Table Of Contents
G.SHDSL Symmetric DSL Support for Cisco IAD2420 Series IAD
Supported Standards, MIBs, and RFCs
Configuring G.SHDSL on Cisco IAD2420 Series IADs
G.SHDSL Symmetric DSL Support for Cisco IAD2420 Series IAD
Feature History
This document describes the Multirate Symmetrical High-Speed Digital Subscriber Line (G.SHDSL) feature supported on the Cisco IAD2420 series integrated access devices (IADs) in Cisco IOS Release 12.2(8)T.
This document includes the following sections:
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Supported Standards, MIBs, and RFCs
Feature Overview
G.SHDSL is ATM-based, multirate, high-speed (up to 2.3 MB), symmetrical digital subscriber line technology for data transfer between a single customer premises equipment (CPE) subscriber and a central office (CO). G.SHDSL refers to the approved standard officially designated in ITU-T G.991.2.
The Cisco IAD2420 series IADs support G.SHDSL in the following models: IAD2424-8FXS, IAD2424-16FXS, IAD2424-16FXS8FXO, and IAD2424-1T1. These models are compatible with the Cisco 6160 and Cisco 6260 Digital Subscriber Line Access Multiplexers (DSLAM). The DSLAM must be equipped with compatible G.SHDSL line cards.
The Cisco IAD2424 IAD supports ATM Adaption Layer 2 (AAL2), ATM Adaption Layer 5 (AAL5), and quality of service (QoS) features for both voice and data services.
Benefits
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Restrictions
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Related Documents
For more information about voice configuration, see the following documents:
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For more information about configuring IP, see the Cisco IOS IP Configuration Guide, Release 12.2.
For more information about configuring ATM, see "Configuring ATM" in the Cisco IOS Wide-Area Networking Configuration Guide, Release 12.2.
For information about configuring a DSLAM, see the Configuration Guide for Cisco DSLAMs with NI-2.
For information about installing and configuring Cisco IAD2420 series IAD hardware and software, see the documents listed at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/access/iad/iad2420/index.htmSupported Platforms
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Supported Standards, MIBs, and RFCs
Standards
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MIBs
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To obtain lists of supported MIBs by platform and Cisco IOS release, and to download MIB modules, go to the Cisco MIB web site on Cisco.com at the following URL:
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.RFCs
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Prerequisites
A compatible G.SHDSL line card must be installed in the DSLAM.
Configuration Tasks
See the following sections for configuration tasks for the G.SHDSLfeature. Each task in the list is identified as either required or optional.
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Configuring G.SHDSL on Cisco IAD2420 Series IADs
To configure G.SHDSL service on the Cisco IAD2420 series IAD that supports G.SHDSL, complete the following steps, beginning in global configuration mode:
Verifying ATM Configuration
You can verify the ATM interface configuration by doing the following:
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Router# show interface atm 0ATM0 is up, line protocol is upHardware is DSLSAR (with Globespan G.SHDSL Module)MTU 4470 bytes, sub MTU 4470, BW 800 Kbit, DLY 2560 usec,reliability 255/255, txload 1/255, rxload 1/255Encapsulation ATM, loopback not setKeepalive not supportedEncapsulation(s):AAL5 AAL2, PVC mode24 maximum active VCs, 256 VCs per VP, 2 current VCCsVC idle disconnect time:300 secondsLast input never, output 00:00:01, output hang neverLast clearing of "show interface" counters 03:16:00Queueing strategy:fifoOutput queue 0/40, 0 drops; input queue 0/75, 0 drops30 second input rate 0 bits/sec, 0 packets/sec30 second output rate 0 bits/sec, 0 packets/sec2527 packets input, 57116 bytes, 0 no bufferReceived 0 broadcasts, 0 runts, 0 giants, 0 throttles0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort10798 packets output, 892801 bytes, 0 underruns0 output errors, 0 collisions, 0 interface resets0 output buffer failures, 0 output buffers swapped out•
