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Cisco Catalyst 4948E and 4948E-F Ethernet Switches

The Cisco Catalyst 4948E and Cisco 4948E-F Ethernet Switches are the Cisco Catalyst 4900 Series details middle switches created from the start to produce very best-in-class, full-showcased server-entry changing. The switches integrate identical features besides that the Cisco Catalyst 4948E provides front-to-again cooling, and also the Cisco Catalyst 4948E-F offers back-to-entrance cooling. Each individual simple switch provides forty-eight 10/100/1000-Gbps RJ45 downlink ports and 4 1 and 10 Gigabit Ethernet uplink ports. The switches are designed to simplify data center architecture and functions by supplying services supplier-quality hardware and computer software inside of a an individual-rack-unit (1RU) kind ingredient optimized for complete-highlighted best-of-rack (ToR) facts center deployments.

The Cisco Catalyst 4948E and 4948E-F make on the innovative technology with the Cisco Catalyst 4948 Switches, by considerably the most broadly deployed ToR switch within the business, with about 10 million ports deployed around the world. The Cisco Catalyst 4948E and 4948E-F ambigu the uplink bandwidth and give exact front-to-back again and back again-to-entrance airflow with no facet or leading venting. The airflow direction is managed by the altering of lovers. Optional front-to-back again and again-to-front airflow conduite decreases information middle working costs by supplying rigid sizzling-aisle and cool-aisle isolation.
Scorching-aisle and cold-aisle deployment stays the broadly adopted most successful apply for info heart cabinet layouts these times. Networking switches and computing servers mounted inside of a one cabinet will need to sustain the separation from the inlet chilly air in addition the exhaust warm air for productive use of cooling assets. The Cisco Catalyst 4948E and 4948E-F switches present the option of entrance-to-again airflow (Cisco Catalyst 4948E) and back-to-entrance airflow (Cisco Catalyst 4948E-F) for ToR switch deployments.

Scalability and Performance
• Nonblocking server-to-server web-site visitors with 176-Gbps aggregate throughput
• Simplicity of migration from Gigabit Ethernet to ten Gigabit Ethernet upstream with help for SFP and SFP+ optics
• Significant buffers optimized to deal with microbursts with 17.5 MB of centralized buffering, aiding make sure that small business-significant packets usually are not missing due to inadequate buffering
• Lively queue conduite by usually means of dynamic buffer limiting for TCP throughput optimizations
• Expense protection by information heart model with dual-stack IP Versions four and six (IPv4 and v6) aid
• State-of-the-art prime excellent of assistance (QoS) with eight configurable queues for every single port
• Data middle server virtualization assist for greater Layer two domains with scalable MAC addresses
• Assist for a extensive selection of optics connecting for the aggregation layer
• Entrance-to-back and again-to-entrance airflow opportunities
Enhanced Manageability
• Fork out as you increase with program function offers, from Layer two only (LAN Base) to finish Layer about three functionality (Company Solutions)
• Lowered running expenditures (OpEx) with instruments like AutoInstall and Cisco IOS® Embedded Event Supervisor (EEM) that allow quick availability
• Facts middle automation with IP company-amount arrangement (SLA) and Clever Contact Residence
• Info middle optimization with precise entrance-to-back and back-to-front airflow, together with strength supply cooling
• Enhanced software visibility with intelligent circulation logging
• Enhanced manageability via 8 bidirectional Switched Port Analyzer (SPAN) and Remote SPAN (RSPAN) sessions
• Network visibility by means of Cisco® NetFlow-Lite (future aid)
• one+one AC or DC electrical power provides and very hot-swappable lover tray with redundant fans for high availability for mission-significant programs
• Optimized forwarding throughout all four uplinks with equal-amount multipath (ECMP) load sharing
• Enhanced resiliency with protection from assaults with accessibility manage lists (ACLs), Control Airplane Policing (CoPP), Address Resolution Protocol (ARP) examination, and Dynamic Host Configuration Protocol (DHCP) snooping
• Lively queue management employing dynamic buffer restricting (DBL) for increased protection and network command

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