Chapter

Frame Relay Service Modules (FRSMs)

Figure 4-7 Using FRASM for a FRAS BNN Connection

 

SDLC

 

MGX

ATM network

MGX

 

Remote Bisynch

 

 

FRASM

 

FRSM

End User Device

 

8220

Frame Relay

8220

 

 

 

 

 

 

 

 

 

 

 

 

 

over ATM

 

 

Frame

Relay

Front-end

Processor

NCP 7.1

Mainframe

VTAM1

11762

Using FRAS BNN, the FRASM supports

•Point-to-point SDLC/Frame Relay lines.

•Multidropped devices over a single logical port. These can be assigned to different connections.

•Only one DLCI to a single logical port.

•Only one connection to a single DLCI.

•One PVC for each logical port.

•Two-way simultaneous device transmission.

•Two-way simultaneous mode between different devices.

The supports 8-T1 lines with each line supporting up to 24-DS0 ports for a total of 192 logical ports. The physical interfaces can be configured as follows:

•DS0-A 2.4 kbps with or without NRZI

•DS0-A 4.8 kbps with or without NRZI

•DS0-A 9.6 kbps with or without NRZI

•DS0 56 kbps with or without NRZI

•DS0 64 kbps without NRZI

The card data throughput is 1392 kbps. This can be used as 145 ports at 9.6 kbps ports or 24 ports at 56 kbps or any combination of configurable port speeds for a total up through and including 1392 kbps. (See Figure 4-8.)

 

Cisco MGX 8220 Installation and Configuration

4-14

Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003

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Cisco Systems MGX 8220 manual Using Frasm for a Fras BNN Connection
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MGX 8220 specifications

The Cisco Systems MGX 8220 is a versatile, high-performance media gateway that has become an integral component in the telecommunications infrastructure. Designed to facilitate the transition from traditional circuit-switched networks to advanced packet-switched environments, the MGX 8220 supports a wide array of voice, video, and data services, making it an essential tool for service providers and enterprises seeking to enhance their network capabilities.

One of the key features of the MGX 8220 is its robust signaling and media processing capabilities. Equipped with support for both Voice over IP (VoIP) and traditional telephony protocols, this gateway enables seamless integration of different communication formats. It boasts a modular architecture, which allows for the addition or removal of various line cards to meet changing demands and technology advancements. This modularity provides operators with the flexibility to scale their services without significant overhauls to their existing infrastructure.

The MGX 8220 is capable of delivering high-density media handling for a multitude of services. With its support for ATM and IP networks, the gateway can handle TDM (Time-Division Multiplexing) to packet voice conversions efficiently. It is designed to optimize network resources by dynamically allocating bandwidth based on traffic requirements, thus ensuring efficient use of network resources and improved performance.

Another significant characteristic of the MGX 8220 is its enhanced quality of service (QoS) features. This capability ensures that voice and video traffic is prioritized appropriately, minimizing latency and jitter while maximizing overall call quality. By employing sophisticated traffic management techniques, the MGX 8220 can deliver a superior user experience, which is critical for any service provider aiming to offer competitive communication solutions.

Furthermore, the gateway includes built-in security features to protect against unauthorized access and ensure the integrity of sensitive data. This includes encryption for voice and video transmission, as well as support for secure signaling protocols.

Overall, the Cisco Systems MGX 8220 stands out as a comprehensive media gateway solution, providing essential functionalities for modern communication needs. Its combination of modularity, high-density processing, effective QoS management, and security features makes it a compelling choice for organizations looking to modernize their telecommunications infrastructure while ensuring reliability and performance. As businesses continue to evolve and demand more from their networks, the MGX 8220 offers a pathway to future-ready communications.
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