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Cisco MWR 1941-DC User Manual
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Cisco MWR 1941-DC User Manual

Cisco MWR 1941-DC User Manual

Cisco ios ip-ran feature set
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Cisco MWR 1941-DC Router with the
Cisco IOS IP-RAN Feature Set
FThe functionality of the MWR 1941-DC router is dependent on the Cisco IOS image running on it. This
document describes configuring the MWR 1941-DC router with the Cisco IOS IP-RAN feature set
(software image).
For additional configuration topics, refer to the Cisco IOS configuration guide and command reference
publications. These publications are available on the Documentation CD-ROM that came with your
router, on the World Wide Web from Cisco's home page, or you can order printed copies separately.
This document contains the following sections:
Feature Overview, page 2
•
Configuring Tasks, page 8
•
Monitoring and Maintaining the MWR 1941-DC Router, page 37
•
Enabling Remote Management of the MWR 1941-DC Router, page 38
•
•
Related Documentation, page 39
Americas Headquarters:
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
© <year> Cisco Systems, Inc. All rights reserved.

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Summary of Contents for Cisco MWR 1941-DC

  • Page 1 Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set FThe functionality of the MWR 1941-DC router is dependent on the Cisco IOS image running on it. This document describes configuring the MWR 1941-DC router with the Cisco IOS IP-RAN feature set (software image).

  • Page 2: Feature Overview

    MWR 1900 IP BTS router pair In the IP-RAN, the BTS site consists of a pair of MWR 1941-DC routers. The pair of MWR 1941-DC routers provides for an active and standby router for redundancy. A failure of the active MWR 1941-DC router causes the standby router to take over as the active router for the BTS site.
  • Page 3 This allows the MWR 1941-DC router to support the traffic of up to 4 T1s or E1s (up to 60,000 packets per second) at a targeted 80% processor utilization while performing UDP/RTP header compression/decompression (cUDP/cRTP) and PPPmux.
  • Page 4 Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Feature Overview cRTP/cUDP • Link Noise Monitoring (LNM) provides configuration monitoring of individual T1/E1 circuit • quality PPP Multiplexing/Demultiplexing Encapsulated PPP frames contain several bytes of header information, which adds overhead to a network that is used to transport PPP frames.

  • Page 5: Supported Mibs

    T1/E1 link is not redundant and default to open. The relays are controlled by HSRP/redundancy protocol between the two routers connected to the same T1/E1. If you choose to use the MWR 1941-DC router in a non-redundant configuration, you must close the Note relays on the card using the standalone subcommand.
  • Page 6 Cisco MIB website on Cisco.com at the following URL: http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml The MWR 1914-DC router uses the same software base as the Cisco 10000. As such, it shares the same Note QoS MIB limitations of the Cisco 10000. For information about the Cisco10000 MIB support, see the Cisco 10000 Series ESR MIB Specifications Guide on CCO at http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/10kmibs/specgdll/index.htm.

  • Page 7: Limitations And Restrictions

    The Cisco MWR 1941-DC router requires a special version of Cisco IOS software. Not all Cisco IOS software features can be used with the Cisco MWR 1941-DC router as the core routing is handled by the network processor. A list of supported features is included in the “Software Features with the Cisco IOS...

  • Page 8: Table Of Contents

    Configuring Tasks MLP LFI Support MLP LFI is not supported by the Cisco MWR 1941-DC router. Therefore, MLP LFI must be disabled on peer devices connecting to the Cisco MWR 1941-DC router T1 MLP connections. ACFC and PFC Support on PPP Interfaces If upgrading to Cisco IOS Release 12.2(8)MC2c or later for the ACFC and PFC support on PPP...

  • Page 9: Slot And Port Numbering

    Verifying the Version of Cisco IOS Software To implement the MWR 1941-DC router in an IP-RAN, Cisco IOS Release 12.2(8)MC2 or a later must be installed on the router. To verify the version of Cisco IOS software, use the show version command.

  • Page 10: Configuring The Host Name And Password

    One of the first configuration tasks you might want to do is configure the host name and set an encrypted password. Configuring a host name allows you to distinguish multiple Cisco routers from each other. Setting an encrypted password allows you to prevent unauthorized configuration changes.

