139 and 140: Configuring FXS Interfaces 18 Voice
Page 141 and 142: Configuring FXS Interfaces Wild Car
Page 143 and 144: Configuring FXS Interfaces 22 Voice
Page 145 and 146: Configuring FXO Interfaces Configur
Page 147 and 148: Configuring E&M Interfaces Configur
Page 149 and 150: Configuring E&M Interfaces 28 Voice
Page 151 and 152: List of Terms List of Terms This se
Page 153 and 154: Cisco Connection Online Cisco Conne
Page 155 and 156: CHAPTER Configuring Voice over IP f
Page 157 and 158: Prerequisites Tasks Prerequisites T
Page 159 and 160: Configuration Tasks To configure Vo
Page 161 and 162: Configure RSVP for Voice Enable RSV
Page 163: You should configure Multilink PPP
Page 167 and 168: Frame Relay for Voice over IP Confi
Page 169 and 170: Table 2-1 Sample Number Expansion T
Page 171 and 172: Figure 2-5 Outgoing Calls from the
Page 173 and 174: Configure POTS Peers To configure t
Page 175 and 176: Configure VoIP Peers Verify Tips Co
Page 177 and 178: • Call progress tone using the cp
Page 179 and 180: Fine-Tune FXO and FXS Voice Ports T
Page 181 and 182: Validation Tips Step Command Purpos
Page 183 and 184: Step Command Purpose Fine-Tune E&M
Page 185 and 186: Configure CODEC and VAD for Dial Pe
Page 187 and 188: Step 8 Click the Up button until th
Page 189 and 190: Limit TCP Transactions Limit TCP Tr
Page 191 and 192: Establish Queueing and Congestion S
Page 197 and 198: Modify the System Buffer Size To di
Page 199 and 200: Performance Management Examples The
Page 201 and 202: 4-2 • output attenuation • port
Page 203 and 204: Command Syntax Conventions Command
Page 205 and 206: acc-qos 4-6 Example The following e
Page 207 and 208: answer-address 4-8 Example The foll
Page 209 and 210: comfort-noise comfort-noise 4-10 To
Page 211 and 212: cptone cptone 4-12 To configure a v
Page 213 and 214: description description To include
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destination-pattern 4-16 Related Co
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dial-peer voice dial-peer voice 4-1
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echo-cancel coverage echo-cancel co
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echo-cancel enable echo-cancel enab
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fax-rate fax-rate 4-24 To establish
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icpif icpif 4-26 To specify the Cal
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input gain input gain To configure
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ip udp checksum ip udp checksum 4-3
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non-linear non-linear 4-32 To enabl
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operation operation To select a spe
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port port 4-36 To associate a dial
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eq-qos req-qos 4-38 To specify the
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ing number ring number To specify t
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session target session target 4-42
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show call active voice show call ac
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show call active voice 4-46 Table 4
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show call history voice show call h
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show call history voice 4-50 Table
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show dial-peer voice 4-52 The follo
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show dialplan incall number show di
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show num-exp show num-exp 4-56 To s
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show voice port 4-58 Voice card spe
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show voice port 4-60 Table 4-7 Show
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shutdown (voice-port configuration)
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signal 4-64 Note If you change the
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snmp-server enable traps snmp-serve
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snmp-server enable traps 4-68 The s
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timeouts initial timeouts initial 4
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timing clear-wait timing clear-wait
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timing delay-start timing delay-sta
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timing digit timing digit To specif
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timing pulse timing pulse To specif
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timing wink-duration timing wink-du
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type type 4-82 To specify the E&M i
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vad vad 4-84 To enable voice activi
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Anexo 4: Guía de antenas y accesor
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Table 26-15: Physical and Environme
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Software Ordering Information Softw
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Installation Notes Installation Not
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Anexo 5: Manual de usuario de los p
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THE SPECIFICATIONS AND INFORMATION
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Contents About the User’s Guide .
