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Avaya Solution & Interoperability Test Lab

Configuring Avaya Communication Manager with Dell PowerConnect Switches - Issue 1.0

Abstract

These Application Notes describe the configuration steps to implement VoIP using Avaya Communication Manager 2.0 with Dell PowerConnect switches. These notes also discuss the Dell PowerConnect 5224 and 3324 switches' VLAN and Quality of Service (QoS) configurations. Avaya S8500 Media Server and Avaya CMC1 Media Gateway are used in the Application Notes. The configuration can be used for other Avaya Media Servers (S8700, S8300) and Avaya Media Gateways (G600, G650, G350, G700, MCC1, and SCC1).

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1. Introduction

Avaya Communication Manager 2.0 and Avaya S8500 Media Server have added new features and capabilities to the Avaya VoIP product portfolio. These Application Notes focus on the configurations of Avaya S8500 Media Server controlling Avaya CMC1 Media Gateway as well as the configurations of Dell PowerConnect 5224 and 3324 Ethernet switches. The PowerConnect 2124 switch does not require any configuration. The configurations of VLAN, 802.1Q tagging and Layer 2/3 QoS will be described in detail. The network topology below is used for the verification. The configuration described in the Application Notes can be used for other Avaya Media Servers (S8700, S8300) and Avaya Media Gateways (G600, G650, G350, G700, MCC1, and SCC1).

Dell PowerConnect 5224 Switch PC 1 Avaya 4620 IP Telephone 1 Dell PowerConnect 3324 Switch Avaya S8500 Media Server 100 MB Link Gigabit Link

Avaya 4612 IP Telephone 3

PC 3 Dell PowerConnect 2124 Switch

IPSI-2 PC 2 C-LAN MedPro Avaya 4620 IP Telephone 2

Avaya CMC1 Media Gateway

Avaya 6408 Digital Telephone

Figure 1: Avaya S8500 Media Server with CMC1 Media Gateways in Dell Switched Network Infrastructure

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Table 1 shows the VLAN and IP network assignment. Data VLAN 1 172.16.254.0 / 24 172.16.254.4 Voice VLAN 10 211.1.1.0 / 24 211.1.1.1

VLAN IP Network Gateway

Table 1: VLAN and IP network assignment Table 2 lists the equipment and software used for the verification. Equipment Avaya S8500 Media Server AvayaTM CMC1 Media Gateway with · IPSI-2 · C-LAN · MEDPRO Avaya 4620 IP Telephone Avaya 4612 IP Telephone Avaya IP Softphone Dell PowerConnect 5224 Ethernet Switch Dell PowerConnect 3324 Ethernet Switch Dell PowerConnect 2124 Ethernet Switch Software R012x.00.0.218.0 HW36 FW052 HW01 FW009 HW03 FW055 R1.81 R1.81 V5.0.1.2 V.2.0.0.27 V.1.0.0.52 N/A

Table 2: Hardware and Software Used for Verification

2. Configure the Avaya S8500 Media Server

The Avaya S8500 Media Server is configured using a web interface. To access the web interface, connect a computer to the service port (Ethernet port 1) on the S8500 Media Server. The service port uses the pre-configured IP address 192.11.13.6 with mask 255.255.255.252. The computer's network interface must be configured with the IP address 192.11.13.5 with mask 255.255.255.252. Use a crossover cable to connect the computer's Ethernet interface to the service port. Launch a web browser, turn proxies off, and connect to the URL http://192.11.13.6. Login to the server with appropriate login ID and password. After login, click Configure Server from the left hand side of the main menu. Enter all information as displayed in Figure 2.

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Figure 2: Avaya S8500 Media Server Configuration

Figure 2(continued): Avaya S8500 Media Server Configuration

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Note that Ethernet 0 is the network control interface, and the server IP address 211.1.1.21 will be bound to it. Checking the box Enable VLAN 802.1q priority tagging will force the server to tag the packets with an 802.1p value with VLAN ID 0. The steps to configure the 802.1p value are presented in Figure 4.

3. Configure Avaya Communication Manager

This section presents the relevant configuration of the Avaya Communication Manager. Avaya Site Administration is used for this configuration.

