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Chapter 81 Error-Disable
XS3800-28 User’s Guide
599
81.3 CPU Protection Setup
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
SECURITY
>
Errdisable
>
CPU Protection
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
SECURITY
>
Errdisable
>
Errdisable Detect
screen.
SLOT
This field appears only in Stacking mode. Click the drop-down list to choose the slot number of
the Switch in a stack.
Port
This field displays the port number. In Stacking mode, the first number represents the slot ID and
the second is the port number. Please note that the default stacking ports (the last four ports of
your Switch) cannot be configured. They are reserved for stacking only.
Cause
This displays the type of the control packet received on the port or the feature enabled on the
port and causing the Switch to take the specified action.
Active
This field displays whether the control packets (ARP, BPDU, and/or IGMP) on the port is being
detected or not. It also shows whether loop guard, anti-arp scanning, BPDU guard or ZULD is
enabled on the port.
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 ports 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 ports 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 319 SECURITY > Errdisable > Errdisable Status (continued)
LABEL
DESCRIPTION
Содержание XS3800-28
Страница 29: ...29 PART I User s Guide...
Страница 54: ...54 PART II Technical Reference...
Страница 88: ...Chapter 4 Web Configurator XS3800 28 User s Guide 88 Figure 51 Online Web Help...
Страница 123: ...Chapter 13 Neighbor XS3800 28 User s Guide 123 Figure 77 MONITOR Neighbor Neighbor Details Standalone Mode...
Страница 139: ...Chapter 17 System Information XS3800 28 User s Guide 139 Figure 90 MONITOR System Information Standalone Mode...
Страница 148: ...Chapter 20 Cloud Management XS3800 28 User s Guide 148 Figure 94 SYSTEM Cloud Management...
Страница 221: ...Chapter 33 Green Ethernet XS3800 28 User s Guide 221 Figure 149 PORT Green Ethernet Standalone Mode...
Страница 263: ...Chapter 36 OAM XS3800 28 User s Guide 263 Figure 182 PORT OAM OAM Status OAM Details...
Страница 334: ...Chapter 44 Multicast XS3800 28 User s Guide 334 Figure 248 MVR Group Configuration Example View...
Страница 406: ...Chapter 54 Spanning Tree Protocol XS3800 28 User s Guide 406 Figure 302 MSTP and Legacy RSTP Network Example...
Страница 420: ...Chapter 57 VLAN XS3800 28 User s Guide 420 Figure 315 SWITHCING VLAN VLAN Setup Static VLAN Add Edit Standalone Mode...
Страница 439: ...Chapter 57 VLAN XS3800 28 User s Guide 439 Figure 336 SWITCHING VLAN Port Based VLAN Setup Port Isolation...
Страница 540: ...Chapter 72 VRRP XS3800 28 User s Guide 540 Figure 434 VRRP Example 2 VRRP Status on Switch B...
Страница 581: ...Chapter 77 Policy Rule XS3800 28 User s Guide 581 Figure 456 Policy Example...
Страница 658: ...Chapter 86 Port Security XS3800 28 User s Guide 658 Figure 521 SECURITY Port Security Standalone Mode...
Страница 678: ...Chapter 87 MAINTENANCE XS3800 28 User s Guide 678 Figure 542 MAINTENANCE Configuration Configure Clone Stacking Mode...
Страница 680: ...Chapter 87 MAINTENANCE XS3800 28 User s Guide 680 Figure 543 MAINTENANCE Diagnostic Standalone Mode...
Страница 684: ...Chapter 87 MAINTENANCE XS3800 28 User s Guide 684 Figure 545 MAINTENANCE Firmware Upgrade Standalone Mode...
Страница 747: ...747 PART III Troubleshooting and Appendices...