Cisco MGX 8230 Specifications download pdf (Page 193)

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Cisco MGX 8230 Edge Concentrator Installation and Configuration

Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001

Chapter 6 Card and Service Configuration

Frame Service Module Features

• Hot standby with 1:1 redundancy (see sections for individual FRSM card types).

• Resource partitioning at the card level or port level.

• Bit error rate test (BERT) functions for all card types except the HSSI card types. For a description

of BERT on the MGX-FRSM-2T3E3, see the forthcoming section titled “Bit Error Rate Testing on

an Unchannelized T3 or E3 FRSM.” Running a BERT session on an MGX-FRSM-2CT3 or an

eight-port FRSM requires a set of MGX-SRM-3T3s in the system. For a description of BERT on

these cards, see the section titled “Bit Error Rate Testing Through an MGX-SRM-3T3.”

• User-selectable weighted fair queuing or fixed-rate queuing. The user can select either fixed-rate

queuing to provide highest egress port speed while reducing quality of service or weighted fair

queuing to provide maximum quality of service but slower egress port speed. This feature applies to

the FRSM-2CT3, FRSM-2T3E3, and FRSM-HS2 cards.

• Subrate support is provided for the MGX-FRSM-2T3E3 card. This feature applies to the

MGX-FRSM-2T3E3 card only when used with Digital Link equipment.

Note Subrate capability is not supported on Kentrox equipment.

• Zero CIR Service for FRSM-VHS and FRSM-8T1 and FRSM-8E1 cards

MGX-FRSM-2CT3 Features

The specific features are:

• Up to 4000 user-connections

• Two T3 lines

• Up to 256 logical ports

• Logical port speed from DS0 56 Kbps through DS1 1.536 Mbps

• Support for five Class of Service (CoS) queues (high priority, rt-VBR, nrt-VBR, ABR, UBR)

• Supports Hot Standby with less than 1 second switchover using 1:1 redundancy through Y-cable

redundancy (no Service Resource Module required)

• OAM Continuity Traffic Generation Test for use on defective PVCs

MGX-FRSM-2T3E3 Features

The specific features are:

• Up to 2000 user-connections

• Two T3 or E3 lines coinciding with two logical ports

• ADC Kentrox and Digital Link methods for supporting fractional T3 or E3 ports

• Maximum possible number of DLCIs per port by using the Q.922 two-octet header format

• Support for five Class of Service (CoS) queues (high priority, rt-VBR, nrt-VBR, ABR, UBR)

• Supports Hot Standby with less than 1 second switchover using 1:1 redundancy through Y-cable

redundancy (no Service Resource Module required)

• Fractional T3 speeds available through either the Digital Link or ADC Kentrox method

• Supports running lines at subrates when used with Digital Link equipment

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Cisco MGX 8230 Specifications Page 193