ZyXEL Communications XGS4600 Series - Error-Disable Detect Configuration

Chapter 35 Error-Disable
XGS4600 Series User’s Guide
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35.5 Error-Disable Detect Configuration
Use this screen to have the Switch detect whether the control packets exceed the rate limit configured
for a port and configure the action to take once the limit is exceeded. Click the Click Here link next to
Errdisable Detect link in the Advanced Application > Errdisable screen to display the screen as shown.
Figure 287 Advanced Application > Errdisable > Errdisable Detect
The following table describes the labels in this screen.
* Use this row to make the setting the same for all ports. Use this row first and then make
adjustments to each port if necessary.
Changes in this row are copied to all the ports as soon as you make them.
Rate Limit (pkt/s) Enter a number from 0 to 256 to specify how many control packets this port can receive or
transmit per second.
0 means no rate limit.
You can configure the action that the Switch takes when the limit is exceeded.
Apply Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the Save link on the top navigation panel to save
your changes to the non-volatile memory when you are done configuring.
Cancel Click Cancel to begin configuring this screen afresh.
Table 160 Advanced Application > Errdisable > CPU protection (continued)
LABEL DESCRIPTION
Table 161 Advanced Application > Errdisable > Errdisable Detect
LABEL DESCRIPTION
Cause This field displays the types of control packet that may cause CPU overload.
* Use this row to make the setting the same for all entries. Use this row first and then make
adjustments to each entry if necessary.
Changes in this row are copied to all the entries as soon as you make them.
Active Select this option to have the Switch detect if the configured rate limit for a specific control
packet is exceeded and take the action selected below.
Mode Select the action that the Switch takes when the number of control packets exceed the rate
limit on a port, set in the Advanced Application > Errdisable > CPU protection screen.
• 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 ports has to handle in
every one second.