Chapter 1 Product Overview
Catalyst 4900M Switch Software Features
1-6
Cisco Catalyst 4900M Switch Installation Guide
78-18350-01
Note When using TwinGig and X2 transceivers on this module, keep them grouped in
pairs as follows: 1-2, 3-4, 5-6, 7-8. Inserting a TwinGig or X2 transciever in any
port will affect the capabilities of its partner port, and both will be set to handle
the same type automatically. Mixing within a port group will not work. As an
example, you would not be able to have an X2 in port 1 and a TwinGig in port 2
and expect both of them to function.
The Catalyst 4900M switch has a 320-Gbps, nonblocking, full-duplex switching
fabric, providing 250 million packets-per-second of switching capacity for
high-speed applications. The Catalyst
4900M chassis has eight 10 Gigabit
Ethernet ports and other ports as configured.
A removable automatic variable speed fan tray for low-noise operation at room
temperature and removable and redundant 1000
W AC or 1000 W DC power
supplies provide fault-tolerance protection for the switch. See the
“Connecting
Power to the Catalyst 4900M Switch” section on page 3-11.
Catalyst 4900M Switch Software Features
For up-to-date information on software features, refer to the release notes and
software configuration guide for your software release.
Hardware System Features
The Catalyst 4900M switch is a high-performance dedicated Ethernet switch that
fully integrates into the Catalyst family of switches using Catalyst 4500 series
system software.
The following is an overview of the Catalyst 4900M hardware features:
• Eight 10 Gigabit Ethernet uplink ports using X2 interfaces
• Serial console management port using an RJ-45 interface
• A removable automatic variable speed fan tray for low-noise operation at
room temperature
• Redundant and removable 1000 W AC or DC power supplies
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