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Подробнее о Cisco Catalyst 4900M

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Производительность и масштабируемость Гибкая конструкция позволяющая перевести центр обработки данных на сети со скоростями 10Гбит/с

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Специально разработан для обеспечения лучшей буферизации, минимального времени задержки и высочайшей производительности в своем классе.

  • Обеспечивает модульную миграцию с сетей Gigabit Ethernet на сети 10 Gigabit Ethernet.
  • Возможность горячей замены обеспечивает бесперебойную работу в динамичной среде
  • Время задержки при передаче 64-байтовых пакетов менее 5 миллисекунд

Где купить

 
 
Коммутатор Cisco  Catalyst  4900M

Highlights

The Cisco® Catalyst® 4900M is a two-rack-unit (2RU) top-of-server rack Ethernet switch optimized for 10/100/1000 and 10 Gigabit Ethernet access devices. It is unique in the top-of-rack space because it is semi-fixed. This flexibility provides a simplified modular migration path from Gigabit Ethernet to 10 Gigabit Ethernet.

Fast, Reliable 10 Gbit/sec Performance

 

  • Simplified and flexible infrastructure provides 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 an investment protection path for 10GBASE-T access upgradability

Affordable 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 at the access to 8 wire-speed 10 Gigabit Ethernet uplinks
  • 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 TX queue is 8000 packets (irrespective of packet size); this can be configured into up to 8 queues with different sizes and graded priorities

Cisco SMARTnet Service for Rapid Problem Resolution

Cisco SMARTnet Service is an award-winning technical support service that offers direct, anytime access to Cisco engineers and an extensive range of technical resources. SMARTnet delivers rapid issue resolution, flexible device-by-device coverage, and premium service options to help maximize operational efficiency.

Cisco SMARTnet provides the following:

  • Around-the-clock, global access to the Cisco Technical Assistance Center (TAC)
  • Access to the extensive Cisco.com knowledgebase and tools
  • Next-business-day advance hardware replacement (premium options available for business-critical devices, such as 2-hour replacement and onsite parts replacement and installation)
  • Ongoing operating system software updates and upgrades
  • Cisco OS software support to extend the life of Cisco devices with improved security, increased performance, bandwidth management, new protocol support, and greater interoperability
  • Proactive diagnostics and real-time alerts on select devices with Smart Call Home

 

Dell ProSupport

Faster, more reliable support services designed to address the technology challenges you face today. This new support portfolio is focused on your needs, time demands and budgets.

 

Need professional support services that take care of both you and your employees’ IT needs 7x24? Choose Dell ProSupport to get access to a certified technician in two minutes or less.

Got an IT staff? Choose Dell ProSupport for IT and get tech-to-tech support with Fast-Track Dispatch, along with 7x24 access to Dell-certified technicians.

Dell ProSupport Service Model

Dell ProSupport for End Users

Designed for organizations with limited or no dedicated IT staff.
Includes:
  • 7x24 direct break-fix hardware support for your employees
  • "How-to" support on popular software applications such as Norton AntiVirus, Microsoft Office, Microsoft Small Business Server, Intuit QuickBooks, Adobe Photoshop and Adobe Acrobat.
  • Access to a certified technician in two minutes or less

Dell ProSupport for IT
Includes:

  • 7x24 Direct access to Dell Expert Centers
  • Fast-track dispatch for Dell-certified technicians
  • Escalation management through Dell's Global Command Centers

Next, add Same-Day Response for faster resolution:

Same-Day Response — Ideal for customers using their Dell systems for time-sensitive operations or critical business functions. A Dell-trained technician will arrive onsite within 4 hours after problem determination, depending on location, to help get your system back in operation as rapidly as possible.

Basic Hardware Warranty

  • One year unit exchange limited hardware warranty supplemented with one year of Next Business Day part or unit hardware replacement
  • 7-day/24-hour Telephone Technical Support for troubleshooting and diagnosis of Dell hardware

Customization and Set-Up

  • Installation – Dell provides streamlined standard installation services so you can easily choose the specific package that quickly gets new systems into the workspace and old systems out.
  • You can upgrade to three years of part or unit hardware replacement, with either Same Day, 4 Hours or Next Business Day response.

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