3Com 5500-EI PWR Install Manual page 744

Status
connection error
reached max units
different system name
different product
version
auth failure
XRN automatic fabric
If the software version and fabric name of the candidate switch are inconsistent with those of the device
in the XRN fabric, the local device cannot be added to the fabric. In this case, you have to manually
download and load the software, and then restart the device, or manually change the fabric name to add
the device to the fabric. Switch 5500-EI series switches provide the XRN automatic fabric function,
which enables a candidate switch to automatically download the software and change the fabric name
in case that the software version and fabric name of the candidate device and that of the device in the
fabric are different, thus reducing the manual maintenance workload.
With XRN automatic fabric enabled, if inconsistency in software version or fabric name occurs when a
switch is added to a fabric, the system automatically performs the following operations:
If the software version of the local device is inconsistent with that of the device in the fabric, the
system automatically initiates a download request to the device with the smallest unit ID in the
fabric and downloads the software used by the device in the current fabric to the local device. Then
the device will automatically restart and be added to the fabric.
If the fabric name of the local device is inconsistent with that of the device in the fabric, the system
automatically ignores the inconsistency check of the fabric name and adds the device to the fabric.
Analysis
Two fabric ports of the
same device (that is, the
right port and the left port)
are connected.
The left and right fabric
Indicates
ports of the devices are
three kinds
not connected in a
of port
crossed way.
matching
errors may
A fabric port of the local
occur.
switch is connected to a
non-fabric port, or is
connected to a fabric port
that does not have fabric
port function enabled.
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.
The fabric name of the device directly
connected to the switch and the existing
fabric name of the fabric are not the
same.
The software version of the directly
connected device and that of the current
device are not the same.
The XRN fabric authentication modes
configured for the local device and that
of the fabric are not the same, or the
password configured does not match.
1-4
Solution
Pull out one end of the cable
and connect it to a fabric port of
another switch.
Connect the left and right ports
of two devices in a crossed
way.
Check the types of the two
interconnected ports on two
sides. Make sure a fabric port is
only connected to ports of the
same type and the fabric ports
on both sides are enabled with
the fabric port function.
Remove the new device or
existing devices in the fabric.
Modify the fabric name of the
new device to be that of the
fabric.
Update the software version to
make sure the software version
of the new device is the same
as that of the fabric.
Configure the XRN fabric
authentication modes and the
passwords for the local device
and the fabric as the same.