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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
Chapter1 Introducing the MGX 8230
Summary of MGX 8230 Cards and Modules
Redundancy for Service Modules
Service modules can have either 1:1 redundancy or 1:N redundancy.
Refer to the CiscoView user docume ntation for instructions o n u s in g th e C iscoView application to
configure redundancy.

1:1 Redundancy

For 1:1 redundancy, place the card sets in adjacent slots and connect th e appropriate Y-cable to the paired
ports on the active and standby cards. A ppl ica ble service modules are:
•MGX-FRSM-2CT3
•MGX-FRSM-2T3E3
•MGX-FRSM-HS2

Hot Standby

For hot standby, place the card sets in th e sa me shelf and connect the appro p ri at e Y-cable to the p a i re d
ports on the active and hot standby cards. The hot standby card will automati cally configure itse lf to
match the configuration of the primary card. This process may take up to eight minutes. After the
configuration transfer process is com p let ed , th e t ra nsf er fro m t he primary to the hot standby card takes
less that one second regardless of the number of connections. Any subsequent changes to the primary
card are automatically transfe rred t o the hot standby card configuratio n so th e two cards maintain the
same configuration. Refer to th e “Redundancy for Service Modules” section on page1-16 for
instructions for setting up a redundant pair.
Applicable service modules are :
•MGX-FRSM-2CT3
•MGX-FRSM-2T3E3
•MGX-FRSM-HS2
To determine the hot stand by s tat us of the system, use t he command dsphotstandby.

1:N Redundancy

For 1:N redundancy, an MGX Service Resource Modul e-3T3 (MGX-SRM-3T3/C) card set i s necessary.
This card set supports 1:N redundancy for the following service modules:
•MGX-AUSM-8T1/B
•MGX-AUSM-8E1/B
•AX-FRSM-8T1
•AX-FRSM-8E1
•AX-CESM-8T1
•AX-CESM-8E1
•MGX-VISM-8T1
•MGX-VISM-8E1