Cisco 4948 - Manual (Page 2)

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KEY FEATURES AND BENEFITS
Wire-Speed Performance in All Directions
The Cisco Catalyst 4948-10GE delivers wire-speed throughput with low latency for data-intensive applications using a 136-Gbps switching fabric
with a 102 million packets per second (mpps) forwarding rate in hardware for Layer 2–4 traffic. High-performance switching is maintained
regardless of the number of route entries or Layer 3 and 4 services enabled. Hardware-based Cisco Express Forwarding routing architecture allows
for increased scalability and performance. X2 10 Gigabit Ethernet optics provide 20 Gigabit Ethernet wire-speed uplinks for maximum throughput
of traffic.
Power-Supply Redundancy for Nonstop Operation
The Cisco Catalyst 4948-10GE provides reliability for critical applications with 1+1 redundant, hot-swappable internal AC or DC power supplies.
The 1+1 power-supply design provides A-to-B failover when power supplies are connected to different circuits. AC and DC power supplies can be
mixed in the same unit for maximum deployment flexibility. The Cisco Catalyst 4948-10GE also has a hot-swappable fan tray with four redundant
fans for additional serviceability and availability.
Robust Network Security
Multiple server communities can be securely established on a single Cisco Catalyst 4948-10GE. The switch can isolate different Layer 2 community
traffic simultaneously, while conserving IP address space. In an unlikely event that a server is compromised, the Cisco Catalyst 4948-10GE can
prevent man-in-the-middle and IP-spoofing attacks to the rest of community with no change to the server configuration. Such attacks can be logged
by the Cisco Catalyst 4948-10GE for auditing.
The Cisco Catalyst 4948-10GE offers a rich blend of network-traffic security capabilities. Security policies can be easily defined with access control
lists (ACLs). All ACL lookups are done in hardware, so wire-speed forwarding and routing performance are not affected when enabling ACL-based
wire-rate security in the network. The Cisco Catalyst 4948-10GE also supports Secure Shell (SSH) Protocol Version 1 and 2 and Simple Network
Management Protocol Version 3 (SNMPv3) for secure remote access and network management.
Comprehensive Management
The Cisco Catalyst 4948-10GE includes a single, dedicated 10/100 console port and a single, dedicated 10/100 management port for offline disaster
recovery. Remote in-band management is available with SNMP, Telnet client, BOOTP, and Trivial File Transfer Protocol (TFTP). Support for local
or remote out-of-band management is delivered through a terminal or modem attached to the console interface. The management port helps enable
the Cisco Catalyst 4948-10GE to reload a new image from a TFTP server within seconds.
The Cisco Catalyst 4948-10GE delivers a comprehensive set of management tools to provide the visibility and control required for server switching.
Managed with CiscoWorks solutions and embedded CiscoWorks CiscoView, the Cisco Catalyst 4948-10GE can be configured and managed to
deliver device, VLAN, traffic, and policy management. These Web-based management tools offer numerous services, including software deployment
and quick isolation of error conditions.