Cisco Systems MGX-FRSM-2CT3 manual Frame Relay-to-ATM Service Interworking, PVC Status Management

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Description of Connection Types on the FRSM

PVC Status Management

The management of ATM layer and FR PVC status management can operate independently. The PVC status from the ATM layer is used when determining the status of the FR PVC. However, no direct actions of mapping LMI A bit to OAM AIS is performed.

Frame Relay-to-ATM Service Interworking

By specifying a service interworking (SIW) channel type when you add a Frame Relay PVC to an FRSM, all data is subject to SIW translation and mapping in both the Frame Relay-to-ATM and ATM-to-Frame Relay directions. A BPX 8620 network with SIW connections appears in Figure 6-3.

Figure 6-3 BPX 8600-Series Network with SIW Connections

T1 or E1

ATM FUNI CPE

ATM UNI CPE

T1 or E1

FRSM

RPM

MGX 8850

BPX 8620 network

PVCs

BPX 8620

B

X

M

T3, E3, OC3

ATM-UNI CPE

MGX 8850 FRSM

FR UNI

CPE

17909

In Figure 6-3,an MGX 8850 node on the right has three Frame Relay SIW connections terminating on an FRSM. Three far-end terminations for these connections appear in other parts of Figure 6-3:

•ATM FUNI (framed UNI) port on an FRSM

•ATM UNI port on an RPM

•ATM UNI port on a BPX 8600-series BXM card

In addition to frame-to-cell and DLCI-to-VPI/VCI conversion, SIW maps cell loss priority and congestion data between the Frame Relay and ATM formats and is FRF.8-compliant. It provides full support for routed and bridged PDUs, transparent and translation modes, and VP translation.

Cell Loss Priority

In addition to frame-to-cell and DLCI-to-VPI/VCI conversion, the SIW feature maps cell loss priority (CLP) and congestion information from Frame Relay-to-ATM formats.

You can modify the CLP and congestion indicators for individual connections. On the CLI., use the cnfchanmap command. In the Frame Relay-to-ATM direction, you can specify one of the following discard eligibility (DE)-to-cell loss priority (CLP) schemes for an individual SIW connection:

•DE bit in the Frame Relay frame is mapped to the CLP bit of every ATM cell generated by frame segmentation.

•CLP is always 0.

6-24Cisco MGX 8850 Installation and Configuration, Release 1.1.00, Part Number 78-6186-02

