The Cisco Catalyst 4948 is a wire-speed, low-latency, Layer 2-4, 1-rack-unit (1 RU) fixed-configuration switch for rack-optimized server switching. Based on the proven Cisco Catalyst 4500 Series hardware & software architecture, the Cisco Catalyst 4948 Series offers exceptional performance & reliability for low density, multilayer aggregation of high performance servers & workstations. The Cisco Catalyst 4948 offers 48 ports of wire-speed 10/100/1000BASE-T with 4 alternative wired ports that can accommodate optional 1000BASE-X Small Form-Factor Pluggable (SFP) optics. Exceptional reliability & serviceability are delivered with optional internal AC or DC 1 + 1 hot-swappable power supplies & a hot-swappable fan tray with redundant fans. Please note: networking components such as switches, routers & wireless devices require that speeds & standards be consistent throughout the network to gain optimum performance. To avoid compatibility clashes or for advice, please contact us on solutions@ebuyer.com. ...

10 Gigabit Ethernet Switching for High-Performance, Rack-Optimized Server Switching Cisco Systems announces the Cisco Catalyst 4948-10GE, a low-latency, 48-port 10/100/1000, 1-rack unit (RU), fixed-configuration switch with 2 wire-speed 10 Gigabit Ethernet uplinks for rack-optimized server switching applications. The Cisco Catalyst 4948-10GE (Figure 1) offers exceptional performance & reliability for Layer 2 & Layer 3 server switching deployments for enterprise customers. The Cisco Catalyst 4948-10GE can be ordered immediately with first customer shipment (FCS) expected on March 8, 2005. Normal new product lead time (four weeks) will apply initially. Primary hardware features include: • Wire-speed performance for 10/100/1000 connectivity & wire-speed 10 Gigabit Ethernet uplinks –136-Gbps switching fabric with 102-Mpps forwarding rate for Layer 2 through 4 • Power-supply redundancy for nonstop operation –1+1 redundant hot-swappable internal AC or DC power supplies • Robust Security – Prevention of man-in-the-middle & IP-spoofing attacks – Access control lists (ACL) – Secure Shell (SSH) Protocol versions 1 & 2 – Simple Network Management Protocol Version 3 (SNMPv 3) for secure remote access & network management • Comprehensive management – Dedicated 10/100 console port & dedicated 10/100 management port – Remote in-band management through SNMP ...

The Cisco Catalyst 4948E Ethernet Switch is built from the start to deliver class-leading, full-featured server-access switching. The switch offers forty-eight 10/100/1000 Gbps RJ45 downlink ports & four 1/10 Gigabit Ethernet uplink ports & is designed to simplify data center architecture & operations by offering service provider-grade hardware & software in a one Rack Unit (1RU) form factor optimized for full-featured Top-of-Rack (To R) data center deployments. The Cisco Catalyst 4948E, with its advanced multicast support, is optimized for multimedia applications. It supports Protocol Independent Multicast (PIM), Source-Specific Multicast (SSM), & Pragmatic General Multicast (PGM), providing end users with additional scalability to support multimedia applications. Also supported are Internet Group Management Protocol (IGMP) snooping & Multicast Listener Discovery (MLD) snooping in hardware, enhancing performance & reducing network traffic by allowing a switch to dynamically add & remove hosts from a multicast group. The Cisco Catalyst 4948E offers superior per-port Qo S features to help ensure that network traffic is classified, prioritized, & scheduled optimally to efficiently manage bandwidth-intensive multimedia & time-sensitive & mission-critical applications. The Cisco Catalyst 4948E can classify, monitor, & mark incoming packets, allowing the administrator to differentiate traffic flows & enforce policies. Sharing, shaping, & strict-priority configurations determine scheduling of egress traffic. ...

