Chapter 6 Tutorials
MGS3520 Series User’s Guide
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The settings are completed now. If you miss some settings above, subscriber
C
could not
successfully receive an IP address assigned by the PPPoE Server. If this happens, make sure you
follow the steps exactly in this tutorial.
6.4 How to Use Error Disable and Recovery on the Switch
This tutorial shows you how to shut down a port when:
• there is a loop occurred
or
• too many ARP requests (over 100 packets per second) received on a port
You also want the Switch to wait for a period of time (10 minutes) before resuming the port
automatically, after the problem(s) are gone. Loop guard and Errdiable features are helpful for this
demand.
Note: Refer to
for more
information about Loop Guard and Errdiable.
To configure the settings:
1
First, click
Advanced Application > Loop Guard
. Select the
Active
option in the first section to
enable loop guard on the Switch. Then select the
Active
option of the first entry (port *) to enable
loop guard for all ports. Click
Apply
.
2
Click
Advanced Application > Errdisable > CPU Protection
, select
ARP
as the reason, enter
100 as the rate limit (packets per second) for the first entry (port *) to apply the setting to all
ports. Then click
Apply
.