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Contents iii Setting the Forwarding
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Chapter 9 - Viewing Statistics Cont
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Appendix A -Aironet 340 Series Brid
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x Aironet 340 Series Bridge Chapter
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xii Aironet 340 Series Bridge Welco
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xiv Aironet 340 Series Bridge Radio
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xvi Aironet 340 Series Bridge Paren
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xviii Aironet 340 Series Bridge The
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Part 1 - Getting Started Part 1 - G
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1 - 2 Aironet 340 Series Bridge Bef
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1 - 4 Aironet 340 Series Bridge 2.
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1 - 6 Aironet 340 Series Bridge Ins
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1 - 8 Aironet 340 Series Bridge Att
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1 - 10 Aironet 340 Series Bridge Ty
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Chapter 2 - Accessing the Console S
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Sub-Menus Each menu contains the fo
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Accessing the Console System 2 - 5
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Web Access Accessing the Console Sy
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Accessing the Console System 2 - 9
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Using the Configuration Console Men
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Controlling SNMP access to the conf
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Setting the Communication Port Para
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Monitoring of the DTR Signal Access
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Chapter 3 - Before You Begin CHAPTE
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Before You Begin 3 - 3 Time: Used t
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Chapter 4 - Configuring the Radio N
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Using the Configuration Radio Menu
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Configuring the Radio Network 4 - 5
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Packet Encryption (Privacy Menu) Co
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Viewing Errors (Errors) Configuring
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Roaming Notification Mode (Roaming)
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Chapter 5 - Configuring the Etherne
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Configuring the Ethernet Port 5 - 3
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6 - 2 Aironet 340 Series Bridge Usi
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6 - 4 Aironet 340 Series Bridge 2.
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Chapter 7 - Configuring Mobile IP C
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Configuring Mobile IP 7 - 3 On a fo
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Configuring Mobile IP 7 - 5 work. T
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Chapter 8 - Using the Spanning Tree
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Understanding Loops Using the Spann
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Using the Spanning-Tree Protocol 8
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Establishing Timeouts Node Address
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Using the Configuration STP Menu (R
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Setting the Local Port Priority (Pr
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Viewing the Port State (State) Usin
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Chapter 9 - Viewing Statistics CHAP
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Throughput Statistics (Throughput)
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Error Statistics Viewing Statistics
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Displaying Overall Status (Status)
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Viewing Statistics 9 - 9 2. Type th
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Displaying Node Information (Node)
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Chapter 10 - Setting Up the Associa
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Using the Association Menu Setting
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Setting Up the Association Table 10
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Setting Up the Association Table 10
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Chapter 11 - Using Filters CHAPTER
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Using Filters 11 - 3 n Both: Packet
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Filtering Node Addresses (Node) Usi
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Displaying the IP to Network Addres
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Setting the Default Action (Default
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Í To Add a Filter Using the Monito
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If you type llc: a. When you select
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Using Filters 11 - 15 The contents
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Chapter 12 - Setting Up Event Logs
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Setting Up Event Logs 12 - 3 Node
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Error Logs Severe Error Logs “Cat
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Lost our association, new specified
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Setting Up Event Logs 12 - 9 NOTE:
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Setting Statistic Parameters (Stati
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The following trap messages will be
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Chapter 13 - Performing Diagnostics
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Performing Diagnostics 13 - 3 are d
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Physically Locating a Unit (Find) P
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Performing Diagnostics 13 - 7 4. Th
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Performing Diagnostics 13 - 9 5. Se
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Performing Diagnostics 13 - 11 4. I
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Performing Diagnostics 13 - 13 If t
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Appendix A - Aironet 340 Series Bri
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Console Port Pin-Out The Console Po
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B-2 Aironet 340 Series Bridge Conti
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B-4 Aironet 340 Series Bridge Broad
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B-6 Aironet 340 Series Bridge Desti
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C-2 Aironet 340 Series Bridge The I
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C-4 Aironet 340 Series Bridge The I
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C-6 Aironet 340 Series Bridge The U
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C-8 Aironet 340 Series Bridge The S
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C-10 Aironet 340 Series Bridge MIBI
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C-12 Aironet 340 Series Bridge The
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Appendix E - Regulatory Information
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Department of Communications—Cana
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E-5
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LATIN AMERICA AND CARIBBEAN GROUP G
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LATIN AMERICA AND CARIBBEAN GROUP C
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