Cisco Catalyst 2950 Software Guide

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Catalyst 2950 Desktop Switch Software Configuration Guide
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Chapter 8 Configuring VLANs
Assigning VLAN Port Membership Modes
When a port belongs to a VLAN, the switch learns and manages the addresses associated with the port
on a per-VLAN basis. For more information, see the “Managing the MAC Address Tables” section on
page 6-15.
Table 8-2 Port Membership Modes
Membership Mode VLAN Membership Characteristics
Static-access A static-access port can belong to one VLAN and is manually assigned. By default, all ports are
static-access ports assigned to VLAN 1.
IEEE 802.1Q A trunk is a member of all VLANs in the VLAN database by default, but membership can be limited
by configuring the allowed-VLAN list. You can also modify the pruning-eligible list to block
flooded traffic to VLANs on trunk ports that are included in the list.
VLAN Trunking Protocol (VTP) maintains VLAN configuration consistency by managing the
addition, deletion, and renaming of VLANs on a network-wide basis. VTP exchanges VLAN
configuration messages with other switches over trunk links.
Dynamic access A dynamic-access port can belong to one VLAN and is dynamically assigned by a VLAN
Membership Policy Server (VMPS). The VMPS can be a Catalyst 5000 series switch but never a
Catalyst 2950, Catalyst 2900 XL, or Catalyst 3500 XL switch.

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