Customers can mix and match Gigabit Ethernet and10 Gigabit Ethernet copper and fiber ports in a single 2RU switch. The Cisco Catalyst 4900M delivers extremely low latency for all packet sizes, deep buffers, and Layer 2 and 3 switching features for flexible deployments for data center server access,market data architecture, and web services experience providers. The media type flexibility and Layer 3 feature set make the Cisco Catalyst 4900M an ideal switch for compact core/distribution deployment as well.

Product Overview of The Cisco Catalyst 4900 :

• Provides optional half-cards that can be changed when new servers require different media and port speeds, maintaining the investment in the Cisco Catalyst4900M base unit

• Supports Gigabit Ethernet and 10 Gigabit Ethernet copper (RJ-45) and 10 GigabitEthernet fiber (X2) line cards that can be converted to Gigabit Ethernet fiber (SmallForm-Factor Pluggable [SFP]) by using a port adaptor; X2 ports can be convertedfor use with 10 Gigabit Ethernet SFP+ and CX1 with the OneX adapter

• Supports Layer 2 and 3 software images for deployment flexibility

• Designed with 16 MB of shared buffers to help prevent performance degradationunder heavy traffic loads and help ensure that revenue-producing packets are notlost due to insufficient buffering