Table 11: Switch Configuration Fields
Field
Description
IEEE 802.3x Flow
Control Mode
The 802.3x flow control mode on the switch. IEEE 802.3x flow control works by pausing
a port when the port becomes oversubscribed. This allows lower-speed switches to
communicate with higher-speed switches. A lower-speed or congested switch can send
a PAUSE frame requesting that the peer device refrain from sending packets.
Transmissions are temporarily halted to prevent buffer overflows. The options are as
follows:
•
Disabled – The switch does not send PAUSE frames if the port buffers become full.
•
Enabled – The switch can send PAUSE frames to a peer device if the port buffers
become full.
MAC Address Aging
Interval
The MAC address table (forwarding database) contains static entries, which never age
out, and dynamically-learned entries, which are removed if they are not updated within a
given time. Specify the number of seconds a dynamic address should remain in the MAC
address table after it has been learned.
If you change any of the parameters, click
Submit
to apply the changes to the system. If you want the
switch to retain the new values across a power cycle, you must save the configuration.
IP Address Conflict Detection
Use the IP Address Conflict Detection page to run the IP Address Conflict Detection tool, which detects
IP address conflicts for IPv4 addresses. When a conflict is detected, the switch updates the status on
the page, generates an
SNMP (Simple Network Management Protocol)
trap, and a logs a message
noting the conflict.
To display this page, click
System
>
Utilities
>
IP Address Conflict
in the navigation menu.
Table 12: IP Address Conflict Detection Fields
Field
Description
IP Address Conflict
Currently Exists
Shows whether an address conflict has been detected since status was last reset.
Last Conflicting IP
Address
The IP address of the interface that was last found to be conflicting. This field displays
only if a conflict has been detected since the switch was last reset.
Last Conflicting MAC
Address
The MAC address of the remote host associated with the IP address that was last found
to be conflicting. This field displays only if a conflict has been detected since the switch
was last reset.
Time Since Conflict
Detected
The time elapsed (displayed in days, hours, minutes, seconds) since the last conflict was
detected (provided a reset did not occur in the meantime). This field displays only if a
conflict has been detected since the switch was last reset.
To run the tool and check for possible address conflicts, click
Run Conflict Detection
. If the conflict
detection status is true, click
Reset Conflict Detection Status
to clear the information and run the tool
again.
Configuring System Information
ExtremeSwitching 200 Series: Administration Guide
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