Chapter 29 Error Disable
XS1930 Series User’s Guide
229
29.4 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.
Mode
This field shows the action that the Switch takes for the cause.
•
inactive-port
- The Switch disables the port.
•
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 Left
(secs)
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.
Table 112 Advanced Application > Errdisable > Errdisable Status (continued)
LABEL
DESCRIPTION