D-Link DGS-3620-28SC [503/637] Sftp server settings

xStack

DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch Web UI Reference Guide

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Figure 9-90 Safeguard Engine Settings window

The fields that can be configured are described below:

Parameter Description

Safeguard Engine

State

Use the radio button to globally enable or disable Safeguard Engine settings for the

Switch.

Rising Threshold (20%

- 100%)

Used to configure the acceptable level of CPU utilization before the Safeguard

Engine mechanism is enabled. Once the CPU utilization reaches this percentage

level, the Switch will move into Exhausted mode, based on the parameters provided

in this window.

Falling Threshold (20%

- 100%)

Used to configure the acceptable level of CPU utilization as a percentage, where the

Switch leaves the Safeguard Engine state and returns to normal mode.

Trap / Log

Use the drop-down menu to enable or disable the sending of messages to the

device’s SNMP agent and switch log once the Safeguard Engine has been activated

by a high CPU utilization rate.

Mode

Used to select the type of Safeguard Engine to be activated by the Switch when the

CPU utilization reaches a high rate. The user may select:

Fuzzy – If selected, this function will instruct the Switch to minimize the IP and ARP

traffic flow to the CPU by dynamically allotting an even bandwidth to all traffic flows.

Strict – If selected, this function will stop accepting all ARP packets not intended for

the Switch, and will stop receiving all unnecessary broadcast IP packets, until the

storm has subsided.

The default setting is Fuzzy mode.

Click the Apply button to accept the changes made.

SFTP Server Settings

This window is used to enable, disable, and configure the SFTP function globally. SFTP over SSH2 is a remotely

secure file transfer protocol providing security on all file operations. SFTP server runs as a subsystem of SSH

server. SSH server is required to be enabled before enabling SFTP server.

To view this window, click Security > SFTP Server Settings as shown below: