Cisco Catalyst 2950 Software Guide

5-9
Catalyst 2950 Desktop Switch Software Configuration Guide
78-11380-03
Chapter 5 Clustering Switches
Planning a Switch Cluster
Discovery of Newly Installed Switches
A new, out-of-the-box switch is set with the default management VLAN, VLAN 1. By default, all access
ports on the new switch are assigned to management VLAN 1.
To add a new switch to a cluster, it must be connected to the cluster through an access port. When the
new switch joins a cluster, its default management VLAN changes to the VLAN of the immediately
upstream neighbor. The new switch also configures its access port to belong to the VLAN of the
immediately upstream neighbor.
An access port (AP) carries the traffic of and belongs to the management VLAN.
For example, the command switch in Figure 5-5 belongs to management VLAN 16.
• A new Catalyst 3550 switch automatically configures the access port to belong to the immediately
upstream VLAN, VLAN 16.
• A new Catalyst 2950 switch configures the access port to belong to the upstream VLAN, VLAN 16.
The management VLAN of the Catalyst 2950 switch becomes VLAN 16.
Figure 5-5 Discovery of Newly Installed Switches
APAP
Si
Catalyst 2950
command switch
Catalyst 3500 XL
switch
Catalyst 2950
switch
VLAN 16
VLAN 16
VLAN 16
VLAN 16
New (out-of-box)
Catalyst 3550
switch
New (out-of-box)
Catalyst 2950
switch
65581
(Management
VLAN 16)
(Management
VLAN 16)

Cisco Catalyst 2950 Specifications

General

Forwarding Bandwidth	8.8 Gbps
Switching Capacity	13.6 Gbps
Forwarding Rate	6.6 Mpps
Weight	3.6 kg
RAM	16 MB
Flash Memory	8 MB
Operating Humidity	10% to 85% non-condensing
Uplink Ports	2 x 10/100/1000Base-T
Dimensions	4.4 cm x 44.5 cm x 24.2 cm
Remote Management Protocol	SNMP, Telnet, HTTP
Features	Quality of Service (QoS), VLAN support
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p
Status Indicators	system
Operating Temperature	0 to 45°C
Ports	24 x 10/100 Ethernet ports
MAC Address Table Size	8, 192 entries
Power Supply	Internal 100-240V AC, 50-60Hz