Cisco Catalyst 4900M Switch

Cisco Catalyst 4900M Switch

-Cisco Catalyst 4900M Switch provides an ideal solution for space constrained deployments.That require high performance wire speed services, high availability, and the modular flexibility of deploying Gigabit Ethernet and 10 Gigabit Ethernet.All in a small 2RU form factor.

Data Center switch

  • High performance
  • Low latency
  • 10/100/1000 Ethernet
  • 10 Gigabit Ethernet
  • A top-of-rack access layer switching solution for rack-optimized servers

Part of the branch switching portfolio, the 4900M provides wire-speed services required for a collapsed LAN, core-distribution deployment.

Catalyst 4900M offers eight fixed wire-speed 10 Gigabit Ethernet ports, and two half-slots which you can fill with any combination of the following:

  • 20-port wire-speed 10/100/1000 (RJ-45) half-card
  • 8-port (2:1) 10 Gigabit Ethernet (X2) half-card (Cisco TwinGig Converter Module compatible)
  • 4-port wire-speed 10 Gigabit Ethernet (X2) half-card
  • 8-port (2:1) 10GBASE-T half-card



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Cisco Catalyst 4900M Switch


-For the midmarket collapsed core and aggregation layer are in the branch office and the Cisco Catalyst 4900M provides an ideal solution for space-constrained deployments. That require high-performance wire-speed services are also high availability and with the unique semifixed architecture.The  support of the Cisco Converter Module too.

-Collapsed core is used and aggregation layer LAN deployment.Providing the flexibility to deploy Gigabit Ethernet now and cost-effectively migrate to 10 Gigabit Ethernet as requirements change.

Cisco Catalyst 4900M Switch

-Configuration provides wire-speed connection buffers to handle bursty traffic, and a comprehensive set of Layer 3 features required at the collapsed core and aggregation layer of the network. It also supports a suite of ease-of-management features to simplify operations.

The design of the Cisco Catalyst 4900M Switch offers these benefits

• Offers heat-exchange flexibility because it provides high availability in dynamic environments along with investment protection in a mix of servers.
• Provides optional half-cards that can be changed when new servers require different media and port speeds, while saving investment in it is base unit.
• Supports Gigabit Ethernet and 10 Gigabit Ethernet copper also 10 Gigabit Ethernet fiber card. They can be converted to Gigabit Ethernet fiber due to the use of a port adapter and X2 ports can be converted for use with 10 Gigabit Ethernet SFP + and CX1 with the adapter.
• Layer 2 and 3 supports software images for deployment flexibility.
• Designed with 16 MB shared buffer to prevent performance degradation under heavy traffic loads. To ensure revenue-generating packages are not lost due to insufficient buffer.

The switch 8 fixed wire-speed 10 Gigabit Ethernet

-Ports typically used to uplink to an aggregation switch .The switch also provides two half-slots that can be filled with combination of the following:

• 20-port wire-speed 10/100/1000 (RJ-45) half-card
• 4-port wire-speed 10 Gigabit Ethernet (X2) half-card

Infrastructure Simplification and Flexibility
• Provides flexible 10 Gigabit Ethernet configurations ranging from 8 to 24 ports
• Offers more than nine combinations of media types, including Gigabit Ethernet copper and fiber interfaces and 10 Gigabit Ethernet copper and fiber interfaces
• Delivers investment protection with a 10GBASE-T line card that offers Gigabit Ethernet and 10 Gigabit Ethernet modes
Performance and Scalability
• Offers wire-speed Layer 2+ Ethernet switching with 320 Gbps and 250 million packets per second (mpps) of aggregate capacity in 2RU
• Eliminates access port–to–uplink port oversubscription bottlenecks with up to 40 ports of wire-speed 10/100/1000 Ethernet at the access to 8 wire-speed 10 Gigabit Ethernet uplinks
• Achieves a latency of less than 5 microseconds with 64-byte packets
• Provides Cisco TwinGig Converter Module support on the 8-port X2 half-cards, allowing up to 32 Gbps over fiber optics per switch
• Allows control of transmit queue sizing; default size of transmission queue is 8000 packets (irrespective of packet size), and this can be configured into up to eight queues with different sizes and graded priorities
Continuous Operation
• Provides online hot addition and deletion of half-cards for in-service hardware upgrades
• Provides 1+1 AC or DC power supplies and hot-swappable fan tray with redundant fans for high availability for mission-critical applications

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