Cisco Catalyst 4948 10 Gigabit Ethernet Switch

50,000.00

RS.50,000.

Product Overview

The Cisco Catalyst® 4948 10 Gigabit Ethernet Switch is a wire-speed, low-latency, Layer 2 to 4, 1-rack-unit (1RU), fixed-configuration switch for rack-optimized server switching. Based on the proven Cisco® Catalyst 4500 Series hardware and software architecture, the Cisco Catalyst 4948 10 Gigabit Ethernet Switch offers exceptional performance, bandwidth, and reliability for low-density, multilayer aggregation of high-performance servers and workstations. High performance and scalability of intelligent network services is made possible with dedicated specialized resources known as ternary content addressable memory (TCAM). Ample TCAM resources (64,000 entries) enable high feature capacity, providing wire-speed routing and switching performance with concurrent provisioning of services such as quality of service (QoS) and security and helping ensure scalability for today’s network requirements with ample room for future growth.

Description

10 Gigabit Ethernet Switching for High-Performance, Rack-Optimized Server Switching

Product Overview

The Cisco Catalyst® 4948 10 Gigabit Ethernet Switch is a wire-speed, low-latency, Layer 2 to 4, 1-rack-unit (1RU), fixed-configuration switch for rack-optimized server switching. Based on the proven Cisco® Catalyst 4500 Series hardware and software architecture, the Cisco Catalyst 4948 10 Gigabit Ethernet Switch offers exceptional performance, bandwidth, and reliability for low-density, multilayer aggregation of high-performance servers and workstations. High performance and scalability of intelligent network services is made possible with dedicated specialized resources known as ternary content addressable memory (TCAM). Ample TCAM resources (64,000 entries) enable high feature capacity, providing wire-speed routing and switching performance with concurrent provisioning of services such as quality of service (QoS) and security and helping ensure scalability for today’s network requirements with ample room for future growth.

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch offers 48 ports of wire-speed 10/100/1000BASE-T with 2 ports of wire-speed 10 Gigabit Ethernet (X2 optics). Exceptional reliability and serviceability are delivered with optional internal AC or DC 1+1 hot-swappable power supplies and a hot-swappable fan tray with redundant fans (Figures 1 and 2).

Figure 1.      Cisco Catalyst 4948 10 Gigabit Ethernet Switch

Figure 2.      Rear View of Cisco Catalyst 4948 10 Gigabit Ethernet Switch with Dual Redundant Power Supplies and Removable Fan Tray

Features and Benefits

Wire-Speed Performance in All Directions

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch delivers wire-speed throughput with low latency for data-intensive applications using a 136-Gbps switching fabric with a forwarding rate of 102 million packets per second (mpps) in hardware for Layer 2 to 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 enables increased scalability and performance. X2 10 Gigabit Ethernet optics provide 20 Gigabit Ethernet wire-speed uplinks for outstanding throughput of traffic.

Power-Supply Redundancy for Nonstop Operation

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch 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 outstanding deployment flexibility. The Cisco Catalyst 4948 10 Gigabit Ethernet Switch also has a hot-swappable fan tray with four redundant fans for additional serviceability and availability.

Comprehensive Management

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch 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 the Simple Network Management Protocol (SNMP), Telnet client, Bootstrap Protocol (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 10 Gigabit Ethernet Switch to reload a new image from a TFTP server within seconds.

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch 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 10 Gigabit Ethernet Switch 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 describes the software configuration options for the Cisco Catalyst 4948 10 Gigabit Ethernet Switch.

Table 1.       Software Configuration Options for the Cisco Catalyst 4948 10 Gigabit Ethernet Switch

Software Image

Description

LAN Base Image

Basic Layer 2 image

IP Base Image

Standard Layer 3 image, including Routing Information Protocol Version 1 (RIPv1), RIPv2, static routes, and Enhanced Interior Gateway Routing Protocol (EIGRP) stub

Enterprise Services Image

Enhanced Layer 3 image, including Open Shortest Path First (OSPF), Intermediate System-to-Intermediate System (IS‑IS), EIGRP, Border Gateway Protocol (BGP), AppleTalk, and Internetwork Packet Exchange (IPX) software routing; also includes all IP Base image features

 

Feature Comparison

Table 2 compares the features of the Cisco Catalyst 4948 Switch, Catalyst 4948 10 Gigabit Ethernet Switch, and Catalyst 4900M Switch.

