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Cisco Systems 8xDMT - page 1
1 Cisco IOS Release 12.1(6)DA Octal-Port DMT ATU-C Line Card This feature module describes the Cisco IOS support for the octal-port DMT A TU-C (8xDMT) line card. It includes information on new and modif ied commands. This document includes the following sections: • Feature Overvie w , page 1 • Supported Platforms, page 4 • Supported Standards ...
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Cisco Systems 8xDMT - page 2
Octal-Port DMT ATU-C Line Card Feature Overview 2 Cisco IOS Release 12.1(6)DA Benefits G.hs Support (ITU G.994.1) G.hs support is provided through both the MIB and the CLI. Features from G.hs that are supported include: • Enabling/disabling all or one of the following modes. – G.dmt – T1.413 Issue 2 – G.lite • Setting auto mode defers the ...
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Cisco Systems 8xDMT - page 3
Octal-Port DMT ATU-C Line Card Feature Overview 3 Cisco IOS Release 12.1(6)DA Note The original option, which generates a minor alarm when conf igured minimum bit rates are not met, is conf igured by default in DSL prof iles. The default conf iguration is no dmt minrate-blocking . • dmt rate-adaptation The dmt rate-adaptation command monitors the ...
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Cisco Systems 8xDMT - page 4
Octal-Port DMT ATU-C Line Card Supported Platforms 4 Cisco IOS Release 12.1(6)DA Supported Platforms DSLAMs This feature supports the 8xDMT line card on the Cisco 6015, Cisco 6160, and Cisco 6260 platforms with NI-2. T able 1 details the total av ailable ADSL modem connections for each chassis. The 8xDMT is designed for use with the Cisco 6015, Cis ...
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Cisco Systems 8xDMT - page 5
Octal-Port DMT ATU-C Line Card Supported Standards, MIBs, and RFCs 5 Cisco IOS Release 12.1(6)DA Supported Standards, MIBs, and RFCs Standards • ANSI T1.413-Issue 2, Category 1 only • ANSI T1.413-Issue 2, Annex F (Reduced NEXT) • Uni versal T est & Operations PHY for A TM, Lev el 2; A standard for transport of A TM cells ov er a 16-bit pa ...
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Cisco Systems 8xDMT - page 6
Octal-Port DMT ATU-C Line Card Prerequisites 6 Cisco IOS Release 12.1(6)DA Prerequisites T o use the 8xDMT feature, you must hav e one of the following DSLAMs with the 8xDMT line card, and IOS 12.1(6) or abov e installed: • Cisco 6015 • Cisco 6160 • Cisco 6260 Configuration Tasks See the follo wing sections for conf iguration tasks for the 8x ...
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Cisco Systems 8xDMT - page 7
Octal-Port DMT ATU-C Line Card Configuration Tasks 7 Cisco IOS Release 12.1(6)DA Creating and Associating a DSL Profile with Each Port Before starting this conf iguration task, install the 8xDMT line card. Refer to the Octal-P ort DMT A TU-C Line Car d FR U Installation and Conf iguration Notes for information on installing the 8xDMT line card. Sta ...
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Cisco Systems 8xDMT - page 8
Octal-Port DMT ATU-C Line Card Monitoring and Maintaining the 8xDMT Line Card 8 Cisco IOS Release 12.1(6)DA Troubleshooting Tips Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample conf igurations from online tools. For Cisco.com re gistered use ...
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Cisco Systems 8xDMT - page 9
Octal-Port DMT ATU-C Line Card Configuration Examples 9 Cisco IOS Release 12.1(6)DA Configuration Examples The following e xample shows a prof ile named 8xDMT2 being created. The prof ile uses the default prof ile values for any parameters not specif ied. Current configuration : 7019 bytes ! version 12.1 no service pad service timestamps debug upti ...
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Cisco Systems 8xDMT - page 10
Octal-Port DMT ATU-C Line Card Command Reference 10 Cisco IOS Release 12.1(6)DA Command Reference This section documents the new and modif ied commands that are specif ic to the8xDMT feature. All other commands used with this feature are documented in the Command Refer ence for Cisco DSLAMS with NI-2 . For information on other Cisco IOS commands th ...
