D-Link DGS-3630-28SC [556/742] Safeguard engine settings

DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide

544

Protocol Name Sub-interface

(Group)

Description

SSH

Manage Secure Shell

STP

Protocol Spanning Tree Protocol

Telnet

Manage Telnet

TFTP

Manage Trivial File Transfer Protocol

VRRP

Protocol Virtual Router Redundancy Protocol

Web

Manage Hypertext Transfer Protocol (HTTP) and Hypertext Transfer Protocol

Secure (HTTPS)

A customized rate limit (in packets per second) can be assigned to the Safeguard Engine’s sub-interfaces as a whole

or to individual protocols specified by the user in the management interface. Be careful when customizing the rate limit

for individual protocols, using this function, as improper rate limits can cause the Switch to process packets

abnormally.

NOTE: When Safeguard Engine is enabled, the Switch will allot bandwidth to various traffic flows (ARP,

IP) using the FFP (Fast Filter Processor) metering table to control the CPU utilization and limit

traffic. This may limit the speed of routing traffic over the network.

Safeguard Engine Settings

This window is used to display and configure the safeguard engine settings.

To view the following window, click Security > Safeguard Engine > Safeguard Engine Settings, as shown below:

Figure 9-80 Safeguard Engine Settings Window

The fields that can be configured in Safeguard Engine Settings are described below:

Parameter Description

Safeguard Engine State

Select to enable or disable the safeguard engine feature here.

Trap State

Select to enable or disable the safeguard engine trap state here.

The fields that can be configured in CPU Utilization Settings are described below:

Parameter Description

Rising Threshold

Enter the rising threshold value here. This value must be between 20% and

100%. This value is 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