Cisco WS C4224V 8FXS - 200Mbps Ethernet Switch User manual

Corporate Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: [phone]
800 553-NETS (6387)
Fax: [phone]
Catalyst 4224 Access Gateway
Switch Software Configuration
Guide
March 2003
Text Part Number: OL-2031-02

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT
NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT
ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR
THEIR APPLICATION OF ANY PRODUCTS.
THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION
PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO
LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as
part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.
NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE
PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED
OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE.
IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL
DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR
INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
Catalyst 4224 Access Gateway Switch Software Configuration Guide
Copyright © 2001-2003 Cisco Systems, Inc. All rights reserved.
CCIP, CCSP, the Cisco Arrow logo, the Cisco Powered Network mark, the Cisco Systems Verified logo, Cisco Unity, Follow Me Browsing, FormShare,
iQ Net Readiness Scorecard, Networking Academy, and ScriptShare are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and
Learn, The Fastest Way to Increase Your Internet Quotient, and iQuick Study are service marks of Cisco Systems, Inc.; and Aironet, ASIST, BPX,
Catalyst, CCDA, CCDP, CCIE, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco
Systems, Cisco Systems Capital, the Cisco Systems logo, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherSwitch, Fast Step,
GigaStack, Internet Quotient, IOS, IP/TV, iQ Expertise, the iQ logo, LightStream, MGX, MICA, the Networkers logo, Network Registrar, Packet, PIX,
Post-Routing, Pre-Routing, RateMUX, Registrar, SlideCast, SMARTnet, StrataView Plus, Stratm, SwitchProbe, TeleRouter, TransPath, and VCO are
registered trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries.
All other trademarks mentioned in this document or Web site are the property of their respective owners. The use of the word partner does not imply a
partnership relationship between Cisco and any other company. (0303R)

iii
Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
CONTENTS
Preface xvii
Objectives xvii
Audience xviii
Organization xviii
Related Documentation xix
Conventions xx
Obtaining Documentation xxi
Cisco.com xxi
Documentation CD-ROM xxi
Ordering Documentation xxii
Documentation Feedback xxii
Obtaining Technical Assistance xxiii
Cisco.com xxiii
Technical Assistance Center xxiii
Cisco TAC Website xxiv
Cisco TAC Escalation Center xxv
Obtaining Additional Publications and Information xxv
CHAPTER 1Product Overview 1-1
Features 1-2
Solution 1-3
IP Telephony 1-5
Ethernet Switching 1-5
Survivable Remote Site Telephony 1-6

Contents
iv
Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
VoIP Gateway 1-6
IP Routing and WAN Features 1-7
Quality of Service 1-9
VPN and Firewall Features 1-9
Application Notes 1-10
Architecture 1-10
DSP Allocation 1-11
InterVLAN Routing 1-14
Quality of Service 1-14
Layer 2 QoS 1-14
Separate Voice and Data VLANs 1-15
Single Voice and Data VLAN with dot1p 1-15
Layer 3 QoS 1-16
WAN QoS Queuing and Scheduling 1-16
Summary of the Layer 3 WAN QoS Features 1-16
Configuration Guidelines 1-18
Default Port Configuration 1-18
Separate VLAN for Voice and Data 1-19
Port Configuration for a Single Subnet 1-19
InterVLAN and WAN Routing Configuration 1-20
Centralized Cisco CallManager and DHCP Server 1-20
Voice Port Configuration 1-21
Interface Range Command Support 1-22
Switched Port Analyzer (SPAN) 1-22
Recommended Configurations 1-22
No VTP or DTP Support 1-23
Creating a VLAN 1-23
Defining a VLAN on a Trunk Port 1-23
Trunking 1-24
Fractional PRI Configuration 1-24

v
Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
Contents
No Ring Back Tone Generated 1-25
MTP Required on Cisco CallManager 1-26
H323-Gateway VOIP Bind SRCADDR Command 1-27
Port Fast Not Enabled on Trunk Ports 1-28
Priority Queuing on Frame Relay 1-28
Maximum Number of VLAN and Multicast Groups 1-29
IP Multicast Support 1-29
CHAPTER 2Configuring for the First Time 2-1
First-Time Configuration 2-1
Booting the Catalyst 4224 2-2
Downloading an Image to Boot Flash Memory 2-2
Connecting a Terminal 2-3
Connecting a Modem 2-3
Configuring the Management Port 2-3
Interface Numbering 2-4
Using the Cisco IOS CLI 2-5
Getting Help 2-6
Command Modes 2-6
Disabling a Command or Feature 2-8
Saving Configuration Changes 2-8
CHAPTER 3Configuring Ethernet Switching 3-1
Configuring the Catalyst 4224 for Cisco IP Telephony 3-1
Default Switch Configuration 3-2
Connecting IP Phones to Your Campus Network 3-2

Contents
vi
Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
Configuring Ethernet Ports to Support IP Phones and a Daisy-Chained
Workstation 3-3
Configuring Separate Voice and Data Subnets 3-4
Voice Traffic and VVID 3-5
Sample Configuration 1 3-6
Sample Configuration 2 3-6
Configuring a Single Subnet for Voice and Data 3-7
Sample Configuration 3-9
Configuring Ethernet Ports to Support IP Phones with Multiple Ports 3-9
IP Addressing 3-9
Sample Configuration 3-10
Managing the Catalyst 4224 Access Gateway Switch 3-10
Adding Trap Managers 3-11
Configuring IP Information 3-11
Assigning IP Information to the Switch—Overview 3-11
Assigning IP Information to the Switch—Procedure 3-12
Removing an IP Address 3-13
Specifying a Domain Name and Configuring the DNS 3-13
Configuring Voice Ports 3-14
Configuring a Port to Connect to a Cisco 7960 IP Phone 3-15
Disabling Inline Power on a Catalyst 4224 3-15
Enabling and Disabling Switch Port Analyzer 3-16
Enabling the Switch Port Analyzer 3-17
Disabling Switch Port Analyzer 3-17
Managing the ARP Table 3-17
Managing the MAC Address Tables 3-18
MAC Addresses and VLANs 3-19
Changing the Address Aging Time 3-19
Adding Secure Addresses 3-20
Adding and Removing Static Addresses 3-22

