Cisco Systems 15530 CPU Switch Modules

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Cisco ONS 15530 Configuration Guide and Command Reference

78-14227-01, Cisco IOS Release 12.1(10)EV2

Chapter1 Product Overview

CiscoONS 1553 0 Hardware Features

The WB-VOA modules accept and attenuate an ITU signal regardle ss of the ch annels in the sign al. This

includes signals with a single channel, a band of channels, or multiple bands of channels. There are two

types of WB-VOA modules: single and dual. The single WB-VOA module attenuates only one signal

and the dual WB-VOA module attenuates up to two signals.

CPU Switch Modules

The Cisco ONS 15530 includes one CPU switch module with a switch fabric. There m ay be two CPU

switch modules in a CiscoONS 15530 shelf to provide a higher level of system availability. One of the

CPU switch modules is the active one (sometimes called primary or master) and the other is the standby

(sometimes called secondary, backup, o r sla ve). The stan dby CPU switch module is present f or incr eased

reliability so that it can take over in case the active CPU switch module fails.

Each CPU switch module has a number of subsystems, including a p roce ssor, a switch fa bric , a cl o ck

subsystem, an Ethernet switch for communication between processors and with the LRC (l ine card

redundancy controller) on the OADM modules and line cards, and an SRC (s witc hcar d r edund an cy

controller). The active processor controls the system. All LRCs in the system use the system clock and

synchronization signals from the active CPU switch module. Interfaces on the CPU sw itch mo dule s

permit access by 10/100 Ethernet, console terminal, or modem connections.

The key features of the Cisco ONS 15530 CPU switch module are:

•32 by 32 port non-blocking crosspoint switch fabric with up to 3.125 Gbps per p ort

•RM7000 64-bit RISC processor with internal cache

•Galileo GT96100 support chip

•Flash SIMM in a socket for up to 32 MB with a default of 16MB

•Bootflash PROM for up to 512KB

•NVRAM for up to 512KB with time of day clock

•Console and auxiliary serial port with RS-232C interface

•10/100 MB NME (network management Ethernet) port

•CompactFlash card slot

•System clocking source

•Support for two CPU switch modules

•Operates from 12 V DC from the backplane with on-card generation of 5, 3.3, 2.5 and 1.8 V DC

•Environmental and system monitoring and control

•9-port Fast Ethernet Switch for communication to line cards

•SRC (switch redundancy controller) for communicating with line cards

The switch fabric, which is integrated onto the CPU switch module, is a 36 by 37 crosspoint,

nonblocking switch with only 32 by 32 ports used. Each port carries 3.125 Gbps.