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Cisco Systems 8xDMT - page 11
Octal-Port DMT ATU-C Line Card alarms 11 Cisco IOS Release 12.1(6)DA alarms T o enable alarms in prof ile command mode, use the alarms command. T o disable alarms, use the no form of the command. alarms Syntax Description This command has no keyw ords or arguments. Defaults Disabled. Command Modes Prof ile conf iguration. Command History Usage Guid ...
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Cisco Systems 8xDMT - page 12
Octal-Port DMT ATU-C Line Card alarms 12 Cisco IOS Release 12.1(6)DA Note The alarms command has no effect on critical alarms, major alarms, or minor alarms related to subsystems other than the DSL subscriber ports. Examples In this example, the command enables alarms for the def ault prof ile: DSLAM# configure terminal DSLAM(config)# dsl-profile d ...
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Cisco Systems 8xDMT - page 13
Octal-Port DMT ATU-C Line Card dmt bitrate 13 Cisco IOS Release 12.1(6)DA dmt bitrate T o set the maximum and minimum allo wed bit rates for the fast or interleav ed DMT prof ile parameters, use the dmt bitrate prof ile conf iguration command. T o reset this command to the default value, use the no form of this command. dmt bitrate maximum {fast | ...
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Cisco Systems 8xDMT - page 14
Octal-Port DMT ATU-C Line Card dmt bitrate 14 Cisco IOS Release 12.1(6)DA Caution This command causes the port to retrain when you change the value of the bit rate parameter . Setting a parameter to its current value does not cause a retrain. If a port is training when you change the parameter , the port stops training and retrains to the new param ...
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Cisco Systems 8xDMT - page 15
Octal-Port DMT ATU-C Line Card dmt check-bytes 15 Cisco IOS Release 12.1(6)DA dmt check-bytes T o set upstream and do wnstream FEC check (redundancy) bytes, use the dmt-checkbytes prof ile conf iguration command. T o reset this command to the default value, use the no form of this command. dmt check-bytes {fast | interleaved} downstream bytes upstr ...
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Cisco Systems 8xDMT - page 16
Octal-Port DMT ATU-C Line Card dmt check-bytes 16 Cisco IOS Release 12.1(6)DA Related Commands None. ...
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Cisco Systems 8xDMT - page 17
Octal-Port DMT ATU-C Line Card dmt margin 17 Cisco IOS Release 12.1(6)DA dmt margin T o set upstream and do wnstream signal-to-noise ratio (SNR) margins for a DMT prof ile, use the dmt margin command. T o reset this command to the default value, use the no form of this command. dmt margin downstr eam dmt-margin upstr eam dmt-margin Syntax Descripti ...
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Cisco Systems 8xDMT - page 18
Octal-Port DMT ATU-C Line Card dmt minrate-blocking 18 Cisco IOS Release 12.1(6)DA dmt minrate-blocking T o force a port not to retrain when actual bit rates fall below the v alues conf igured in the dmt bitrate minimum command, use the dmt minrate-blocking command. T o disable dmt minrate-blocking, use the no form of the command. dmt minrate-block ...
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Cisco Systems 8xDMT - page 19
Octal-Port DMT ATU-C Line Card dmt overhead-framing 19 Cisco IOS Release 12.1(6)DA dmt overhead-framing T o set the ov erhead framing mode, use the dmt overhead-framing command.T o reset this command to the default v alue, use the no form of this command. dmt overhead-framing {mode0 | mode1 | mode2 | mode3 } Syntax Description Defaults Mode3. Comma ...
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Cisco Systems 8xDMT - page 20
Octal-Port DMT ATU-C Line Card dmt overhead-framing 20 Cisco IOS Release 12.1(6)DA • Mode 2—Reduced ov erhead framing with separate fast and sync bytes in the fast and interlea ved latency b uffers respecti vely . • Mode 3—Reduced ov erhead framing with merged fast and sync bytes using either the f ast or interleav ed latency b uffer . Note ...
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Cisco Systems 8xDMT - page 21
Octal-Port DMT ATU-C Line Card dmt rate-adaptation enable 21 Cisco IOS Release 12.1(6)DA dmt rate-adaptation enable DMT rate adaptation monitors upstream and downstream DMT ports for signal-to-noise ratio (SNR) margins during specif ied time intervals. If an unacceptable SNR mar gin is detected, the port is retrained at a lo wer bit rate to improve ...