  • Page 11: Configuring Loopback Interfaces

    IP processing on the interface. In the case where the MWR 1941-DC is used in a redundant configuration, you must also configure loopback interfaces for the health and revertive interfaces. The health interface monitors the status of the redundant configuration so that the standby router can take over if there is a problem with the active router.

  • Page 12: Configuring Fast Ethernet Interfaces

    Step 3 Exits interface configuration mode. Router(config-if)# exit Configuring Fast Ethernet Interfaces To configure the FE interface of the MWR 1941-DC, complete the following tasks: Configuring the FE Interface IP Address • Setting the Speed and Duplex Mode •...
  • Page 13 Setting the Speed and Duplex Mode The Fast Ethernet ports of the MWR 1941-DC can run in full or half duplex mode and at 100 Mbps or 10 Mbps. The MWR 1941-DC also has an auto-negotiation feature that allows the router to negotiate the speed and duplex mode with the corresponding interface on the other end of the connection.
  • Page 14 IP address of the virtual router. Priority is determined first by the configured priority value, and then by the IP address. In each case a higher value is of greater priority. If you do not plan to use the MWR 1941-DC in a redundant configuration, do not configure HSRP Note...
  • Page 15 Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Configuring Tasks To configure HRSP, use the following commands while in interface configuration mode: Command Purpose Step 1 Specifies the name of the standby group. Router(config-if)# standby group name group-name Note The standby group names must be “one”...
  • Page 16 Router(config-if)# standby group priority 100 We recommend that you specify a priority Note of 100. If you are using the MWR 1941-DC in a redundant configuration, you must also set the keepalives under Note the FE interface to 1. Router(config-if)# keepalive 1 Enabling the FE Interface Once you have configured the FE interface, you can enable it.

  • Page 17: Configuring Multilink Interfaces

    The MWR 1941-DC router can support up to 16 T1 interfaces through the multilink interface. To set up the multilink interface, use the following commands, beginning in global configuration mode:...

  • Page 18: Configuring Ip Address Assignment

    Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Configuring Tasks Configuring IP Address Assignment A point-to-point interface must be able to provide a remote node with its IP address through the IP Control Protocol (IPCP) address negotiation process. The IP address can be obtained from a variety of sources.
  • Page 19 Configuring Tasks Configuring ACFC and PFC Handling During PPP Negotiation With Cisco IOS Release 12.2(15)MC1 and later, ACFC and PFC handling during PPP negotiation can be configured. By default, ACFC/PFC handling is not enabled. To configure ACFC handling during PPP negotiation, use the following commands while in multilink...
  • Page 20 Before you can enable RTP header compression, you must configure a serial line that uses PPP Note encapsulation. To configure RTP header compression when using Cisco IOS Release 12.2(15)MC2a or prior, use the following commands while in multilink interface configuration mode: Command...
  • Page 21 Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Configuring Tasks To configure RTP header compression when using Cisco IOS Release 12.3(11)T or later, use the following commands while in multilink interface configuration mode: Command Purpose Step 1...
  • Page 22 Configuring PIM Because the MWR 1941-DC is used in a multicast PPP environment, you should configure the PIM mode of the multilink interface. To configure the PIM mode, use the following command while in interface configuration mode:...

  • Page 23: Configuring T1 And E1 Interfaces

    Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Configuring Tasks Configuring T1 and E1 Interfaces To configure a T1/E1 multiflex trunk interface, enter the following Cisco IOS commands at the router prompt. Note Before you begin, disconnect all WAN cables from the router to keep it from trying to run the AutoInstall process.

  • Page 24: Configuring E1 Interfaces

    Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Configuring Tasks Command Purpose Step 8 Assigns an IP address and subnet mask to the Router(config-if)# ip address ip-address subnet-mask interface. If the interface is a member of a Multilink bundle (MLPPP), then skip this step.

  • Page 25: Configuring Qos Attributes

    Configuring QoS Attributes To use QoS on the MWR 1941-DC router, you must first create a class map. The class map defines the criteria that a packet must match to be placed in that class. Once you have created a class map, the router can recognize packets that are subject to QoS.
  • Page 26 Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Configuring Tasks The QoS functionality of the MWR 1941-DC router is built on the same code as the Cisco 10000 ESR Note (with some exceptions). For more information about the QoS feature, see Configuring Quality of Service (http://www.cisco.com/univercd/cc/td/doc/product/aggr/10000/10ksw/qosos.htm) and the...