3.1. Add CMC1 Media Gateway

Use the command "add cabinet" to add the CMC1 Media Gateway. After the cabinet has been added, use the command "change cabinet" to view the cabinet configuration. Figure 3 displays the information configured for this cabinet. Note that the cmc-carrier-stack is used for this Cabinet Layout.

Figure 3: CMC1 Cabinet Configuration

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3.2. Configure IP Server Interface (IPSI-2)

The CMC1 Media Gateway uses a new type of IP Server Interface (IPSI-2) to communicate with the S8500 Media Server. To migrate the CMC1 to an IP connected gateway controlled by S8500 Media Server, remove the processor circuit pack (ether a TN795 or TN2314) from the "A" cabinet (J58890T) and insert an IPSI-2 (TN2312BP) into slot A02. Figure 4 displays how Avaya Communication Manager will interact with the IPSI-2.

Figure 4: Avaya Communication Manager Configuration of IPSI-2 Note that the QoS Parameters in Figure 4 only apply to the traffic originated from the S8500 Media Server. VLAN and QoS tagging for the IPSI-2 are configured via the IPSI-2 service port. The IPSI-2 service port has the pre-configured IP address 192.11.13.6 with mask 255.255.255.252. Configure a computer's IP address to 192.11.13.5/255.255.255.252 and connect its Ethernet interface to the service port with a crossover Ethernet cable. Telnet to the IP address 192.11.13.6 and type "ipsilogin" at the IPSI prompt. Log in to the IPSI-2 with the default login and password. Figure 5 shows how to assign IP address/gateway and configure QoS and VLAN Tagging for the network control port.

TN2312 IPSI IP Admin Utility Copyright Avaya Inc, 2003, All Rights Reserved [IPSI]: ipsilogin Login: craft Password: [IPADMIN]: set control interface 211.1.1.9 255.255.255.0 [IPADMIN]: set control gateway 211.1.1.1 [IPADMIN]: set diffserv 46 [IPADMIN]: set user priority 6 [IPADMIN]: set VLAN tagging on [IPADMIN]: reset

Figure 5: IPSI-2 IP Address, Gateway, QoS and VLAN Tagging Configuration

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After issuing the configuration commands, reset the IPSI-2 and log in again to verify that the settings are in effect. Figure 6 shows the current QoS settings as well as the new settings after the reset. Please note that the VLAN ID is set to 0 by default and cannot be changed. The top part of Figure 6 shows the current QoS settings on the IPSI-2, and the bottom part indicates that the new settings will take effect after resetting the IPSI-2.

[IPADMIN]: show qos QoS values currently in use: VLAN tagging : on VLAN id : 0 VLAN user priority : 6 Diffserv value : 46 QoS values to be used after next reset: VLAN tagging : on VLAN id : 0 VLAN user priority : 6 Diffserv value : 46

Figure 6: Display IPSI-2 Configuration (second login sequence not shown)

3.3. Configure C-LAN and MEDPRO

Use the command change node-name ip to create node names and assign their IP addresses. Figure 7 illustrates the mapping of node names to IP addresses.

Figure 7: Add Node Names and Assign IP Addresses

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Figures 8 and 9 illustrate the subnet-mask, gateway, network region, and VLAN configurations for C-LAN and MEDPRO on the CMC1 Media Gateway.

Figure 8: C-LAN Configuration

Figure 9: MEDPRO Configuration

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Figure 10 illustrates the data module administration necessary to enable the C-LAN board. Each C-LAN needs a data module to associate with it.

Figure 10: Data-Module for C-LAN Configuration The command change ethernet-options is used to change the Ethernet properties of C-LAN and MEDPRO. Figure 11 shows that both interfaces have been configured as 100Mbs with Full duplex, since auto-negotiation will result in a value of 100Mbs with half duplex.

Figure 11: Ethernet Options for C-LAN and MEDPRO Configurations

3.4. Define IP Codec Set, IP Network Region and IP Network Map

IP Network Regions 1 and Codec G.711MU are used for this verification. The IP Codec Set and IP Network Region configurations are presented here as shown in Figure 12 and Figure 13.