Router# show controller shdsl 0SHDSL 0 controller UPSLOT 3: Globespan xDSL controller chipsetFrame mode: Serial ATMConfigured Line rate: 1160KbpsLine Re-activated 0 times after system bootupLOSW Defect alarm: NoneCRC per second alarm: NoneLine termination: CPEFPGA Revision: 9Current 15 min CRC: 0Current 15 min LOSW Defect: 0Current 15 min ES: 0Current 15 min SES: 0Current 15 min UAS: 7Previous 15 min CRC: 0Previous 15 min LOSW Defect: 0Previous 15 min ES: 0Previous 15 min SES: 0Previous 15 min UAS: 7Chipset Version: 1Firmware Version: R1.2Modem Status: DataLine rate: 1160 KbpsFramer Sync Status: In SyncRcv Clock Status: In the RangeLoop Attenuation: 0.0 dBTransmit Power: 13.5 dBReceiver Gain: 11.420 dBSNR Sampling: 40Last Fail Mode: No Failure•
Router#Router# conf tEnter configuration commands, one per line. End with CNTL/Z.iad1(config)#contr shds 0iad1(config-controller)#shutiad1(config-controller)#01:30:46: %CONTROLLER-5-UPDOWN: Controller SHDSL 0, changed state to administratively down01:30:49: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0, changed state to downiad1(config-controller)#endRouter# show controller shdsl 0SHDSL 0 controller ADMINDOWNSLOT 3: Globespan xDSL controller chipsetFrame mode: Serial ATMConfigured Line rate: 1160KbpsLine Re-activated 2 times after system bootupLOSW Defect alarm: NoneCRC per second alarm: NoneLine termination: CPEFPGA Revision: 9Current 15 min CRC: 0Current 15 min LOSW Defect: 0Current 15 min ES: 0Current 15 min SES: 0Current 15 min UAS: 7Previous 15 min CRC: 0Previous 15 min LOSW Defect: 0Previous 15 min ES: 0Previous 15 min SES: 0Previous 15 min UAS: 0Chipset Version: 1Firmware Version: R1.2Modem Status: IdleVerifying Your Configuration
You can perform the following tests at any time to verify the hardware or software configuration of the Cisco IAD2420 series IADs:
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Configuration Example
The following example shows a typical running configuration with the initial configuration tasks completed:
Router#Router# show running configBuilding configuration...Current configuration : 1654 bytes!version 12.2no service single-slot-reload-enableno service padservice timestamps debug uptimeservice timestamps log uptimeno service password-encryption!hostname Router!boot system flash:c2420-a2i8sv5-mz.1.0.9logging rate-limit console 10 except errors!network-clock base-rate 56kip subnet-zero!!!ip audit notify logip audit po max-events 100no ip dhcp-client network-discoverylcp max-session-starts 0!!!!no voice confirmation-tonevoice-card 0!!!controller SHDSL 0mode atm!controller T1 1mode casframing esfclock source loop-timedlinecode b8zsds0-group 1 timeslots 1-24 type e&m-immediate-start!!!interface Loopback0ip address 3.3.3.3 255.255.0.0!interface Ethernet0ip address 1.3.95.50 255.255.0.0no ip mroute-cache!interface Serial0bandwidth 10000000ip address 180.100.9.11 255.255.255.0no keepalive!interface ATM0no ip addressip mroute-cacheatm idle-cell-format ituatm enable-payload-scramblingno atm ilmi-keepalivepvc 110/110vbr-rt 2304 2304 65535vcci 2encapsulation aal2!!router eigrp 10network 10.0.0.0network 180.100.0.0no auto-summaryno eigrp log-neighbor-changes!ip classlessip route 0.0.0.0 0.0.0.0 1.3.0.1ip route 2.2.2.2 255.255.255.255 10.10.10.2no ip http server!call rsvp-sync!voice-port 1:1!mgcpmgcp call-agent 1.4.173.1 service-type mgcp version 0.1mgcp tse payload 100no mgcp timer receive-rtcpmgcp timer net-cont-test 3000!mgcp profile default!dial-peer cor custom!!!dial-peer voice 1 potsapplication mgcpappport 1:1!!line con 0exec-timeout 0 0line aux 0line 2 3line vty 0 4login!endCommand Reference
This section documents new commands. All other commands used with this feature are documented in the Cisco IOS Release 12.2 command reference publications:
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controller shdsl
To configure the controller mode on the controller, use the controller shdsl command in global configuration mode.
controller shdsl 0
Syntax Description
Defaults
The default for the controller number is 0.
