Chapter 1 Product Overview
Switch Components
•512-MB SDRAM (fixed)
•128-MB embedded Flash memory
•360-Gbps switching capacity, 250 million packets-per-second actual forwarding rate
•EtherChannel at 10/100/1000 Mbps, as well as 10 Gbps
•Host and device USB 2.0 ports
•Compact flash memory slot
Switch Components
This section describes the Catalyst 4900M hardware components.
Traffic Ports
There are eight 10-Gigabit Ethernet uplink ports using X2 interfaces and other traffic ports depending on the switching modules installed.
TwinGig Modules
On the WS-4908-10GE modules only, TwinGig converter modules may be used in place of X2 modules if you need to provide 1 GB SFP connections. When you insert the TwinGig into one port, its neighbor automatically converts to 1 GE interfaces whether it has a TwinGig installed or not, so you need to group your TwinGigs next to one another. The neighboring port to a TwinGig port cannot support an X2.
Installation documentation for Cisco TwinGig converter modules can be found at:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3750e_3560e/hardware/i nstall/notes/1757202.html
| | Cisco Catalyst 4900M Switch Installation Guide | | |
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| 78-18350-01 | | | 1-7 |
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