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Figure 12: IP Codec Set 1 Configuration Both Layer 2 (802.1p) and Layer 3 (DSCP) QoS values can be defined by using change-ipnetwork-region form as shown in Figure 13. These QoS values will be assigned to IP telephones, C-LAN and MEDPRO.

Figure 13: IP Network Region 1 Configuration Note that the Call Control 802.1p Priority value is set to 6 so that signaling can get the same priority as media. These setting ensure that signaling and media traffic gets through if network congestion occurs.

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Use the command change ip-network-map to configure the IP telephones to their network region based on their IP addresses. VLAN must be configured in order for IP telephones to receive 802.1p/Q priority values from their network region as shown in Figure 14.

Figure 14: IP Address Mapping Configuration

4. Configure Dell PowerConnect 5224 and 3324 Ethernet Switches

The Dell PowerConnect 5224 and 3324 switches are Layer 2 Ethernet switches. Both switches have 100MB and Gigabit switch ports. They both support VLAN, Spanning-Tree, 802.1Q tagging, Layer 2 (802.1p) and Layer 3 (DSCP and IP Precedence) QoS and link aggregation. Since VLAN 0 is not a configurable VLAN, the switches will retag all packets from the S8500 Media Server and the IPSI-2 with VLAN ID 10 (port native VLAN) and forward them to the egress ports via switches' port native VLAN 10. No configuration is required for the Dell PowerConnect 2124 since it is a non-manageable switch. The following two sections describe the detailed command line configurations for Dell PowerConnect 5224 and 3324 switches.

4.1. Configure Dell PowerConnect 5224 Switch

4.1.1. Configure console access

The console access configurations apply to both the Dell 5224 and 3224 switches. Use the Dell console cable shipped with the switch to connect the switch's serial port to a PC or Laptop's serial port. Launch HyperTerminal and configure the terminal settings as follows: Bit per second: 9600 Data bit: 8 Stop bit: 1 Parity: None Flow control: Hardware

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Log into the switch using the default user name and password.

4.1.2. Configure Management Interface

The switch has VLAN 1 defined as its default VLAN. Use default VLAN 1 as a management VLAN and assign an IP address to VLAN 1 interface. Console(config)#interface VLAN 1 Console(config-if)#ip address 172.16.254.220 255.255.255.0 Console(config-if)#exit Console(config)#ip default-gateway 172.16.254.4

4.1.3. Configure VLAN

By default, all switch ports use VLAN 1 as their native VLAN. In these Application Notes, VLAN 10 is created to carry all VoIP traffic. The following commands are used to add a new VLAN (VLAN10) on the switch. Console(config)#vlan database Console(config-VLAN)# vlan 10 name vlan10 media ethernet Console(config-VLAN)#exit

4.1.4. Configure Switch Port Properties, Spanning-Tree and VLAN Tagging

All switch ports on the Dell-5224 switch are 10/100/1000MB capable ports and can be configured with either half or full duplex. Spanning-tree is globally enabled on the switch by default, and can be enabled or disabled on any switch port as needed. All switch ports can be configured to receive/transmit packets with the following options: Ingress ­ Accept all frames or accept tagged frame only (Accept all frames is default) Egress ­ Send frames tagged (All packets transmitted by the port will be tagged, that is, carry a tag and, therefore, carry VLAN or CoS information.) or send frames untagged (All packets transmitted by the port will be untagged, that is, not carry a tag and, therefore, not carry VLAN or CoS information.) Send frame untagged is the default value.

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Console(config)#interface ethernet 1/1 Console(config)#description To S8500 Media Server Console(config)#spanning-tree portfast Console(config-if)#speed-duplex 1000full (S8500 Server has a 10/100/1000 Mbs NIC) Console(config-if)#switchport native VLAN 10 Console(config-if)#switchport allowed VLAN add 1,10 untagged

Console(config)#interface ethernet 1/3 Console(config)#description To IP Telephone 1 Console(config)#spanning-tree portfast Console(config-if)# speed-duplex 100full Console(config-if)#switchport allowed VLAN add 1 untagged (Untag data VLAN 1) Console(config-if)#switchport native VLAN 1 Console(config-if)#switchport allowed VLAN add 10 tagged (Tag voice VLAN 10)

