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WS-X4920-GB-RJ45, Cisco Catalyst 4900M 20-port 10/100/1000 RJ-45 half card.
The Cisco® Catalyst® 4900M Series (Figure 1) is designed for data center network top of rack switching and midmarket collapsed core/distirbution. Optimized for ultimate deployment flexibility for the data center, the Cisco Catalyst 4900M can be deployed for 10/100/1000 server access with 1:1 uplink-to-downlink oversubscription and a mix of 10/100/1000 and 10 Gigabit Ethernet servers or all 10 Gigabit Ethernet server environments. The Cisco Catalyst 4900M is a 320-Gbps, 250 million packets per second (mpps), two-rack-unit (2RU) fixed-configuration switch with 8 fixed wire-speed X2 ports on the base unit and 2 optional half-card slots for deployment flexibility and investment protection. Low latency, scalable buffer memory, and high availability with 1+1 hot swappable AC or DC power supplies and a field replaceable fan tray optimize the Cisco Catalyst 4900M for any size of data center.
The Cisco Catalyst 4900M half cards provide a wide variety of combinations of Gigabit Ethernet and 10 Gigabit Ethernet media types. The base unit can accommodate up to two of following half cards in any combination.
Performance Specification
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320-Gbps switching fabric
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Layer 2 hardware forwarding at 250 mpps
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Layer 3 hardware-based IP Cisco Express Forwarding routing at 250 mpps
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Layer 4 TCP and User Datagram Protocol (UDP) hardware-based filtering at 250 mpps
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Software-based learning at a sustained rate of 10,000 hosts per second
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55,000 unicast MAC addresses
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16,000 multicast MAC addresses
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200,000 entries in routing table (shared between unicast and multicast)
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4000 virtual ports (VLAN port instances)
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Bandwidth aggregation up to 16 Gbps through Cisco Gigabit EtherChannel technology.
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Bandwidth aggregation up to 160 Gbps for 10 Gigabit Ethernet through 10 Gigabit EtherChannel technology
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Hardware-based multicast management
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Hardware-based ACLs
Get a Data Sheet: WS-X4920-GB-RJ45
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