The Cisco Catalyst 4948E Ethernet Switch is built from the start to deliver class-leading, full-featured server-access switching. The switch offers forty-eight 10/100/1000 Gbps RJ45 downlink ports & four 1/10 Gigabit Ethernet uplink ports & is designed to simplify data center architecture & operations by offering service provider-grade hardware & software in a one Rack Unit (1RU) form factor optimized for full-featured Top-of-Rack (To R) data center deployments. The Cisco Catalyst 4948E, with its advanced multicast support, is optimized for multimedia applications. It supports Protocol Independent Multicast (PIM), Source-Specific Multicast (SSM), & Pragmatic General Multicast (PGM), providing end users with additional scalability to support multimedia applications. Also supported are Internet Group Management Protocol (IGMP) snooping & Multicast Listener Discovery (MLD) snooping in hardware, enhancing performance & reducing network traffic by allowing a switch to dynamically add & remove hosts from a multicast group. The Cisco Catalyst 4948E offers superior per-port Qo S features to help ensure that network traffic is classified, prioritized, & scheduled optimally to efficiently manage bandwidth-intensive multimedia & time-sensitive & mission-critical applications. The Cisco Catalyst 4948E can classify, monitor, & mark incoming packets, allowing the administrator to differentiate traffic flows & enforce policies. Sharing, shaping, & strict-priority configurations determine scheduling of egress traffic. ...

Cisco is the worldwide leader in networking for the Internet. Ciscos Internet Protocol-based (IP) networking solutions are the foundation of the Internet & most corporate, education, & government networks around the world. Cisco provides the broadest line of solutions for transporting data, voice & video within buildings, across campuses, or around the world. Today, the Internet & computer networking are an essential part of business, learning & personal communications & entertainment. Virtually all messages or transactions passing over the Internet are carried quickly & securely through Cisco equipment. Cisco solutions ensure that networks both public & private operate with maximum performance, security, & flexibility. ...

Cisco Catalyst 6500 48-Port 10/100/1000 Classic Interface Module with Power over Ethernet (Po E) option now supports jumbo frames & enhanced Qo S capabilities (deeper & more per-port queues). Continues to support time-domain-reflectometer (TDR) for rapid cable fault detection. ...

Cisco Catalyst 6500 48-Port 10/100/1000 Classic Interface Module with Power over Ethernet (Po E) option now supports jumbo frames & enhanced Qo S capabilities (deeper & more per-port queues). Continues to support time-domain-reflectometer (TDR) for rapid cable fault detection. ...

Designed to complement the many roles that the Cisco Catalyst 6500 Series plays in a network, Cisco Catalyst 6500 Series mixed media Gigabit Ethernet modules offer the broadest selection of media, densities, performance, interoperability, & chassis deployments for enterprises & service providers. These modules are ideal for gigabit Ethernet over fiber to the desktop, gigabit uplinks, aggregation of high-density 10/100 interfaces, Metro Ethernet, backbone & high-speed server farm or data center connections as well as mixed media environments supporting both fiber & copper cable connections. ...

The Firewall Services Module (FWSM) is an integrated security module for Cisco Catalyst 6500 Series switches & 7600 Series routers that provides stateful Layer 7 filtering capabilities. The Self-Defending Network is Cisco Systems long-term strategy to allow organizations to identify, prevent, & adapt to threats using security that is integrated into all aspects of their connected business processes-incorporating secure connectivity, threat defense, & trust & identity technologies. The FWSM is a critical element of the Cisco Threat Defense System
- its unique integration of robust security services with network intelligence offers scalable, resilient protection from threats. Investment protection is the primary metric by which all next-generation switches are judged. No longer are CEOs & CIOs seeking to perform wholesale equipment replacements for performance upgrades within their networks. Equipment vendors will be required to perform upgrades to equipment by simply changing switch fabrics & adding additional higher-performance line modules. The FWSM helps to preserve a companys existing investment in Cisco Catalyst switches by adding to the existing devices, rather than rebuilding the entire network for security purposes. Network virtualization blends the economics & efficiencies of shared systems with the integrity, performance, & security of independent systems. The virtualized FWSM delivers multiple firewalls on one physical hardware platform. Network administrators can configure, deploy, & manage these firewalls as if they were separate devices. They can also partition & manage resources independently, & allocate different quantities to specific applications. Network virtualization technology allows corporations to not only increase network resource usage & exert more control over resources & their allocation, but also to gain flexibility & speed in scaling the resources. Using virtualization to reduce the number of physical devices in a network significantly reduces the cost & complexity of managing a network infrastructure.
...

The Cisco Catalyst 6500 Series Distributed Forwarding Card 3 (DFC3), is an optional daughter card for CEF720-based line cards. The DFC3 series provides localized forwarding decisions for each line card & scales the aggregate system performance to reach up to 400 mpps. The new DFC3B card offers enhancements to support Multiprotocol Label Switching (MPLS) & Access Control Entries (ACE) counters on the Cisco 6700 Series line cards. ...