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Contents Tasks for Configuring Cards and Services Modifying the Resource PartitioningSequence of Configuration Tasks Rules for Adding ConnectionsRules for Adding a DAX Connection Rules for Adding Three-Segment ConnectionsRules for Adding Management Connections Processor Switching Module Configuring Card-Level Parameters, Lines, and Ports Cnfcdrscprtn numberPARconns numberPNNIconns numberTAGconnsAddport portnum linenum pctbw minvpi maxvpi Automatic Protection Switching on the PXM Cnfatmln linenum typeProcessor Switching Module Adding Connections on a PXM in a Stand-Alone Node Cnfcon connID routepriority maxcost restricttrunktype CACCnfupcubr connID polType pcr0+1 cdvt0+1 IngPcUtil CLP ATM Universal Service Module Using the CLI to Configure the Card, Lines, and PortsCnfcdrscprtn 300 300 Cnfportq portnum qnum qalgo qdepth clphigh clplow efcithresUsing the CLI to Configure Inverse Multiplexing Adding and Configuring Connections on the AUSM/BAddimagrp groupnum porttype listoflinks minNumLink Porttype Is the port type 1=UNI, 2=NN1Default is slave, so you actually do not need to type a ConnIDSlot number, port number, vci, and vpi of the slave end ATM Universal Service Module Adding and Configuring Connections on the AUSM/B BPX 8600-to-BPX 8600 Segment EpdthresholdEfcithresh Is the Efci threshold in the range 1-16000 cells Frame Service Module Features Types of Frame Service ModulesVery High Speed Frame Service Modules IntroductionFrame Service Module Features Four-Port Unchannelized Frame Service Module forMGX-FRSM-2CT3 Features MGX-FRSM-2T3E3 FeaturesMGX-FRSM-HS2/B Features MGX-FRSM-HS1/B FeaturesEight-Port Frsm Features Description of Connection Types on the Frsm Frame Relay-to-ATM Network InterworkingCongestion Indication for NIW Connections Frame Relay-to-ATM Service Interworking PVC Status ManagementCell Loss Priority Congestion Indication Command and Response Mapping Frame ForwardingATM/Frame-to-User Network Interface Translation and Transparent ModesConfiguring Frame Relay Service Configuring the Frsm Cards, Lines, and PortsCnfln linenum linetype linerate Addport portnum linenum porttype Addport portnum linenum ds0speed beginslot numslot porttypeAddport portnum porttype Cnfport portnum lmisig asyn elmi T391 T392 N391 N392 N393Configuring Frame Relay Service Adding a Frame Relay Connection Addred redPrimarySlotNum redSecondarySlotNum redTypeConfiguring Frame Relay Service Cnfchanmap channum chanType FECN/EFCI DE to CLP CLP to DE =NIWTest Commands for the FRSMs Establishing the BPX 8600-to-BPX 8600-Series SegmentBit Error Rate Testing on an Unchannelized T3 or E3 Frsm Circuit Emulation Service Module for T3 and E3 FeaturesCell Delay Treatment Configuring Service on a T3 or E3 Cesm Error and Alarm ResponseConfiguring the Card, Lines, and Ports Adding and Modifying ConnectionsAddcon portnum mastership remoteConnId Cnfcon portnum Cdvt CellLossIntegPeriod bufsizeBit Error Rate Testing on a T3 or E3 Cesm Eight-Port Circuit Emulation Service Modules Structured Data TransferUnstructured Data Transfer Cell Delay Treatment Error and Alarm ResponseRedundancy Support for the Eight-Port Cesm Configuring Service on an Eight-Port Cesm Cnfln linenum linecode linelen clksrc E1-signalingConfiguring Bulk Distribution and Redundancy Addport portnum linenum beginslot numslot porttypeAdding and Modifying Connections Eight-Port Circuit Emulation Service Modules Service Resource Module Configuring Card and Line ParametersBulk Distribution for T1 Service Redundancy Support by the MGX-SRM-3T3/BConfiguring Redundancy Through the Redundancy Bus To specify 11 redundancy. Enter a 2 to specify 1 NRedundancy . Only an SRM can support 1 N redundancy Bit Error Rate Testing Through an MGX-SRM-3T3 Configuring Redundancy Through the Distribution BusCard pair. Permissible slot numbers are in the range 11-14, 17-22,Bit Error Rate Testing Through an MGX-SRM-3T3 Pattern Test for AX-FRSM-8E1 and MGX-CESM-8E1 Pattern Test Options In-band/ESFLoopback Test Options

MGX-FRSM-HS2, MGX-FRSM-2T3E3, MGX-FRSM-2CT3 specifications

Cisco Systems is a leader in networking technology and infrastructure, providing solutions that drive innovation and efficiency for businesses worldwide. Among its diverse range of products, the MGX series stands out as a pivotal component for the network-centric era, especially with models like MGX-FRSM-2CT3, MGX-FRSM-2T3E3, and MGX-FRSM-HS2. These modules are primarily designed for the MGX 8800 series routers, facilitating efficient traffic management and service delivery.

The MGX-FRSM-2CT3 is a versatile module that supports two T3 connections. It allows network operators to seamlessly integrate high-capacity circuit-switched and packet-switched data on a unified platform. This versatility is crucial for service providers looking to enhance their bandwidth offerings while ensuring reliable performance across voice, video, and data applications.

In contrast, the MGX-FRSM-2T3E3 module caters to operators needing E3 support. This feature allows for efficient data transport over a broader bandwidth, catering to European standards. The E3 configuration is vital for service providers operating in Europe or regions that utilize E3 technology prominently.

The MGX-FRSM-HS2 module is another significant offering, designed to accommodate the increasing demand for high speed and high capacity. It supports higher-order TDM and packet technologies, enabling operators to implement advanced services such as VoIP, video conferencing, and other data-intensive applications. This module provides scalability and reliability, making it ideal for next-generation networks.

All three modules leverage Cisco’s advanced switching and routing technology, ensuring optimal performance and minimal latency. The integration of Quality of Service (QoS) features allows network administrators to prioritize traffic types effectively, ensuring mission-critical applications receive the necessary bandwidth.

Additionally, these MGX modules support various signaling protocols, enabling interoperability with existing network infrastructure while also facilitating the migration to newer technologies. They play an essential role in modernizing telecom networks, allowing service providers to adapt to changing market demands and technology landscapes.

In summary, the Cisco MGX-FRSM-2CT3, MGX-FRSM-2T3E3, and MGX-FRSM-HS2 modules are key components for businesses looking to enhance their networking capabilities. With their robust support for T3 and E3 technologies, high scalability, and advanced QoS features, these modules empower service providers to deliver a wide range of services, drive innovation, and meet the growing demands of users in an increasingly connected world.
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