Configuring an E1/T1 Frame Relay (FR) Interface Between an Avaya X330W-2DS1 Access Router Module and a Cisco 3620 Router - Issue 1.

Transcription

1 Configuring an E1/T1 Frame Relay (FR) Interface Between an Avaya X330W-2DS1 Access Router Module and a Cisco 3620 Router - Issue 1.0 Abstract These Application Notes describe how to configure the Avaya X330 Access Router Module of an Avaya P333T Modular Stackable Switch with a Cisco 3620 Router via a T1 and an E1 Interface using the Frame Relay (FR) protocol. The X330W-2DS1 Access Router Module can operate in either T1 or E1 mode. The Module conforms to the T1 and E1 interface standards. 1 of 14

2 1. Introduction These Application Notes describe how to configure an Avaya P333T Modular Stackable switch equipped with an Avaya X330W-2DS1 Access Router Module and a Cisco 3620 Router via a T1 and E1 Interface using the Frame Relay (FR) protocol. The Avaya X330W-2DS1 Access Router Module conforms to T1 and E1 interface standards. The T1 standard is an American National Standards Institute (ANSI) standard that telephone companies use for data transmission over long distances at Mbps. The E1 standard is an International Telecommunication Union Telecom Standards Sector (ITU-T) standard that telephone companies use for data transmission over long distances at Mbps. Frame Relay operates at the physical and data link layers of the OSI reference model. Frame Relay is an example of a packet-switched technology. Devices attached to a Frame Relay WAN fall into the following two general categories: Data terminal equipment (DTE) - network terminating equipment located at customer premises. Data circuit-terminating equipment (DCE) - carrier-owned internetworking equipment providing clock and switching services in a network. Avaya s X330W-2DS1 Access Router Module is considered DTE. The X330W-2DS1 Module supports the Internet Engineering Task Force (IETF) form of Frame Relay encapsulation typically used to connect to third party vendor's equipment across a Frame Relay network. The Avaya X330W-2DS1 Access Router Module has one console port, two WAN E1/T1 interfaces, and one FastEthernet interface. The FastEthernet interface is an auto-sensing 10/100 Mbps Ethernet port that can be used to connect to a LAN or to a firewall/vpn. In addition, the X330W-2DS1 Module has an internal FabricFastEthernet interface used to connect to the hosting P330 switch fabric. The X330W-2DS1 Module FabricFastEthernet port supports up to 253 VLANs used to perform inter-vlan routing. Figure 1 illustrates a sample configuration between an Avaya P333T switch equipped with an Avaya X330W-2DS1 Access Router Module and a Cisco 3620 Router. Before configuring the X330 Module, establish the line coding, framing, and clock source. The example below uses the most common T1 and E1 settings. Extended Super Frame (ESF) framing and Binary 8-Zero Substitution (B8ZS) line coding was used for the T1 Interface configuration. D4 Super Frame (SF) and ESF are the available T1 frame formats. B8ZS and Alternate Mark Inversion (AMI) are the available T1 line encoding formats. For the E1 Interface configuration, Cyclic Redundancy Check 4 (CRC4) framing and High Density Bipolar 3 (HDB3) line coding were used. CRC4 and no CRC4 are the available E1 2 of 14

3 frame formats. HDB3 and Alternate Mark Inversion (AMI) are the available E1 line encoding formats. Both devices use their default map-class FR context/bandwidth and are connected together via a FR link with a Data Link Control Identifier (DLCI) of 20. The Cisco 3620 Router is configured as a DCE supplying clock to the X330W-2DS1 Module acting as a DTE. In actual scenarios, the clock signal is usually obtained from the network line side. PC 1 Avaya P333T Switch w/ X330W-2DS1 FabricFastEthernet 1: P1/1 Serial1:1.1 DLCI /24.2 DTE T1/E1 FR /24 serial1/0:1.2 DCE Cisco 3620 Router Ethernet0/ /24 PC 2 Figure 1: Avaya X330W-2DS1 Module and Cisco 3620 Router T1/E1 Network Configuration 2. Equipment and Software Validated The following software/firmware versions were used during the verification: 3 of 14

