Chapter 30 Error Disable
GS3700/XGS3700 Series User’s Guide
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The following table describes the labels in this screen.
30.5 CPU Protection Configuration
Use this screen to limit the maximum number of control packets (ARP, BPDU and/or IGMP) that the
Switch can receive or transmit on a port. Click the Click Here link next to CPU protection in the
Advanced Application > Errdisable screen to display the screen as shown.
Note: After you configure this screen, make sure you also enable error detection for the
specific control packets in the Advanced Application > Errdisable > Errdisable
Detect screen.
Table 133
Advanced Application > Errdisable > Errdisable Status
LABEL
DESCRIPTION
Inactive-reason
mode reset
Port List
Enter the number of the port(s) (separated by a comma) on which you want to reset
inactive-reason status.
Cause
Select the cause of inactive-reason mode you want to reset here.
Reset
Press to reset the specified port(s) to handle ARP, BPDU or IGMP packets instead of ignoring
them, if the port(s) is in inactive-reason mode.
Errdisable
Status
Port
This is the number of the port on which you want to configure Errdisable Status.
Cause
This refers to the cause of Errdisable Detect or Errdisable Recovery on the Switch.
Active
This field displays whether ARP, BPDU, IGMP and LOOP GUARD on the port is being detected
or not.
Mode
This field shows the mode of the cause.
•
inactive-port - The Switch disables the port on which the control packets are received.
•
inactive-reason - The Switch drops all the specified control packets (such as BPDU) on
the port.
•
rate-limitation - The Switch drops the additional control packets the port(s) has to
handle in every one second.
Rate
This field displays how many control packets this port can receive or transmit per second. It
can be adjusted in CPU Protection. 0 means no rate limit.
Status
This field displays the errdisable status
•
Forwarding: The Switch is forwarding packets. Rate-limitation mode is always in
Forwarding status.
•
Err-disable: The Switch disables the port on which the control packets are received
(inactive-port) or drops specified control packets on the port (inactive-reason)
Recovery
Time
This field displays the time (seconds) left before the port(s) becomes active of Errdisable
Recovery.
Total
Dropped
This field displays the total packet number dropped by this port where the packet rate
exceeds the rate of mode rate-limitation.
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