Cisco Systems 8xDMT manual Providing reliable, connection-oriented full-duplex streams

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Octal-Port DMT ATU-C Line Card

Glossary

router

routing table

A system responsible for making decisions about which of several paths network (or Internet) traffic will follow. To do this, it uses a routing protocol to gain information about the network and algorithms to choose the best route based on several criteria known as “routing metrics.” See also bridge.

Information stored within a router that contains network path and status information. It is used to select the most appropriate route to forward information along.

S

Simple Network

Management

Protocol

slot

SNMP

SVC

See SNMP.

A numbered location within a chassis capable of housing a module.

Simple Network Management Protocol. The network management protocol of choice for TCP/IP-based internets.

Stands for switched virtual connection. A temporary virtual connection between two users.

T

TCP

Transmission Control Protocol. The major transport protocol in the Internet suite of protocols

 

providing reliable, connection-oriented full-duplex streams.

T1.413

The ANSI standard for line coding and framing for full rate ADSL.

Telnet

The virtual terminal protocol in the Internet suite of protocols. Allows users of one host to log into a

 

remote host and act as normal terminal users of that host.

TFTP

Trivial File Transfer Protocol. A simple file transfer protocol (a simplified version of FTP) that is often

 

used to boot diskless workstations and other network devices such as routers over a network (typically

 

a LAN). Has no password security.

training

training mode

Transmission Control Protocol

Trivial File Transfer Protocol

trellis encoding

twisted pair

The procedure used by the ATU-C and ATU-R to establish an end-to-end ADSL connection.

Characteristic of a router that allows it to use RADSL technology to adjust its line speed according to noise conditions on the transmission line.

See TCP.

See TFTP.

A channel coding technique which provides forward error correction capability.

Two insulated copper wires twisted together with the twists or lays varied in length to reduce potential signal interference between the pairs.

Cisco IOS Release 12.1(6)DA

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Contents Feature Overview Octal-Port DMT ATU-C Line CardFast or Interleaved Path Selection Hs Support ITU G.994.1Bit Swapping Trellis EncodingMinrate-blocking Dmt rate-adaptation Hardware Documents Software DocumentsSupported Platforms DSLAMsNumber of Available 8xDMT Chassis Slots Standard Mibs Supported Standards, MIBs, and RFCsStandards Cisco-Derived MibsConfiguration Tasks Command PurposePrerequisites Select the profile that you want to attach to Enter DSL profile configuration modeUpstream on the fast path. Automatically configures Selected port. The profile name 8xDMT is used asMonitoring and Maintaining the 8xDMT Line Card Configuration Examples Current configuration 7019 bytesCommand Reference Syntax Description Defaults Command Modes Command History AlarmsAlarms Release ModificationCommand Description ExamplesCommand Modes Command History Dmt bitrateDownstream Upstream Path Aggregate Configuration Data Range DefaultThose port settings Path KbpsValues for the connection You, use the dmt bitrate command to reduce the bit rateDmt check-bytes Downstream and 6 upstreamRelated Commands None Dmt margin Dmt margin downstream dmt-marginupstream dmt-marginReleaseModification IOS 12.16DA This command was introduced Syntax Description Defaults Command ModesCommand History Release Modification Dmt minrate-blockingDefaults Command Modes Command History Usage Guidelines Dmt overhead-framingSyntax Description T1.413 and G992.1 G992.2 Framing Mode Downstream Upstream Related Commands DescriptionDmt rate-adaptation enable Dmt rate-adaptation enableAdaptation, use the no form of the command This command has no arguments or keywordsDefaults Command Modes Command History Dmt rate-adaptation intervalUpstream monitoring interval is 20 seconds Dmt rate-adaptation margin Dmt rate-adaptation margin min downstream dB upstream dBMin None Global configuration SlotUsage Guidelines Examples Glossary Pseudonym for G.992.1 Loss of signal Loss Of Delay SynchronizationProblem is found Loss of Cell DelineationLAN. Has no password security Providing reliable, connection-oriented full-duplex streamsRemote host and act as normal terminal users of that host VCI VPI

8xDMT specifications

Cisco Systems’ 8xDMT, or "Eightfold Digital Multicast Technology," is a pioneering solution designed to optimize multicast traffic management and enhance the scalability of network performance. This technology comes into play primarily in video broadcasting, online gaming, and other applications that require the efficient distribution of data to multiple endpoints, significantly reducing the bandwidth use while improving overall network efficiency.

One of the primary features of Cisco 8xDMT is its ability to support multiple multicast streams concurrently. By using advanced algorithms, 8xDMT ensures that network resources are utilized efficiently, minimizing latency and maximizing throughput. This makes it particularly advantageous for service providers and organizations that deliver high-definition video content or require real-time data transmission across geographic locations.

Another notable characteristic of the Cisco 8xDMT is its integrated Quality of Service (QoS) capabilities. This feature allows for the prioritization of multicast traffic, ensuring that critical data packets are transmitted smoothly without delay, even during peak load times. The QoS management allows administrators to configure settings that guarantee minimal disruptions, providing end users with a seamless viewing or gameplay experience.

Additionally, Cisco 8xDMT takes advantage of Multicast Domain Name System (mDNS), which allows devices on the same network to discover and communicate efficiently. This not only aids in reducing the network load but also simplifies the management of multicast addresses, making it easier for organizations to scale their operations without significant overhead.

The technology also incorporates robust security features, including support for secure multicast transmissions. This ensures that sensitive data remains protected during distribution, addressing the increasing need for security in an era where cyber threats are prevalent.

Furthermore, Cisco Systems emphasizes interoperability with its 8xDMT platform, ensuring easy integration with existing network infrastructure. This is crucial for enterprises looking to modernize their systems without the need for extensive reinvestment in new hardware.

In conclusion, Cisco Systems’ 8xDMT stands out as a versatile and high-performance multicast solution designed to meet modern networking demands. With its ability to manage multiple streams, enforce QoS, simplify multicast management, and secure communications, it holds significant potential for transforming how organizations distribute data efficiently and effectively.
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