4 Equipment Version Avaya P333T Modular Stackable Switch Avaya X330W-2DS1 Access Router Module Cisco 3620 Router with a 2MFT-T1-DI VWIC Module 12.2(12) Microsoft Windows NT 4.0 Workstations Build 1381: SP5 3. Avaya P333T Switch/X330W-2DS1 Access Router Module Configuration The following configuration was done through the Avaya P333T switch command line interface (CLI) via a console cable. Step Description Avaya P333T Switch 1. Enter configuration mode: P333T(super)# configure P333T(configure)# 2. Assign port 1/1 to VLAN1: P333T(configure)# set port vlan 1 1/1 VLAN 1 modified. VLAN Mod/Ports /1 P333T(configure)# 3. Assign an IP address to the inband interface: P333T(configure)# set interface inband Management VLAN number set to 1 Interface inband IP address set. You must reset the device in order for the change to take effect. 4. Reset the Avaya P333T Switch: P333T(configure)# reset This command will force a switch-over to the master module and disconnect your telnet session *** Reset *** - do you want to continue (Y/N)? y 4 of 14

5 Step Description 5. Add a default gateway to the FabricFastEthernet Switch by typing: P333T(configure)# set ip route destination = gateway = ROUTE NET TABLE destination gateway flags Refcnt Use Interface se se se ROUTE HOST TABLE destination gateway flags Refcnt Use Interface lo P333T(configure)# 6. Access the X330W-2DS1 Access Router Module CLI: P333T(configure)# session wan The switch will now prompt to log into the X330W-2DS1 Module. The following message is displayed: Welcome to X330WAN-2DS1 SW version X330WAN-2DS1-1(super)# Avaya X330W-2DS1 Access Router Module Configuration 7. Set the controller mode: Use the command show controllers to show the controllers operating mode: X330WAN-2DS1-1 (super)# show controllers T1 1 is down. Transmitter is sending remote alarm. Receiver has loss of frame. Framing is SF, Line Code is AMI, Clock Source is Line. Data in current interval (389 seconds elapsed): Line Code Violations, 11 Path Code Violations 0 Slip Secs, 1 Fr Loss Secs, 331 Line Err Secs, 0 Degraded Mins 1 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 385 Unavail Secs T1 2 is down. Transmitter is sending remote alarm. Receiver has loss of signal. Framing is SF, Line Code is AMI, Clock Source is Line. Data in current interval (389 seconds elapsed): 8191 Line Code Violations, 0 Path Code Violations 0 Slip Secs, 0 Fr Loss Secs, 1 Line Err Secs, 0 Degraded Mins 0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, of 14

6 Step Description Unavail Secs X330WAN-2DS1-1 (super)# By default, the controller is set to operate in T1 mode. Issue the following command to set it to E1 mode: X330WAN-2DS1-1(super)# ds-mode e1 Your startup-config file will be erased! Your telnet session will be disconnected. This operation may take a few minutes. Please refrain from any other operation during this time. The X330W-2DS1 Module will reset, in order to make the required change. Do you want to continue (Y/N)? y X330WAN-2DS1-1(super)# P333T(configure)# Access the X330W-2DS1 Access Router Module CLI again by repeating instructions specified above for step 6. Verify the controllers are running in the correct mode by re-issuing the show controllers command. X330WAN-2DS1-1 (super)# show controllers E1 1 is down. Transmitter is sending remote alarm. Receiver has loss of frame. Framing is CRC4, Line Code is HDB3, Clock Source is Line. Data in current interval (389 seconds elapsed): Line Code Violations, 11 Path Code Violations 0 Slip Secs, 1 Fr Loss Secs, 331 Line Err Secs, 0 Degraded Mins 1 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 385 Unavail Secs E1 2 is down. Transmitter is sending remote alarm. Receiver has loss of signal. Framing is CRC4, Line Code is HDB3, Clock Source is Line. Data in current interval (389 seconds elapsed): 8191 Line Code Violations, 0 Path Code Violations 0 Slip Secs, 0 Fr Loss Secs, 1 Line Err Secs, 0 Degraded Mins 0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 389 Unavail Secs X330WAN-2DS1-1 (super)# Note: To set the controller to T1 mode, issue the following command ds-mode t1. 8. Go to configuration mode: X330WAN-2DS1-1(super)# config X330WAN-2DS1-1(configure)# 9. Set up the Controller physical parameters. The T1 and E1 configurations are both shown 6 of 14