vii
Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
Contents
CHAPTER 4Configuring the Data Interfaces 4-1
Configuring the Host Name and Password 4-2
Configuring the Fast Ethernet Interface 4-4
Configuring Asynchronous/Synchronous Serial Interfaces 4-6
Configuring ISDN BRI Interfaces 4-9
Configuring T1 and E1 Interfaces 4-12
Configuring T1 Interfaces 4-12
Configuring E1 Interfaces 4-16
Checking the Interface Configuration 4-18
Saving Configuration Changes 4-19
CHAPTER 5Configuring the Voice Interfaces 5-1
Configuring Voice Interfaces 5-1
MGCP Configuration 5-3
Enabling MGCP 5-4
Enabling Switchover and Switchback 5-5
Configuring FXS and FXO Analog Ports 5-8
Configuring T1-CAS E&M Emulation 5-8
Configuring T1/E1 (ISDN-PRI) Ports 5-10
Configuring T1 Interfaces 5-10
Configuring E1 Interfaces 5-13
Where to Go Next 5-16
H.323 Gateway Configuration 5-16
Configuring T1-CAS Analog Emulation (H.323) 5-19
Managing Input Gain for Cisco IP Voice Applications 5-21
FXS Emulation Example 5-21
FXO Emulation Example 5-23
E&M Emulation Example 5-23

Contents
viii
Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
ISDN BRI Configuration (H.323) 5-24
Configuring ISDN BRI Lines 5-26
ISDN BRI Provisioning by Switch Type 5-26
Defining ISDN Service Profile Identifiers 5-29
BRI Direct-Inward Dialing Configuration 5-29
Gateway 1 Configuration 5-30
Gateway 2 Configuration 5-31
T1/E1 Configuration (H.323) 5-31
Configuring T1 Interfaces 5-31
T1/PRI Configuration Example 5-33
Configuring E1 Interfaces 5-33
E1/PRI Configuration Example 5-34
E&M Trunk Line Configuration (H.323) 5-35
Scenario 5-35
Handling Incoming Caller ID Digits on an E&M Port 5-36
Gateway San Jose Configuration 5-37
Gateway Salt Lake City Configuration 5-37
CHAPTER 6Configuring VoIP 6-1
Prerequisite Tasks 6-2
Configuration Tasks 6-3
Configure IP Networks for Real-Time Voice Traffic 6-3
Configure RSVP for Voice 6-5
Enable RSVP 6-5
RSVP Configuration Example 6-6
Configure Multilink Point-to-Point Protocol with Interleaving 6-7
Multilink PPP Configuration Example 6-9

ix
Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
Contents
Configure Real-Time Transport Protocol Header Compression 6-9
Enable RTP Header Compression on a Serial Interface 6-11
Change the Number of Header Compression Connections 6-11
RTP Header Compression Configuration Example 6-11
Configure Custom Queuing 6-11
Configure Weighted Fair Queuing 6-12
Configure Number Expansion 6-12
Create a Number Expansion Table 6-13
Configure Number Expansion 6-15
Configure Dial Peers 6-15
Inbound Versus Outbound Dial Peers 6-17
Create a Dial-Peer Configuration Table 6-19
Configure POTS Dial Peers 6-20
Outbound Dialing on POTS Dial Peers 6-20
Configure VoIP Dial Peers 6-21
Verifying Your Configuration 6-21
Troubleshooting Tips 6-22
Configure Voice Ports 6-22
Configure FXS or FXO Voice Ports 6-23
Verifying Your Configuration 6-24
Troubleshooting Tips 6-25
Fine-Tune FXS and FXO Voice Ports 6-25
Configure E&M Voice Ports 6-27
Verifying Your Configuration 6-29
Troubleshooting Tips 6-30
Fine-Tune E&M Voice Ports 6-30

Contents
x
Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
Additional VoIP Dial-Peer Configurations 6-33
Configure IP Precedence for Dial Peers 6-33
Configure RSVP for Dial Peers 6-34
Configure codec and VAD for Dial Peers 6-35
Configure codec for a VoIP Dial Peer 6-35
Configure VAD for a VoIP Dial Peer 6-36
Configure Frame Relay for VoIP 6-37
Frame Relay for VoIP Configuration Example 6-38
CHAPTER 7Configuring the Eight-Port FXS RJ-21 Module 7-1
Eight-Port RJ-21 FXS Module User Interface Conventions 7-2
Configuring FXS Voice Ports 7-2
Changing Default Configurations 7-2
Validating the Configuration 7-4
Troubleshooting the Configuration 7-5
Fine-Tuning FXS Voice Ports 7-6
Activating the Voice Port 7-8
Sample Configuration 7-8
Cisco 2600 Sample Configuration 7-10
FXS Module Sample Configuration 7-10
Displaying Cisco 2600 Configuration Values 7-11
Displaying FXS Module Configuration Values 7-12
CHAPTER 8Configuring Survivable Remote Site Telephony 8-1
Overview of Survivable Remote Site Telephony 8-2
Restrictions 8-2
Prerequisites 8-3
Supported Features 8-3
Fallback Behavior 8-4