Command Modes
Global configuration
Command History
11.3(5)AAA
This command was introduced.
12.2(8)T
This command was implemented on Cisco IAD2420 series IADs.
Usage Guidelines
This command is used to configure the controller mode and the controller number.
Examples
The following example shows how to enter the controller mode of SHDSL on controller number 0 and configure the ATM mode:
Router# controller shdsl 0Router# mode atmRelated Commands
mode atm
To set the mode of the T1/E1 controller and enter specific configuration commands for each mode type, use the mode command in controller configuration mode. To restore the default mode of the controller, use the no form of this command.
mode atm
no mode atm
Syntax Description
atm
Places the controller into ATM mode and creates an ATM interface (ATM 0) on the Cisco IAD24210 series.
ATM mode is supported only on controller 0.
Defaults
The default is that no mode is configured.
Command Modes
Controller configuration
Command History
11.3(1)MA
This command was introduced.
12.2(8)T
This command was implemented in Cisco IAD2420 series IADs.
Usage Guidelines
This command applies to the Cisco IAD2420 series IADs with support for G.SHDSL.
Examples
The following example shows how to enter the controller mode of SHDSL on controller number 0 and configure the ATM mode:
Router# controller shdsl 0Router# mode atmRelated Commands
show controller shdsl 0
To display the controller mode of the controller, use the show controller shdsl 0 command in global configuration mode.
show controller shdsl 0
Syntax Description
Defaults
The default for the controller number is 0.
Command Modes
Global configuration
Command History
Usage Guidelines
This command is used to display the controller mode and the controller number and to view the statistics.
Examples
The following example displays the controller mode of SHDSL on controller number 0 to verify the controller status:
Router# show controller shdsl 0SHDSL 0 controller UPSLOT 3: Globespan xDSL controller chipsetFrame mode: Serial ATMConfigured Line rate: 1160KbpsLine Re-activated 0 times after system bootupLOSW Defect alarm: NoneCRC per second alarm: NoneLine termination: CPEFPGA Revision: 9Related Commands
Glossary
ADSL—Asymmetric DSL (ADSL) available through several telecommunications carriers to accommodate the need for increased bandwidth for Internet access and telecommuting applications.
ATM—Asynchronous Transfer Mode. International standard for cell relay in which multiple service types (such as voice, video, or data) are conveyed in fixed-length (53-byte) cells. Fixed-length cells allow cell processing to occur in hardware, thereby reducing transit delays. ATM is designed to take advantage of high-speed transmission media such as E3, SONET, and T3.
CLI—command line interface.
CO—central office. Local exchange (local switch) that terminates individual local telephone subscriber lines for switching and connects to the public network. Known as a class 5 switch office. For example, 5ESS by Lucent and DMS 100 by Nortel.
CPE—customer premises equipment. Devices such as channel service units, data service units, modems, and ISDN terminal adapters, required to provide an electromagnetic termination for wide-area network circuits before connecting to the router or access server. This equipment was historically provided by the telephone company, but is now typically provided by the customer in North American markets.
DSL—Digital Subscriber Line available through several telecommunications carriers to accommodate the need for increased bandwidth for Internet access and telecommuting applications.
FXO—Foreign Exchange Office. An FXO interface connects to a central office.
FXS—Foreign Exchange Station: An FXS interface connects directly to a standard telephone, supplying ring voltage, dial tone, and so on.
G.SHDSL—Multirate Symmetrical High-Speed Digital Subscriber Line.
IAD—integrated access device. A CPE device used to combine services from various sources onto a common platform for transmission on a common transport span. Typically, an IAD combines various voice and data services such as circuit-based services like traditional telephone service and packet-switched services such as frame relay or ATM.
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