Bedienungsanleitung Netgear GC110 (Seite 401 von 416) (Englisch)

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Configuration Examples

401

Insight Managed 8-Port Gigabit Ethernet Smart Cloud Switch with 2 SFP Fiber Ports

This example uses the default values for the port authentication settings, but you can

configure several additional settings. 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. On the Server Configuration page (see Configure a RADIUS Authentication Server on the

Switch on page 243), configure a RADIUS server with the following settings:

• Server Address. 192.168.10.23

• Secret Configured. Yes

• Secret. secret123

• Active. Primary

7. Click the Add button.

8. On the Dot1x Authentication List page (see Configure the Dot1x Authentication List on

page 255), configure the default list to use RADIUS as the first authentication method.

This example enables 802.1X-based port security on the 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.

Multiple Spanning Tree Protocol (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 Forwarding 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 in a way

that is appropriate for STP and RSTP bridges.

An MSTP bridge can be configured to behave entirely as a RSTP bridge or an STP bridge.

So, an IEEE 802.1s bridge inherently also supports IEEE 802.1w and IEEE 802.1D.

The MSTP algorithm and protocol provide simple and full connectivity for frames assigned to

any given VLAN throughout a bridged LAN comprising arbitrarily interconnected networking

devices, each operating MSTP, STP, or RSTP. MSTP allows frames assigned to different

VLANs to follow separate paths, each based on an independent Multiple Spanning Tree

Instance (MSTI), within Multiple Spanning Tree (MST) regions composed of LANs and or

MSTP bridges. These regions and the other bridges and LANs are connected into a single

Common Spanning Tree (CST). (IEEE DRAFT P802.1s/D13)

MSTP connects all bridges and LANs with a single Common and Internal Spanning Tree

(CIST). The CIST supports the automatic determination of each MST region, choosing its

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