Chapter 5 | Configuration Using the |
Security > Storm Control
The Storm Control screen is used to configure broadcast and multicast storm control.
Security > Storm Control
Storm Control enables limiting the amount of Multicast and Broadcast frames accepted and forwarded by the Switch. A Broadcast Storm results when an excessive amount of broadcast messages is simultaneously transmitted across a network by a single port. Forwarded message responses are heaped onto the network, straining network resources or causing the network to time out.
To enable Storm Control on a port, you specify the packet type (broadcast/multicast) and maximum transmission rate. The system measures the incoming Broadcast and Multicast frame rates separately on each port and discards frames when the rate exceeds the specified maximum.
Interface Select the unit number and port from which storm control is enabled.
Broadcast Control Select the checkbox to apply Broadcast control on the selected interface. Broadcast control limits the amount of Broadcast packet types to be forwarded. The default is not selected (disabled).
Mode Specifies the Broadcast mode currently enabled on the device. The possible values are:
•Multicast & Broadcast Counts Broadcast and Multicast traffic together.
•Broadcast Only Counts only Broadcast traffic.
Rate Threshold The maximum rate (packets per second) at which unknown packets are forwarded. The ranges are 70 kbps to 100 Mbps for FE ports, and 3.5 to 100 Mbps for GE ports. The default value is 3500 kbps.
The Update button adds the Storm Control settings to the Storm Control table at the bottom of the screen.
Security > RADIUS
The RADIUS screen is used to configure a Remote Authorization
Security > RADIUS
RADIUS servers provide additional security for networks by providing a centralized authentication method for web access. Up to eight RADIUS servers can be configured. The Switch attempts authentication using the listed sequence of servers. The process ends when a server either approves or denies access to a user.
IP Address Enter the IP address of the authentication server.
Priority The server priority. The possible values are 0 to 65535, where 0 is the highest priority. This priority determines the order in which RADIUS servers are queried when more than one RADIUS server is configured. The default priority is 0.
Authentication Port Enter the authentication port. The authentication port is used to verify the RADIUS server authentication. The default value is 1812.
Number of Retries Defines the number of transmitted requests sent to RADIUS server before a failure occurs. The possible values are 1 to 10. The default is 3.
Timeout for Reply Defines the amount of the time in seconds the device waits for an answer from the RADIUS server before retrying the query, or switching to the next server. The possible values are 1 to 30. The default is 3.
Dead Time Defines the amount of time (minutes) that a RADIUS server is bypassed for service requests. The range is 0 to 2000. The default is 0 minutes.
Key String Defines the default key string used to authenticate and encrypt all RADIUS communications between the device and the RADIUS server. This key must match the RADIUS encryption.
Source IP Address Defines the source IP address that is used for communication with RADIUS servers.
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