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Catalyst 2950 Desktop Switch Software Configuration Guide
78-14982-01
Preface
Organization
Chapter 8, “Configuring 802.1X Port-Based Authentication,” describes how to configure 802.1X
port-based authentication to prevent unauthorized devices (clients) from gaining access to the network.
As LANs extend to hotels, airports, and corporate lobbies, insecure environments could be created.
Chapter 9, “Configuring the Switch Interfaces,” defines the types of interfaces on the switch. It describes
the interface global configuration command and provides procedures for configuring physical
interfaces.
Chapter 10, “Configuring LRE,” describes how to configure LRE-specific features on your switch.
Chapter 11, “Configuring STP,” describes how to configure the Spanning Tree Protocol (STP) on your
switch.
Chapter 12, “Configuring RSTP and MSTP,” describes how to configure the Cisco implementation of
the IEEE 802.1W Rapid STP (RSTP) and the IEEE 802.1S Multiple STP (MSTP) on your switch. RSTP
provides rapid convergence, and MSTP enables VLANs to be grouped into a spanning-tree instance.
Chapter 13, “Configuring Optional Spanning-Tree Features,” describes how to configure optional
spanning-tree features that can be used when your switch is running the per-VLAN spanning-tree
(PVST) or the MSTP.
Chapter 14, “Configuring VLANs,” describes how to create and maintain VLANs. It includes
information about the VLAN database, VLAN configuration modes, extended-range VLANs, VLAN
trunks, and the VLAN Membership Policy Server (VMPS).
Chapter 15, “Configuring VTP,” describes how to use the VLAN Trunking Protocol (VTP) VLAN
database for managing VLANs. It includes VTP characteristics and configuration.
Chapter 16, “Configuring Voice VLAN,” describes how to configure voice VLANs on the switch for a
connection to an IP phone.
Chapter 17, “Configuring IGMP Snooping and MVR,” describes how to configure Internet Group
Management Protocol (IGMP) snooping. It also describes Multicast VLAN Registration (MVR), a local
IGMP snooping feature available on the switch, and how to use IGMP filtering to control multicast
group membership.
Chapter 18, “Configuring Port-Based Traffic Control,” describes how to reduce traffic storms by setting
broadcast, multicast, and unicast storm-control threshold levels; how to protect ports from receiving
traffic from other ports on a switch; how to configure port security by using secure MAC addresses; and
how to set the aging time for all secure addresses.
Chapter 20, “Configuring CDP,” describes how to configure Cisco Discovery Protocol (CDP) on your
switch.
Chapter 21, “Configuring SPAN and RSPAN,” describes how to configure Switched Port Analyzer
(SPAN) and Remote SPAN (RSPAN), which select network traffic for analysis by a network analyzer
such as a SwitchProbe device or other Remote Monitoring (RMON) probe.
Chapter 22, “Configuring RMON,” describes how to configure remote monitoring (RMON). The
RMON feature, which is used with the Simple Network Management Protocol (SNMP) agent in the
switch, means that you can monitor all the traffic flowing among switches on all connected LAN
segments.
Chapter 23, “Configuring System Message Logging,” describes how to configure system message
logging. It describes the message format and how to change the message display destination device, limit
the type of messages sent, configure the UNIX server syslog daemon, and define the UNIX system
logging facility and timestamp messages.
Chapter 24, “Configuring SNMP,” describes how to configure the Simple Network Management
Protocol (SNMP). It describes how to configure community strings, enable trap managers and traps, set
the agent contact and location information, and how to limit TFTP servers used through SNMP.