  • Page 27: Creating A Policy Map

    Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Configuring Tasks Creating a Policy Map To create a policy map, use the following commands, beginning in global configuration mode: Command Purpose Step 1 Assigns a name to your policy map.

  • Page 28: Configuring Redundancy

    Assigns the QoS boilerplate to the multilink Router(config-if)# service-policy output policy-name interface. Configuring Redundancy The MWR 1941-DC router can be used in either a redundant configuration (preferable) or as a standalone device. Before implementing redundancy, you must disable EADI capabilities on the router using the Note diable-eadi global configuration command and also configure HSRP under the Fast Ethernet interface.
  • Page 29 Configuring Loopback Interfaces. Step 5 Exits y-cable configuration mode. Router(config-r-y)# exit To verify the status of the relays on an MWR 1941-DC router, use the show controllers command.

  • Page 30: Configuring The Link Noise Monitor

    Configuring Tasks Standalone MWR 1941-DC The MWR 1941-DC router has relays that work with a special “y” cable for redundancy and are controlled by HSRP. You can, however, use the MWR 1941-DC as a standalone device. If you choose not to use the MWR 1941-DC in a redundant configuration, you should not configure HSRP and you must control the relays of the VWIC card manually.

  • Page 31: Usage Notes

    Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Configuring Tasks The LNM provides the following types of noise monitors: Link Warning—Issues a warning when the noise level of a link exceeds a user-defined threshold and • notifies the operator when the noise level improves to the point that it drops below a second user-defined threshold.

  • Page 32: Configuring Lnm

    Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Configuring Tasks Configuring LNM To configure the LNM feature, issue the span command from controller configuration mode of each T1 or E1 link in the bundle that you want to monitor. To disable LNM on a link, issue the no version of the command from controller configuration mode of the link.

  • Page 33: Saving The Configuration

    Router# copy running-config startup-config that they are not lost during resets, power cycles, or power outages. Verifying the Configuration To verify the configuration of the MWR 1941-DC, enter the following command: Router# show running-config hostname MWR1900-1 boot system slot0:mwr-1900-boot ! description Loopback IP for O & M interface loopback 0 ip address 10.1.170.3 255.255.255.255...
  • Page 34 Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Configuring Tasks clock source internal linecode b8zs cablelength short 133ft class-map match-all class1_fch match ip dscp cs5 class-map match-all class2_sch match ip dscp cs4 class-map match-any class3_paging_ospf match ip dscp cs3...
  • Page 35 Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Configuring Tasks ip host cw4mw CW4MW_ip_address ip host btsha-other-0 192.168.146.2 ip host btsha-other-1 192.168.147.2 !interface Multilink1 description Backhaul Interface ip unnumbered loopback 2 cdp enable ppp multilink ip ospf hello-interval 1...
  • Page 36 Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Configuring Tasks standby 2 ip 192.168.147.3 standby 2 name two standby 2 track Fa0/0 10 standby 2 track Multilink2 10 standby 2 track Loopback101 10 standby 2 track Loopback102 5...
  • Page 37 • interface. Monitoring and Maintaining the MWR 1941-DC Router To monitor and maintain the MWR 1941-DC router (including the multilink, VWIC, and FE interfaces) and to view information about the PPP mux and header compression configuration, use the following commands:...
  • Page 38 Enabling Remote Management of the MWR 1941-DC Router Enabling Remote Management of the MWR 1941-DC Router You can use Cisco’s network management applications, such as CiscoWorks2000 for Mobile Wireless (CW4MW), to monitor and manage aspects of the MWR 1941-DC. To enable remote network management of the MWR 1941-DC, do the following:...

  • Page 39: Related Documentation

    Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Related Documentation Related Documentation This following documents contain important information about the Cisco MWR 1941-DC router: Cisco MWR 1941-DC Hardware Installation Guide • Cisco MWR 1941-DC Router Software Configuration Guide •...
  • Page 40 Cisco MWR 1941-DC Router with the Cisco IOS IP-RAN Feature Set Related Documentation...

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