Eight-Port Circuit Emulation Service Modules

Step 2 Optionally, you can use cnfcon to modify an individual connection. This command requires a channel number. If you add a connection by using addcon, you do not need to specify a channel number because the system automatically uses the next available number. To obtain the channel number for cnfcon, execute dspcons.

cnfcon <port_num> <CDVT> <CLIP> <bufsize> <cbrclkmode> <isenable> <exttrigis>

•port_num is the port number.

•CDVT is a tolerable variation for the arrival time of cells. For T1, the range is 125–24000 micro seconds. For E1, the range is 125–26000 micro seconds. Both require 125-microsecond increments.

•CLIP is CellLossIntegrationPeriod, an amount of time a connection can be in an error condition before an alarm is declared. The range is 1000-65535 milli seconds.

•bufsize is the egress buffer size in bytes. These buffers are used for tolerating variations in the cell delay. The size can be automatically computed, or you can enter a specific size in bytes.

•cbrclkmode is the clock mode for a circuit emulation connection. The values are 1–3. 1 is synchronous. 2 is SRT. 3 is adaptive. SRT and adaptive are asynchronous clocking schemes.

•isenable is a flag to enable the idle code (ABCD signalling bits) based cell suppression feature on a connection. If you enable this feature, idle suppression logic is activated so that suppression begins when valid idle ABCD bits are detected. This feature is valid for only single DS0 connections. Possible values are 1 to enable and 2 to disable.

•exttrigis is an enable for an external idle suppression trigger. With this feature enabled, the logic forcefully suppresses cells on a single DS0 connection. Enter a 1 to disable idle suppression or a 2 to enable idle suppression.

Step 3 Optionally, you can configure connection parameters for the network segment of a three-segment connection:

cnfswparms <chan_num> <mastership> <vpcflag> <conn_service_type> (=cos) <route_priority> <max_cost> <restrict_trunk_type> <pcr> <mcr> <pct_util>

•chan_number is the connection in the range 32–279.

•mastership specifies the current endpoint as master or slave. 1=master. 2=slave (default)

•vpcflag indicates whether the connection is a VPC or a VCC: 1=VPC, and 2=VCC.

•conn_service_type selects the type of service for the connection: 1=cbr, 2=vbr, 3 is not used, 4=ubr, 5=atfr, 6=abrstd, and 7=abrfst.

•route_priority is the priority of the connection for re-routing. The range is 1–15 and is meaningful only in relation to the priority of other connections.

•max_cost is a number establishing the maximum cost of the connection route. The range is 1–255 and is meaningful only in relation to the cost of other connections.

•restrict_trunk_type is a number that specifies the type of trunk this connection can traverse. The numbers are 1 for no restriction, 2 for terrestrial trunk only, and 3 for satellite trunk only.

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pcr is the peak cell rate.

mcr is the minimum cell rate. The range is 1–65535 cells per second.

pct_util is the percent utilization in the range 1–100.

6-46Cisco MGX 8850 Installation and Configuration, Release 1.1.00, Part Number 78-6186-02

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Cisco Systems MGX-FRSM-HS2, MGX-FRSM-2CT3, MGX-FRSM-2T3E3 manual Eight-Port Circuit Emulation Service Modules
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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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