Link Report
With the Link Report page, you can:
Note: You must enable SNMP and set the community string set to
"public" to generate reports.
When generating link reports, it is important to understand which device is reporting
information to the application. If the link is between two switches in the stack, both
ends of the link provide information for the report. In this case, the secondary switch is
the controlling switch. If the link is between a stack device and an edge device, only the
stack device provides information for the report and is the controlling switch. The
controlling switch processes the information and reports it to the user interface.
The link report provides port group (and redundant link), VLAN, and network port
information. To generate a link report, click Link Report.
The link report displays the following information:
- The IP address and host name of the device at each end of the link.
The IP address and of the controlling device is displayed in the browser title bar.
- The speed of the link from the perspective of the controlling switch.
For port groups, the aggregate speed is displayed.
- The duplex setting for each end of the link.
- The port name for each end of the link.
The list box for each end of the link displays connection information that differentiates
a single connection, port group connections, and redundant link connections. In each of
these situations, when you select (highlight) a port name in one list box, the port to
which it is connected is highlighted in the other list box.
If the connected port is part of a port group, other port numbers for the group are listed
in a shortened form under the Other Ports in Group heading. For example, FastEthernet0/15
is shortened to 0/15.
If redundant links are present, the STP State message area shows one link in the
forwarding state and one link in a blocking state.
- The VLAN IDs.
A VLAN ID of "Unknown" means that the connected device was not able to supply
the information.
- Whether a port has been configured as a network port (unknown unicast packets received
on other ports of the VLAN are forwarded only to the network port).
- The linkbeat status.
The linkbeat determines whether the physical link between two ports is properly connected.
A green light means a linkbeat is present. A gray light means no linkbeat is present, a
recent problem with the link has occurred, and the presence of that link has been detected
through cached CDP information.
To refresh link report information, click Link Report.
Note: You can also refresh the link report information from the
network view. Click the right mouse button on a link and select Link Report
from the pop-up menu.