Cisco Systems OL-7396-01 Manual De Usuario
1-5
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 1
Product Overview
Summary of Software Features
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Full-width ATM router modules
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Full-width 8-port Gigabit Ethernet interface modules
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Full-width 1-port Gigabit Ethernet interface modules
Summary of Software Features
The following sections provide a brief overview of the software features of the Layer 3 enabled ATM
switch router, including the following features:
switch router, including the following features:
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System Availability (Catalyst 8540 MSR)
The Catalyst 8540 MSR provides Enhanced High System Availability (EHSA) during hardware and
software upgrades as well as fault resistance with the following features:
software upgrades as well as fault resistance with the following features:
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Dual power supplies
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Dual route processors
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Switching fabric with optional spare switch processor
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Optional dual network clock modules
In the event one of the route processors becomes unavailable due to failure or for software upgrade, the
secondary route processor takes over with zero boot time. To support switching fabric availability, an
optional third switch processor, running in standby mode, takes over if one of the other switch processor
cards fails. Finally, the optional network clock modules are able to retain clock configuration should one
of the modules fail.
secondary route processor takes over with zero boot time. To support switching fabric availability, an
optional third switch processor, running in standby mode, takes over if one of the other switch processor
cards fails. Finally, the optional network clock modules are able to retain clock configuration should one
of the modules fail.