Console(config)#interface ethernet 1/21 Console(config)#description Gigabit link to Dell-3324 Switch Console(config-if)#switchport allowed VLAN add 1 untagged Console(config-if)#switchport native VLAN 1 Console(config-if)#switchport acceptable-frame-types all Console(config-if)#switchport allowed VLAN add 10 tagged

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4.1.5. Configure QoS

Each switch port on the Dell 5224 switch has four transmit queues to assign traffic with different priorities based on the incoming packets' CoS (802.1p) or DSCP value. Each transmit queue is assigned bandwidth based on its weight. The default CoS (802.1p) to Queue mapping and weight assignments are displayed as follow.

Queue ID -------0 1 2 3 Class of service -----------------1 2 0 3 4 5 6 7 Weight -------16 64 128 240

Based on the QoS configurations from the ip-network-region form in Section 3.4, all VoIP traffic is tagged with CoS 6. These packets are sent to the switch port queue 3 and get the highest priority. These queue to CoS mapping and queue weight assignments can be changed according to users' needs. No configuration is needed to use these default QoS settings. After all configurations, use the command copy running-configure startup-configure to save configuration to flash device.

4.2. Configure Dell PowerConnect 3324 Switch

Table 4 shows the Dell 3324 switch port assignment. Switch port 1/e1 1/e3 1/e5 1/e7 1/e9 1/e11 1/g1 Connected device C-LAN IPSI-2 MEDPRO IP Telephone 2 Dell 2124 switch IP Softphone 1 Dell 5224 switch

Table 4. Dell PowerConnect 3324 Switch Port Assignment

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4.2.1. Configure Management Interface

Use default VLAN 1 as a management interface and assign IP address to it. Console(config)#interface vlan 1 Console(config-if)#ip address 172.16.254.221 255.255.255.0 Console(config-if)#exit

4.2.2. Configure VLAN

The switch has VLAN 1 defined as its default VLAN. The following commands are used to add new VLANs (VLAN10) on the switch. By default, all switch ports are using VLAN 1 as their native VLAN. In these Application Notes, VLAN 10 is created to carry VoIP traffic.

Console(config)#gvrp enable Console(config)#vlan database Console(config-VLAN)#vlan 10 Console(config-VLAN)#exit

4.2.3. Configure Switch Port Properties, Spanning-Tree and VLAN Tagging

The Dell 3324 switch has 24 10/100 MB BaseT ports and four Gigabit Ethernet ports ­ two RJ45 and two Fiber. All ports can be configured with either half or full duplex. Spanning-tree is globally enabled on switch by default and can be enabled or disabled on any switch port as needed. All switch ports can be configured to receive/transmit packets with the following options: Ingress ­ Accept all frames or accept tagged frame only (Accept all frames is default) Egress ­ Send frames tagged (All packets transmitted by the port will be tagged, that is, carry a tag and, therefore, carry VLAN or CoS information.) or send frames untagged (All packets transmitted by the port will be untagged, that is, not carry a tag and therefore not carry VLAN or CoS information. The default setting for Egress is send frames untagged.)

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Console(config)#interface Ethernet 1/e1 Console(config-if)#description To C-Lan Console(config-if)#spanning-tree disable Console(config-if)#speed 100 Console(config-if)#duplex full

(Set switch port to 100/full since the C-LAN has been configured as 100/full)

Console(config-if)#switchport mode trunk Console(config-if)# switchport trunk native VLAN 10

Console(config)#interface ethernet 1/e3 Console(config-if)#description To IPSI-2 Console(config-if)#spanning-tree disable Console(config-if)#switchport mode trunk Console(config-if)# switchport trunk native VLAN 10

Console(config)#interface ethernet 1/e5 Console(config-if)#description To MedPro Console(config-if)#spanning-tree disable Console(config-if)#speed 100 Console(config-if)#duplex full Console(config-if)#switchport mode trunk Console(config-if)# switchport trunk native VLAN 10

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Console(config)#interface ethernet 1/e7 Console(config-if)#description To IP Telephone 2 Console(config-if)#spanning-tree disable Console(config-if)#switchport mode trunk Console(config-if)#switchport trunk allow VLAN add 10