7 Step Description below: The following commands show how to configure the T1 interface parameters: X330WAN-2DS1-1(configure)# controller T1 1 Set up the frame format and line encoding format for the T1 link. The T1 controller below is configured for Extended Super Frame (ESF) frame format and Binary 8-Zero Substitution (B8ZS) line coding. The ISP generally determines which framing type and line coding is required for a circuit. D4 Super Frame (SF) and ESF are the available T1 frame formats. B8ZS and Alternate Mark Inversion (AMI) are the available T1 line encoding formats. X330WAN-2DS1-1(configure-controller:1)# linecode b8zs X330WAN-2DS1-1(configure-controller:1)# framing esf Next, a valid clock source must be configured. The available clock choices are line and internal. The X330WAN-2DS1 Module is set to get clock from the line. X330WAN-2DS1-1(configure-controller:1)# clock source line A list of timeslots (DS0s) for voice channels must be configured for the T1 controller. This can be done using the command channel-group <channel-no> timeslots <timeslot-list> speed <56 64>. X330WAN-2DS1-1(configure-controller:1)# channel-group 1 timeslots 1-24 speed 64 X330WAN-2DS1-1(configure-controller:1)# no shutdown X330WAN-2DS1-1(configure-controller:1)# exit X330WAN-2DS1-1(configure)# The following commands show how to configure the E1 interface parameters: X330WAN-2DS1-1(configure)# controller E1 1 Set up the frame format and line encoding format for the E1 link. The E1 controller below is configured for Cyclic Redundancy Check 4 (CRC4) frame format and High Density Bipolar 3 (HDB3) line coding. The ISP generally determines which framing type and line coding is required for a circuit. CRC4 and no CRC4 are the available E1 frame formats. HDB3 and Alternate Mark Inversion (AMI) are the available E1 line encoding formats. X330WAN-2DS1-1(configure-controller:1)# linecode hdb3 X330WAN-2DS1-1(configure-controller:1)# framing crc4 Next, a valid clock source must be configured. The available clock choices are line and internal. The X330W-2DS1 Module is set to get clock from the line. X330WAN-2DS1-1(configure-controller:1)# clock source line 7 of 14

8 Step Description A list of timeslots (DS0s) for voice channels must be configured for the E1 controller. This can be done using the command channel-group <channel-no> timeslots <timeslot-list> speed <56 64>. X330WAN-2DS1-1(configure-controller:1)# channel-group 1 timeslots 1-31 speed 64 X330WAN-2DS1-1(configure-controller:1)# no shutdown X330WAN-2DS1-1(configure-controller:1)# exit X330WAN-2DS1-1(configure)# 10. Create a sub-interface for the FabricFastEthernet : X330WAN-2DS1-1(configure)# interface FabricFastEthernet 1:1 X330WAN-2DS1-1(configure-if:FabricFastEthernet1:1)# ip address X330WAN-2DS1-1(configure-if:FabricFastEthernet1:1)# exit X330WAN-2DS1-1(configure)# Note: FabricFastEthernet 1:1 refers to Ethernet port 1, VLAN Configure the FR protocol parameters on the serial interface connected to the Cisco 3620 Router: X330WAN-2DS1-1(configure)# interface serial1:1 X330WAN-2DS1-1(configure-if:serial1:1)# encapsulation frame-relay ietf X330WAN-2DS1-1(configure-if:serial1:1)# frame-relay lmi-type q933a X330WAN-2DS1-1(configure-if:serial1:1)# no shutdown X330WAN-2DS1-1(configure-if:serial1:1)# exit X330WAN-2DS1-1(configure)# Note: Serial 1:1 refers to controller T1/E1 1, channel group 1. The serial interface Local Management Interface (LMI) type is set to q933a. Although the default FR traffic shaping and bandwidth parameters are used, the frame-relay traffic-shaping command can be used to enable traffic shaping on the interface. The bandwidth <kilobits> command can be used to set the interface bandwidth. 8 of 14

