Cisco Systems 8xDMT manual Downstream Upstream, Path Aggregate Configuration Data Range Default

Page 14

Octal-Port DMT ATU-C Line Card

dmt bitrate

Table 2

Allowable Ranges and Default Values for DMT Bit Rates

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Downstream

 

Upstream

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Aggregate

 

Path

Path

Aggregate

Path

Path

Configuration

 

Data

Range

 

Range

Default

Range

Range

Default

Parameter

 

 

 

Path

(kbps)

 

(kbps)

(kbps)

(kbps)

(kbps)

(kbps)

 

 

 

 

 

 

 

 

 

 

 

 

DMT bit rate max

 

Fast

8064 to 32

 

8064 to 32

0

864 to 32

864 to 0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DMT bit rate min

 

Fast

8064 to 32

 

8064 to 0

0

864 to 32

864 to 0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DMT bit rate max

 

Interleaved

8064 to 32

 

8064 to 32

640

864 to 32

864 to 0

128

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DMT bit rate min

 

Interleaved

8064 to 32

 

8064 to 0

128

864 to 0

864 to 0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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 parameter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Examples

 

 

 

 

In this example, the command sets the maximum interleaved bit rate of the default profile to 3200 kbps

 

 

 

 

 

downstream and 640 kbps upstream:

 

 

 

 

 

 

 

 

 

 

 

DSLAM# configure terminal

 

 

 

 

 

 

 

 

 

 

 

DSLAM(config)# dsl-profile default

 

 

 

 

 

 

 

 

 

 

 

DSLAM(config-dsl-prof)#dmt bitrate maximum interleaved downstream 3200 upstream 640

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Related Commands

 

 

Command

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

show dsl profile

Display a specific profile, all ports to which the profile is currently attached,

 

 

 

 

 

 

 

and those port settings.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cisco IOS Release 12.1(6)DA

14

Image 14
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 DocumentsNumber of Available 8xDMT Chassis Slots Supported PlatformsDSLAMs Standard Mibs Supported Standards, MIBs, and RFCsStandards Cisco-Derived MibsPrerequisites Configuration TasksCommand Purpose 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 ReleaseModification Dmt marginDmt margin downstream dmt-marginupstream dmt-margin IOS 12.16DA This command was introduced Syntax Description Defaults Command ModesCommand History Release Modification Dmt minrate-blockingSyntax Description Defaults Command Modes Command History Usage GuidelinesDmt overhead-framing 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 Min Dmt rate-adaptation marginDmt rate-adaptation margin min downstream dB upstream dB None Global configuration SlotUsage Guidelines Examples Glossary Pseudonym for G.992.1 Loss of signal Loss Of Delay SynchronizationProblem is found Loss of Cell DelineationRemote host and act as normal terminal users of that host LAN. Has no password securityProviding reliable, connection-oriented full-duplex streams 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.