Console(config)#interface ethernet 1/e9 Console(config-if)#description To Dell PowerConnect Switch 2124 Console(config-if)#speed 100 Console(config-if)#duplex full Console(config-if)#switchport mode trunk Console(config-if)#switchport mode trunk allow VLAN add 10

Console(config)#interface ethernet 1/g1 Console(config-if)#description Gigabit port to Dell 5224 switch Console(config-if)#speed 1000 Console(config-if)#duplex full Console(config-if)#switchport mode trunk Console(config-if)# switchport trunk allow VLAN add 10

4.2.4. Configure QoS

The Dell 3324 switch has 4 queues (1-4) to schedule traffic based on packets' priority values. The higher number queue will get the higher priority. By default, all queues are set for strict priority queue scheme, which means that the traffic scheduling is based strictly on the queue priority.

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QoS needs to be globally enabled on switch to provide QoS service. Each switch port can be configured with one of the three-trust mode: · · · Trust CoS (802.1p) Trust DSCP Trust TCP/UDP port

By default, all switch ports have a default CoS value 0 and in trust mode. To prioritize untagged traffic, the port default priority value can be set to a desired value. In these Application Notes, these switch ports are configured in trust CoS mode. Use the following commands to enable QoS on switch and send traffic with CoS 6 to queue 4. Console(config)# qos trust cos Console(config)# wrr-queue cos-map 4 6 (map cos 6 to queue 4) Console(config)# interface ethernet 1/e1 Console(config-if)# qos trust

Console(config)#interface ethernet 1/e3 Console(config-if)#qos trust

Console(config)# interface ethernet 1/e5 Console(config-if)# qos trust Console(config)# interface ethernet 1/e7 Console(config-if)# qos trust

Console(config)# interface ethernet 1/e9 Console(config-if)#qos trust

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Console(config)# interface ethernet 1/g1 Console(config-if)#qos trust Console(config-if)#exit Console(config)#copy running-config startup-config (save configuration to flash)

5. Verification Steps

The following steps have been used to verify the configurations. · · · · · Make a phone call from IP phone 1 to IP phone 2, and verify the voice quality is good and the G.711MU Codec is used. Make a phone call from IP phone 1 to IP phone 3, and verify the voice quality is good and the G.711MU Codec is used. Make a phone call from IP phone 1 to Digital phone, and verify the voice quality is good and the G.711MU Codec is used. Generate data traffic at line speed between Gigabit port 2 on the switch 5224 and Gigabit port 2 on switch 3324. Make a phone call between IP phone 1 and Digital phone. Verify the call quality is good and that QoS is working. Use the show qos interface command to see the qos setting on interface Gigabit port 1. Console# show qos interface Ethernet 1/g1 Ethernet 1/g1 Default CoS: 0 Trust mode: enable ·

Use the show qos interface command to see the qos setting on interface 1/e7 for IP phone 2. Console# show qos interface Ethernet 1/e7 Ethernet 1/e7 Default CoS: 0 Trust mode: enable

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6. Conclusion

As demonstrated in these Application Notes, the Dell PowerConnect 5224 and 3324 switches can provide QoS for VoIP. Avaya Communication Manager, Avaya S8500 Media Server and Avaya CMC1 Media Gateway have been verified to work with Dell PowerConnect 5224, 3324 and 2124 switches. The configuration can be used for other Avaya Media Servers (S8700, S8300) and Avaya Media Gateways (G600, G650, G350, G700, MCC1, and SCC1).

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Avaya Inc. All Rights Reserved. Avaya and the Avaya Logo are trademarks of Avaya Inc. All trademarks identified by ® and TM are registered trademarks or trademarks, respectively, of Avaya Inc. All other trademarks are the property of their respective owners. The information provided in these Application Notes is subject to change without notice. The configurations, technical data, and recommendations provided in these Application Notes are believed to be accurate and dependable, but are presented without express or implied warranty. Users are responsible for their application of any products specified in these Application Notes. Please e-mail any questions or comments pertaining to these Application Notes along with the full title name and filename, located in the lower right corner, directly to the Avaya Solution & Interoperability Test Lab at [email protected]

©2004

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