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86 CHAPTER 4: XRN CONFIGURATION
reached max units
Analysis: The "reached max units" message indicates that the maximum number of
units allowed by the current fabric is reached. You will fail to add new devices to the
fabric in this case.
Solution: Remove the new device or existing devices in the fabric.
Up to eight devices can be in an XRN fabric at a time.
different system name
Analysis: The "different system name" message indicates the fabric name of the
device directly connected to the switch and the existing fabric name of the fabric are
not the same. Only the devices with the same fabric name can form a Fabric.
Solution: Configure the fabric name of the new device to be that of the fabric.
different product version
Analysis: The "different product version" message indicates the software version of
the directly connected device and that of the current device are not the same. A
device can join a fabric only when its software version is identical to that of the fabric.
Solution: Make sure the software version of the new device is the same as that of the
fabric.
auth failure
Analysis: The "auth failure" message indicates error occurs when the switch
authenticates a directly connected device. The error may occur if the XRN fabric
authentication modes configured for the both devices are not the same, or the
password configured does not match.
Solution: Make sure the XRN fabric authentication modes and the passwords
configured for the both devices are the same.
Multiple Fabric Port
Candidates
On a Switch 5500 series switch, four GigabitEthernet ports can operate as fabric
ports. The four ports are grouped into two groups. One group comprises of
GigabitEthernet1/1/1 and GigabitEthernet1/1/2 ports, the other comprises of
GigabitEthernet1/1/3 and GigabitEthernet1/1/4 ports. Only the ports of one group
can operate as fabric ports at a time. Of the ports in the two groups,
GigabitEthernet1/1/1 and GigabitEthernet1/1/3 ports can operate as UP fabric ports,
and GigabitEthernet1/1/2 and GigabitEthernet1/1/4 ports can operates as DOWN
fabric ports.
You can configure a port to be a fabric port using the fabric port command. Once
you configure a port to be a fabric port, the group to which the port belongs
becomes a fabric port group, and the other port in the group becomes a fabric port
automatically. For example, after you configure the GigabitEthernet1/1/1 port to be a
fabric port (a UP fabric port) by executing the fabric port GigabitEthernet1/1/1
enable command, the port group becomes a fabric port group, and
GigabitEthernet1/1/2 port, which belongs to the same port group, becomes a DOWN
fabric port.