Chapter 8 Loop Detection
MES-2110 User’s Guide
73
The following table describes the labels in this screen.
Table 13
Configuration > Loop Detection
LABEL
DESCRIPTION
Protection
Select Enable or Disable to have the MES-2110 apply loop
detection.
The MES-2110 generates syslog, internal log messages as well as
SNMP traps when it shuts down a port via the loop detection
feature.
MAC Address
This is the MAC address of the probe frame sent by the MES-
2110. You can configure the field as a unicast or multicast MAC
address, depending on your needs.
The default MAC address is a multicast address
(01.01.02.02.03.03). Some network switch does not forward
frames with unrecognized multicast MAC address. Test frames
sent out for loop detection will be discarded by this type of switch.
Users can configure a unicast MAC address to solve this problem.
Port
This is the port number.
Enable/Disable
Select Enable or Disable to have the MES-2110 apply loop
detection feature on this port. When the loop detection feature is
enabled, the MES-2110 sends probe frames from this port to
check if the switch it is connected to is in loop state. If the switch
that this port is connected is in loop state the MES-2110 will shut
down this port.
Block/Unblock
When the MES-2110 detects looping, the system sets the port to
Block. Use this field to Unblock the port once you have manually
fixed the loop.
Undo
Click this to restore your last saved settings.
Refresh
Click this to reset the data for the field(s).
Apply
Click Apply to save your changes to the ZyXEL Device’s run-time
memory. The ZyXEL Device loses these changes if it is turned off
or loses power, so use the Save Settings link in the navigation
panel to save your changes to the non-volatile memory.
Summary of Contents for ES-100
Page 2: ......
Page 8: ...Safety Warnings MES 2110 User s Guide 8 ...
Page 10: ...Contents Overview MES 2110 User s Guide 10 ...
Page 17: ...Table of Contents MES 2110 User s Guide 17 Index 229 ...
Page 18: ...Table of Contents MES 2110 User s Guide 18 ...
Page 50: ...Chapter 4 Tutorials MES 2110 User s Guide 50 ...
Page 74: ...Chapter 8 Loop Detection MES 2110 User s Guide 74 ...
Page 76: ...Chapter 9 Jumbo Frame MES 2110 User s Guide 76 ...
Page 88: ...Chapter 10 802 1x MES 2110 User s Guide 88 ...
Page 136: ...Chapter 17 IGMP MES 2110 User s Guide 136 ...
Page 140: ...Chapter 18 DHCP Relay Configuration MES 2110 User s Guide 140 ...
Page 150: ...Chapter 19 IP Source Guard MES 2110 User s Guide 150 ...
Page 206: ...Chapter 23 Command Line Interface MES 2110 User s Guide 206 ...
Page 214: ...Chapter 24 Troubleshooting MES 2110 User s Guide 214 ...
Page 220: ...Appendix A Changing a Fuse MES 2110 User s Guide 220 ...
Page 228: ...Appendix C Legal Information MES 2110 User s Guide 228 ...