Configuration Examples
442
M4100 Series Managed Switch
You can configure additional settings to control access to the network through the ports.
See
Port Security Interface Configuration on page 287 for information about the settings.
4. Click the APPLY button.
5. From the 802.1X Configuration screen, set the Port Based Authentication State and Guest
VLAN Mode to Enable, and then click the APPLY button.
Ssee Port Security Configuration on page 286.
This example uses the default values for the port authentication settings, but there are
several additional settings that you can configure. For example, the EAPOL Flood Mode
field allows you to enable the forwarding of EAPoL frames when 802.1X is disabled on
the device.
6. From the RADIUS Server Configuration screen, configure a RADIUS server with the
following settings:
• Server Address: 192.168.10.23
• Secret Configured: Yes
• Secret: secret123
• Active: Primary
For more information, see RADIUS on page 245.
7. Click the ADD button.
8. From the Authentication List screen, configure the default List to use RADIUS as the first
authentication method.
Ssee Set Up a Login Authentication List on page 275.
This example enables 802.1X-based port security on managed switch and prompts the hosts
connected on ports g5–g8 for an 802.1X-based authentication. The switch passes the
authentication information to the configured RADIUS server.
MSTP
Spanning Tree Protocol (STP) runs on bridged networks to help eliminate loops. If a bridge
loop occurs, the network can become flooded with traffic. IEEE 802.1s Multiple Spanning
Tree Protocol (MSTP) supports multiple instances of Spanning Tree to efficiently channel
VLAN traffic over different interfaces. Each instance of the Spanning Tree behaves in the
manner specified in IEEE 802.1w, Rapid Spanning Tree, with slight modifications in the
working but not the end effect (chief among the effects is the rapid transitioning of the port to
the forwarding state).
The difference between the RSTP and the traditional STP (IEEE 802.1D) is the ability to
configure and recognize full duplex connectivity and ports that are connected to end stations,
resulting in rapid transitioning of the port to the rorwarding state and the suppression of
topology change notification. These features are represented by the parameters pointtopoint
and edgeport. MSTP is compatible to both RSTP and STP. It behaves appropriately to STP
and RSTP bridges.
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