Cisco Catalyst 4948 48 10/100/1000 ports & 4 SFP, EMI WS-C4948-E 데이터 시트
제품 코드
WS-C4948-E
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Power Supply Redundancy for Nonstop Operation
The Cisco Catalyst 4948 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 also has a hot-swappable fan tray with four redundant fans for additional
serviceability and availability.
Robust Security
Multiple server communities can be securely established on a single Cisco Catalyst 4948. 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 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 for auditing.
The Cisco Catalyst 4948 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 also supports Secure Shell (SSH Version 1 and Version 2) protocols and Simple Network
Management Protocol Version 3 (SNMPv3) for secure remote access and network management.
Comprehensive Management
The Cisco Catalyst 4948 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 to reload a new image from a TFTP server within seconds.
The Cisco Catalyst 4948 delivers a comprehensive set of management tools to provide the visibility and control required for server switching.
Managed with CiscoWorks solutions and embedded CiscoView, the Cisco Catalyst 4948 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.
SOFTWARE CONFIGURATION OPTIONS
Table 1 gives descriptions of the software configuration options for the Cisco Catalyst 4948.
Table 1.
Descriptions of Software Configuration Options for Cisco Catalyst 4948
Software Image
Description
Standard multilayer image
Standard Layer 3 image, including Routing Information Protocol Version 1 (RIPv1), RIPv2, static routes, AppleTalk,
and Internetwork Packet Exchange (IPX) software routing
Enhanced multilayer image
Enhanced Layer 3 image, including Open Shortest Path First (OSPF), Intermediate System-to-Intermediate System
(IS-IS), and Enhanced Interior Gateway Routing Protocol (EIGRP), Border Gateway Protocol ( BGP)
TECHNICAL SPECIFICATIONS
Performance and Switching Specifications
•
96-Gbps nonblocking switch fabric
•
72-Mpps Layer 2 Forwarding (hardware)
•
72-Mpps Layer 3 and Layer 4 forwarding—IP routing, Cisco Express Forwarding-based (hardware)