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E
ES4710BD 10 Slots L2/L3/L4 Chassis Switch
8.4.1.2 show mac-address-table static
Command: show mac-address-table [static] [address <
mac-addr>
] [vlan <
vlan-id>
] [interface
<
interface-name>
]
Function:
Displays the content of the current MAC table in the switch.
Parameters:
static
stands for static entries;
<mac-addr>
for the MAC addresses of the entries to be
displayed;
<vlan-id>
for the VLAN numbers of the entries to be displayed;
<interface-name>
for
the port names of the entries to be displayed
Command mode:
Admin Mode
Default:
MAC table content is not displayed by default.
Usage Guide:
This command can be used to display static and dynamic MAC address entries in
categorized view, you can also use the “
show mac-address-table
” command to display all MAC
entries in the switch.
Example:
Displaying the static entries in the MAC table.
Switch#show mac-address-table static
8.4.1.3 show mac-address-table blackhole
Command: show mac-address-table blackhole [address <
mac-addr>
] [vlan <
vlan-id>
]
Function:
Displays the filter entries of the current MAC table.
Parameters:
blackhole
stands for filter entries;
<mac-addr>
for the MAC addresses of the entries
to be displayed;
<vlan-id>
for the VLAN number of the entries to be displayed.
Command mode:
Admin Mode
Default:
Filter MAC entries are not displayed by default.
Usage Guide:
This command can be used to display all filter MAC address entries in categorized
view.
Example:
Displaying the filter entries in the MAC table.
Switch#show mac-address-table blackhole
8.4.2 Troubleshooting Help
Using the show mac-address-table command, it has been discovered that a port has failed to
learn the MAC of a device connected to it. Possible reasons:
)
The connected cable is broken. Replace the cable.
)
Spanning Tree has started and the port is in “discarding” status; or the device was recently
connected to the port and Spanning Tree is still under calculation. Wait until the Spanning Tree
calculation finishes. The port will then learn the MAC address.
)
If not the above-mentioned problem, please check for port healthy and contact technical
