Huawei Quidway S5600 Series Operation Manual page 764

Operation Manual – IRF Fabric
Quidway S5600 Series Ethernet Switches-Release 1510
If a fabric port of a switch is connected to a non-fabric port, the switch will not
receive DISC packets from the peer. In this case, the switch cannot join the
fabric.
If the switch can receive DISC packets sent by the peer, the FTM module
determines whether peer sending ports correspond to local receiving ports
according to information in the packet. That is, if a DISC packet received by the
left port of the switch is sent by the right port of the peer device, the packet is
regarded legal. Otherwise, the packet is regarded illegal and is discarded.
If the maximum number of devices allowed by the fabric is reached, the devices
in the fabric do not send DISC packets and discard the received DISC packets.
This prevents new devices from joining the fabric.
After receiving a DISC packet from a directly connected device, a device in a
fabric checks whether the device information (that is, the Fabric name and
software version) contained in the packet and those of its own are the same. If
not, the received DISC packet is illegal and will be discarded.
If authentication is enabled in the fabric, the current device in the fabric
authenticates received packets sent by new directly connected devices. Packets
that fail to pass the authentication will be discarded.
1.2.3 Prompt Information Analysis and Solution
The IRF Fabric peer detection function outputs different prompt information according
to the connection conditions of the devices within the Fabric. You can refer to the
following table to perform corresponding adjustment and maintenance for the Fabric.
Table 1-1 Prompt information analysis and solution
Prompt
normal
temporary
redundance port
connection error
Analysis
it indicates the fabric operates properly
it indicates the port status is changing
it indicates the port is the redundant
port in fabric ring topology
Tw o fabric ports of the
The port
sam e device (that is,
matching
the right port
three kinds
l eft
of errors
connected.
The left and right fabric
ports of two devices
are not connected in a
crossed way.
Huawei Technologies Proprietary
1-3
Chapter 1 IRF Fabric Configuration
The
"temporary"
"redundance
information
mean a device or a
fabric
improperly.
measure is needed
for any of these three
types of information
Pull out one end of
the cable and connect
and the
it to a fabric port of
port) are
another switch.
Connect the left and
right ports of two
devices in a crossed
way.
Solution
"normal",
and
port"
do not
operates
No