Table 2.       Cisco Catalyst 4900 Series Switches Model Comparison

Feature and Description

Cisco® Catalyst 4948

Cisco Catalyst 4948 10 Gigabit Ethernet

Cisco Catalyst 4900M

Switching Capacity

96 Gbps

136 Gbps

320 Gbps

Throughput

72 mpps

102 mpps

●  250 mpps for IPv4
●  125 mpps for IPv6

IPv6 Support

In Software

In Software

In Hardware

Height

1RU

1RU

2RU

Modular Half-Card Slots

0

0

2

Maximum 10/100/1000 Ports

48

48

40

Maximum 10 Gigabit Ethernet Ports

0

2

24

Maximum Gigabit Ethernet (fiber) Ports

4

0

32 (Cisco TwinGig Converter Module)

Cisco TwinGig Converter Module Support

No

No

Yes (half-cards only)

Uplink Optic Type

4 Small Form-Factor Pluggable (SFP) optics

2 X2 (10 Gigabit Ethernet) optics

8 X2 (10 Gigabit Ethernet) optics

Multilayer Switching

IP Base and Enterprise Services options

IP Base and Enterprise Services options

IP Base and Enterprise Services options

Shared Buffer

16 MB

16 MB

16 MB

CPU

266 MHz

666 MHz

1.3 GHz

Synchronous Dynamic RAM (SDRAM)

256 MB

256 MB

512 MB

Active VLANs

4096

4096

4096

Multicast Entries

●  28,000 (Layer 3)
●  16,000 (Layer 2)
●  28,000 (Layer 3)
●  16,000 (Layer 2)
●  56,000 for IPv4
●  28,000 for IPv6

Per-VLAN Spanning Tree (PVST) and VLAN IDs

4096

4096

4096

Spanning Tree Protocol Instances

10000

10000

10000

Switched Virtual Interfaces (SVIs)

2000

2000

4000

Security and QoS Hardware Entries

32,000

32,000

128,000

MAC Addresses

32,000

55,000

55,000

Switched Port Analyzer (SPAN)

2 ingress and 4 egress

2 ingress and 4 egress

8 ingress and 8 egress

USB port

No

No

Yes

Compact Flash Memory Support

No

No

Yes

System Reset Button

No

No

Yes

Minimum Software Requirement

Cisco IOS® Software Release 12.2(20)EWA or later

Cisco IOS Software Release 12.2(25)EWA or later

Cisco IOS Software Release 12.2(40)XO or later

 

Predictable Performance and Scalability

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch is optimized for multimedia applications with its advanced multicast support. It supports Protocol Independent Multicast (PIM), Source-Specific Multicast (SSM), and Pragmatic General Multicast (PGM), providing end users with additional scalability to support multimedia applications. Also supported is Internet Engineering Task Force (IGMP) snooping in hardware, enhancing performance and reducing network traffic by allowing a switch to dynamically add and remove hosts from a multicast group.

Intelligent Network Services with QoS and Sophisticated Traffic Management

The Cisco Catalyst 4948 10 Gigabit Ethernet Switch offers superior per-port QoS features to help ensure that network traffic is classified, prioritized, and scheduled optimally to efficiently manage bandwidth-hungry multimedia, and time-sensitive and mission-critical applications. The Catalyst 4948 10 Gigabit Ethernet Switch can classify, police, and mark incoming packets, allowing the administrator to differentiate between traffic flows and enforce policies. Sharing, shaping, and strict-priority configurations determine scheduling of egress traffic. The Catalyst 4948 10 Gigabit Ethernet Switch also supports Dynamic Buffer Limiting (DBL), a congestion-avoidance feature. For details about the QoS features (including DBL) on the Cisco Catalyst 4948 10 Gigabit Ethernet Switch, refer to the Cisco Catalyst 4500 Series supervisor engine QoS overview at http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_white_papers_list.html

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