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Cisco Systems 8xDMT - page 22
Octal-Port DMT ATU-C Line Card dmt rate-adaptation interval 22 Cisco IOS Release 12.1(6)DA dmt rate-adaptation interval T o change the interv als during which a DMT port is monitored for signal-to-noise ratio (SNR) margins, use the dmt rate adaptation interval command in DSL prof ile conf iguration mode. T o disable dmt rate adaptation interval , u ...
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Cisco Systems 8xDMT - page 23
Octal-Port DMT ATU-C Line Card dmt rate-adaptation interval 23 Cisco IOS Release 12.1(6)DA Usage Guidelines Use the dmt rate-adaptation interval to specify the frequenc y at which line margins are checked on a DMT port. The dmt rate-adaptation interval command works in conjunction with the dmt rate-adaptation margin command. If the actual SNR margi ...
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Cisco Systems 8xDMT - page 24
Octal-Port DMT ATU-C Line Card dmt rate-adaptation margin 24 Cisco IOS Release 12.1(6)DA dmt rate-adaptation margin T o conf igure the minimum acceptable SNR margins on a DMT port, which force the port to retrain when bad margins e xist for the duration of the dmt rate-adaptation interval, use the dmt rate adaptation margin command in DSL prof ile ...
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Cisco Systems 8xDMT - page 25
Octal-Port DMT ATU-C Line Card slot 25 Cisco IOS Release 12.1(6)DA slot T o provision a slot for a specif ic card type, or to change the line coding for a f lexi line card, use the slot command. slot slot# car dtype Syntax Description Defaults None. Command Modes Global conf iguration. Command History slot# The number of the slot you want to provis ...
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Cisco Systems 8xDMT - page 26
Octal-Port DMT ATU-C Line Card slot 26 Cisco IOS Release 12.1(6)DA Usage Guidelines Use the slot command to provision a slot for a line card. Card mismatch error conditions include the follo wing: • A line card is already installed in the specif ied slot • The specif ied slot contains one type of card but is provisioned for another type If you ...
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Cisco Systems 8xDMT - page 27
Octal-Port DMT ATU-C Line Card Glossary 27 Cisco IOS Release 12.1(6)DA Glossary A ADSL Asymmetric Digital Subscriber Line. A digital subscriber line (DSL) technology in which the transmission of data from server to client is much faster than the transmission from the client to the server . ADSL Transmission Unit—central office See A TU-C . ADSL T ...
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Cisco Systems 8xDMT - page 28
Octal-Port DMT ATU-C Line Card Glossary 28 Cisco IOS Release 12.1(6)DA DDTS Cisco Distributed Defect T racking System. digital signal level 3 See DS3 . Distributed Defect Tracking System See DDTS . DS3 digital signal le vel 3. Framing specif ication used for transmitting digital signals at 44.736 Mbps on a T3 facility . DSLAM Digital Subscriber Lin ...
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Cisco Systems 8xDMT - page 29
Octal-Port DMT ATU-C Line Card Glossary 29 Cisco IOS Release 12.1(6)DA IP address The 32-bit address assigned to hosts that want to participate in a TCP/IP Internet. ITU The International T elecommunications Union; a telecommunications standards body . L LCD Loss of Cell Delineation LODS Loss Of Delay Synchronization LOF Loss Of Frame. loopback A d ...
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Cisco Systems 8xDMT - page 30
Octal-Port DMT ATU-C Line Card Glossary 30 Cisco IOS Release 12.1(6)DA router A system responsible for making decisions about which of sev eral paths network (or Internet) traf f ic will follo w . T o do this, it uses a routing protocol to gain information about the network and algorithms to choose the best route based on sev eral criteria known as ...
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Cisco Systems 8xDMT - page 31
Octal-Port DMT ATU-C Line Card Glossary 31 Cisco IOS Release 12.1(6)DA U upstream rate The line rate for message or data transfer from the source machine to a destination machine on the network. Also see do wnstream rate. V VC V irtual circuit. A logical circuit created to ensure reliable communication between two network devices. A virtual circuit ...
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Cisco Systems 8xDMT - page 32
Octal-Port DMT ATU-C Line Card Glossary 32 Cisco IOS Release 12.1(6)DA ...
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