Netgear M4300-28G-PoE+ (GSM4328PB) - 24x1G PoE+ Stackable Managed Switch with 2x10GBASE-T and 2xSFP+ (1000W PSU) User Manual

Page of 700
 Configuration Examples
691
 M4200 and M4300 Series ProSAFE Managed Switches Web Management User Manual
6. 
From the RADIUS Server Configuration page, 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. 
From the Authentication List page, configure the default List to use RADIUS as the first 
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.
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 
appropriately to STP and RSTP bridges.
A MSTP bridge can be configured to behave entirely as a RSTP bridge or a STP bridge. So, 
an IEEE 802.1s bridge inherently also supports IEEE 802.1w and IEEE 802.1D.
The MSTP algorithm and protocol provides 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 
maximum possible extent. The connectivity calculated for the CIST provides the CST for 
interconnecting these Regions, and an Internal Spanning Tree (IST) within each Region.