9 12. Assign an IP address and a Data Link Connection Identifier (DLCI) to the serial sub-interface connected to the Cisco 3620 Router. X330WAN-2DS1-1(configure)# interface serial 1:1.1 point-to-point X330WAN-2DS1-1(configure-subif:Serial1:1.1)# ip address X330WAN-2DS1-1(configure-subif:Serial1:1.1)# frame-relay interfacedlci 20 X330WAN-2DS1-1(configure-subif:Serial1:1.1)# exit X330WAN-2DS1-1(configure)# Note: Serial 1:1.1 refers to controller T1/E1 1, channel group 1, IP sub-interface 1. The serial sub-interface virtual circuit (DLCI=20) uses the default map-class FR context. A new map-class FR context can be configured by entering the map-class frame-relay <map-classname> command at the X330W-2DS1 Module X330WAN-2DS1-1(configure)# CLI level. The commands bc out <bits>, be out <bits>, and cir out <bits> commands configure the committed burst size, excess burst size, and committed information rate respectively. The de-buffer-size <size> command sets the buffer size for frames marked as drop-eligible and the de pre-mark <thresh-percent> command sets the threshold for the pre-marking of non priority traffic. The fragment <size> command sets the fragment size to prevent long packets from causing delay to delay sensitive traffic. 13. Create the default gateway IP address for the Avaya X330W-2DS1 WAN Module. This default gateway should point to the Cisco 3620 Router serial interface. X330WAN-2DS1-1(configure)# ip default-gateway Copy the running configuration to the startup configuration: X330WAN-2DS1-1(configure)# copy running-config startup-config Beginning copy operation... This operation may take up to 20 seconds. Please refrain from any other operation during this time. For more information, use 'show copy status' command X330WAN-2DS1-1(configure)# 15. To exit from the X330W-2DS1 Module CLI and return to the P333T switch CLI, type: X330WAN-2DS1-1(configure)# exit X330WAN-2DS1-1# exit P333T(configure)# 9 of 14

10 4. Cisco 3620 Router Configuration The following configuration was done through the Cisco 3620 Router command line interface (CLI) via a console cable. Step Description 1. Enter router privileged mode by entering the privileged mode password: Cisco3620>enable Password: Cisco3620# 2. Enter router configuration mode: Cisco3620#configure terminal Enter configuration commands, one per line. Cisco3620(config)# End with CNTL/Z. 3. Configure the Cisco 3620 WAN physical line properties. The T1 and E1 configurations are both shown below: The following commands show how to configure the T1 interface parameters: Cisco3620(config)#controller T1 1/0 Cisco3620(config-controller)# Set up the frame format and line encoding format for the T1 link. The T1 controller below is configured for Extended Super Frame (ESF) frame format and Binary 8-Zero Substitution (B8ZS) line coding. Cisco3620(config-controller)#framing esf Cisco3620(config-controller)#linecode b8zs Cisco3620(config-controller)# Next, a valid clock source must be configured. The available clock choices are line, internal, and loop-timed. In this configuration, the Cisco 3620 Router is set to get clock internally. Cisco3620(config-controller)#clock source internal Cisco3620(config-controller)# A list of timeslots (DS0s) for voice channels must be configured for the T1 controller. This can be done using the command channel-group <channel-no> timeslots <timeslot-list> speed < >. Cisco3620(config-controller)#channel-group 1 timeslots 1-24 speed 64 Cisco3620(config-controller)#no shutdown Cisco3620(config-controller)#exit 10 of 14

11 Step Description Cisco3620(config)# The following commands show how to configure the E1 interface parameters: Cisco3620(config)#controller E1 1/0 Cisco3620(config-controller)# Set up the frame format and line encoding format for the E1 link. The E1 controller below is configured for Cyclic Redundancy Check 4 (CRC4) frame format and High Density Bipolar 3 (HDB3) line coding. Cisco3620(config-controller)#framing crc4 Cisco3620(config-controller)#linecode hdb3 Cisco3620(config-controller)# Next, a valid clock source must be configured. The available clock choices are line, internal, and loop-timed. In this configuration, the Cisco 3620 Router is set to get clock internally. Cisco3620(config-controller)#clock source internal Cisco3620(config-controller)# A list of timeslots (DS0s) for voice channels must be configured for the E1 controller. This can be done using the command channel-group <channel-no> timeslots <timeslot-list> speed <56 64>. Cisco3620(config-controller)#channel-group 1 timeslots 1-31 speed 64 Cisco3620(config-controller)#no shutdown Cisco3620(config-controller)#exit Cisco3620(config)# 4. Configuring the Ethernet interface: Cisco3620(config)# interface Ethernet0/0 Cisco3620(config-if)# ip address Cisco3620(config-if)# no shutdown Cisco3620(config-if)# exit Cisco3620(config)# 5. Enable Frame Relay Switching on the Cisco 3620 Router: Cisco3620(config)# frame-relay switching Cisco3620(config)# 11 of 14

