Chapter 1 Product Overview

Catalyst 4948 Switch Software Features

Figure 1-3 Catalyst 4928-10GE Switch

PS1

PS2

FAN

STATUS

1

8

9

16

17

 

 

 

 

 

24

CON

MGMT

ENABLED

29

Catalyst ME 4924 10GE

ENABLED

271710

27 2830

The Catalyst 4928-10GE switch has a 48-Gbps, nonblocking, full-duplexswitching fabric, providing 102 million packets-per-second of switching capacity for high-speed applications. The Catalyst 4928-10GE chassis has 28 1000BASEX SFP ports, and two X2 10-Gigabit Ethernet uplink ports.

All three switches have a removable automatic variable speed fan tray for low noise operation at room temperature and removable and redundant 300 W AC or 300 W DC power supply provides fault-tolerance protection for the switch. See the “Connecting AC Power to the Switch” section on page 3-9.

Catalyst 4948 Switch Software Features

The following is an overview of Catalyst 4948 features:

Layer 2, Layer 3, and Layer 4 switching services

Support for 32,768 MAC addresses for Layer 2 switching

Support for 2,048 VLANs and 4,096 VLAN IDs

IEEE 802.1Q VLAN tagging on all ports

Q-in-Q for EFM

Cisco Inter Switch Link (ISL) tagging on all ports

16,000 multicast forwarding entries and 16,000 unicast forwarding entries

512 ingress policers and 512 egress policers

8,000 ingress Security ACEs (Access Control Entries) and 8,000 egress Security ACEs

Support for port aggregation using Port Aggregation Protocol (PAgP) for Gigabit EtherChannel

 

 

Catalyst 4900 Series Switch Installation Guide

 

 

 

 

 

 

78-18039-02

 

 

1-3

 

 

 

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Cisco Systems 4900 Series manual Catalyst 4948 Switch Software Features, Catalyst 4928-10GE Switch