Link Reports Window
This window appears when you choose a link in the Topology view and then choose
Reports > Link Reports from the menu bar. You can also:
- Right-click a link in the Topology view to display the link popup menu and
then choose Link Reports from the menu.
- Click here to launch the window.
Note: To generate a report, one end of the link must be connected
to a Catalyst 2900 XL or 3500 XL switch.
The report provides port group, VLAN, and STP information, as well as MAC addresses.
When generating link reports, it is important to understand which device is
reporting information to the application. If the link is between Catalyst 2900
or 3500 switches, both ends of the link provide information for the report.
If the link is between a Catalyst 2900 or 3500 switch and a Catalyst 1900 or
2820 switch or an edge device, only the Catalyst 2900 or 3500 switch provides
information for the report.
Contents of a Link Report
For the port on each end of the link, the link report displays this information:
- The host name of the device on which the port is located.
- The name of the port.
If the port is a group member, the drop-down list contains the name of other ports in the
group (see Displaying Other Port Group
Members).
- The port group number, if the port belongs to a group; otherwise, this field
is blank.
- The speed of the link from the perspective of the controlling switch.
For port groups, the aggregate speed appears.
- The duplex setting on the port.
- The IDs of the VLANs to which the port is assigned.
A VLAN ID of Unknown means that the connected device was not able to
supply the information.
- The STP status.
If redundant links are present, the STP field shows one link in the
forwarding state and one link in a blocking state.
- The MAC address table for the port.
By default, this field shows the address table for dynamic MAC addresses. To display
static or secure addresses, select STATIC or SECURE from
the drop-down list with.
By default, the link report displays the name of the selected port in the group. To
display other port group members, select another port name from the drop-down list. After
your selection, all fields in the link report display information about the selected port
and the port to which it is connected.