12 Step Description 6. Configuring the serial interface connected to the Avaya X330 Access Router Module: Cisco3620(config)# interface serial 1/0:1 Cisco3620(config-if)# ip address Cisco3620(config-if)# encapsulation frame-relay ietf Cisco3620(config-if)# frame-relay interface-dlci 20 Cisco3620(config-if)# frame-relay lmi-type q933a Cisco3620(config-if)# frame-relay intf-type dce Cisco3620(config-if)# no shutdown Cisco3620(config-if)# exit Cisco3620(config)# Note: The serial interface Local Management Interface (LMI) type is set to q933a. Although the default FR traffic shaping and bandwidth parameters are used, the frame-relay trafficshaping command can be used to enable traffic shaping on the interface. The bandwidth <kilobits> command can be used to set the interface bandwidth. The serial sub-interface virtual circuit (DLCI=20) uses the default map-class FR context. A new map-class FR context can be configured by entering the map-class frame-relay <mapclass-name> command at the Cisco 3620 Router Cisco3620(config)# CLI level. The commands frame-relay bc out <bits>, frame-relay be out <bits>, and frame-relay cir out <bits> commands configure the committed burst size, excess burst size, and committed information rate respectively. The de-buffer-size <size> command sets the buffer size for frames marked as drop-eligible and the de pre-mark <thresh-percent> command sets the threshold for the pre-marking of non priority traffic. The frame-relay fragment <size> command sets the fragment size to prevent long packets from causing delay to delay sensitive traffic. 7. Create a static route for the network The forwarding router IP address should be pointed to the X330WAN Module serial IP address. Cisco3620(config)# ip route Copy the running configuration to the startup configuration. Cisco3620(config)# exit Cisco3620# write memory Building configuration... [OK] Cisco3620# 5. Validation This configuration was validated by verifying end-to-end connectivity between IP endpoints. Both PCs were able to ping each other successfully. In addition, the Smartbits test tool was used to verify the T1/E1 interface bandwidth between the Avaya X330W-2DS1 Access Router Module and the Cisco 3620 Router. 12 of 14

13 In the field, the following tests can be performed to verify the interfaces are operating correctly. The commands below are the same for the Avaya X330W-2DS1 Module and the Cisco 3620 Router. 1. Use the show ip interfaces command to display information on all Serial and Ethernet IP interfaces. The command also provides information on the state of the IP interfaces. 2. Use the show controllers command to monitor the state of T1/E1 ports. The resulting output reports alarms in addition to providing information about the state of the T1/E1 controllers. 3. Use the show interfaces command to show information on all interfaces: Fast Ethernet, Fabric, Serial, Console, and Loopback. Verify the output information is correct. 4. Use the ping <host> command to send ICMP echo request packets to a remote node on the network. Each node is pinged periodically and checked for an ICMP echo reply, thus checking end-to-end network connectivity. 5. The commands show frame-relay [fragment lmi map pvc pvc brief traffic] and show map-class frame-relay can be used to display the different frame relay parameter statistics. 6. Conclusion The Avaya X330W-2DS1 Access Router Module can be effectively used to connect business/branch office LANs to corporate WANs or ISPs with a Cisco 3620 Router. These Application Notes illustrate how to configure an Avaya P333T Switch equipped with an Avaya X330W-2DS1 Access Router Module with a Cisco 3620 Router via a T1 and an E1 FR interface. 13 of 14

14 Avaya and the Avaya Logo are trademarks of Avaya Inc. All trademarks identified by and 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 any questions or comments pertaining to these Application Notes along with the full title and filename, located in the lower right corner, directly to the Avaya Solution & Interoperability Test Lab at 14 of 14