Virtual Lans (Vlans); Spanning Tree Protocol - Extreme Networks Summit 200-24 Installation And User Manual

ExtremeWare Overview
• RADIUS client and per-command authentication support
• TACACS+ support
• Network Login
• Console command-line interface (CLI) connection
• Telnet CLI connection
• SSH2 connection
• Simple Network Management Protocol (SNMP) support
• Remote Monitoring (RMON)
• Traffic mirroring for ports

Virtual LANs (VLANs)

ExtremeWare has a VLAN feature that enables you to construct your broadcast domains without being
restricted by physical connections. A VLAN is a group of location- and topology-independent devices
that communicate as if they were on the same physical local area network (LAN).
Implementing VLANs on your network has the following three advantages:
• They help to control broadcast traffic. If a device in VLAN Marketing transmits a broadcast frame,
only VLAN Marketing devices receive the frame.
• They provide extra security. Devices in VLAN Marketing can only communicate with devices on
VLAN Sales using routing services.
• They ease the change and movement of devices on networks.
NOTE
For more information on VLANs, see Chapter 7, "Virtual LANs (VLANs)".

Spanning Tree Protocol

The Summit 200 series switch supports the IEEE 802.1D Spanning Tree Protocol (STP), which is a
bridge-based mechanism for providing fault tolerance on networks. STP enables you to implement
parallel paths for network traffic, and ensure that:
• Redundant paths are disabled when the main paths are operational.
• Redundant paths are enabled if the main traffic paths fail.
A single spanning tree can span multiple VLANs.
NOTE
For more information on STP, see Chapter 14, "Spanning Tree Protocol (STP)".
36 Summit 200 Series Switch Installation and User Guide