Processor Switching Module; Chapter 2 Module And Service Description; Pxm1 Features; Pxm1 Illustration And Led Description - Cisco MGX 8230 Installation And Configuration Manual

Processor Switching Module

PXM1 Features

The PXM1
card. This module combines a 1.2 Gbps shared-memory switching fabric with integrated trunking at
speeds up to OC-12. The switching fabric provides 1.2 Gbps of non-blocking switching capacity, while
the processor provides the control plane that delivers IP+ATM networking software, diagnostics, and
performance monitoring.
The PXM provides integrated switching, processing, and broadband interfaces to provide the following
high-performance switching and trunking features:
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PXM1 Illustration and LED Description

PXM1 provides connectors for external audio and visual alarms. The interface can either be always open
or always closed. Major and minor alarms are controlled separately. An alarm cutoff button is accessible
from the front. A history LED is set when the alarm cutoff button is pressed. The history LED can be
cleared by pressing the history clear button on the faceplate.
The PXM1 provides the following indicators:
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Cisco MGX 8230 Edge Concentrator Installation and Configuration
2-2
(Figure 2-1) is a combination ATM switching fabric, data processing, and ATM interface
1.2-Gbps non-blocking switching
Integrated T3/E3, OC-3c/STM-1, OC-12c/STM-16
ATM trunking
Linear Automatic Protection Switching for the SONET interfaces. Note that APS is available for
only the "B" models of the OC-3 and OC-12 uplink cards.
Hot card insertion/removal
1:1 hot standby redundancy
User-selectable primary and secondary clock sources with graceful switchover
Internal Stratum-4 or optional Stratum-3, external BITS, or inband clock sources
Inband management or out-of-band via EIA/TIA-232 or 10BaseT control ports
Narrowband service modules
Broadband trunking support
DSO to OC-12c/STM-4 interfaces supported
System Status Active/Standby/Fail/standby update (green/yellow/red/flashing yellow)
Critical alarm (blue)
Major alarm (red)
Minor alarm (yellow)
DC OK A (green = OK, red = not OK)
DC OK B (green = OK, red = not OK)
ACO (green)
History (green)
Port activity (active and clear = green, remote alarm = yellow, local alarm = red)
LAN activity (flashing green)
Chapter 2 Module and Service Descriptions
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001