16
Solution
To resolve the issue:
1.
Verify that the number of member devices does not exceed the upper limit (10).
If you are adding a new member device to an existing IRF fabric or merging IRF fabrics, use the
display irf
command to identify the number of member devices in the IRF fabrics. If the total
number of member devices exceeds the upper limit, the IRF setup will fail.
2.
Verify that the member ID of each member device is unique:
a.
Execute the
display irf
command to view the member ID of each member device.
b.
Use the
irf member renumber
command to assign a unique member ID to each member.
−
If you are adding a new member device to an existing IRF fabric, assign the member
device a member ID that is not being used in the IRF fabric.
−
If you are merging IRF fabrics, make sure each member device in these IRF fabrics has
a unique member ID.
3.
Verify that the IRF port bindings and physical IRF link connections are correct:
a.
Execute the
display irf configuration
command, and check the
IRF-Port1
and
IRF-Port2
fields for IRF port bindings.
b.
Verify that the physical interfaces bound to IRF ports are IRF capable. You can use QSFP+
or QSFP28 ports for IRF links. If there are binding errors, reconfigure the IRF port bindings.
IMPORTANT:
QSFP28 ports on the LSWM18CQMSEC module cannot be used as IRF physical interfaces.
c.
Verify that the IRF physical interfaces are correct connected. When you connect two
neighboring IRF members, you must connect the physical interfaces of IRF-port 1 on one
member to the physical interfaces of IRF-port 2 on the other.
4.
Verify that the correct transceiver modules and cables are used:
To connect QSFP+ ports in a long distance, use QSFP+ transceiver modules and fibers.
To connect QSFP+ ports in a short distance, use QSFP+ DAC or AOC cables.
To connect QSFP28 ports in a long distance, use QSFP28 or QSFP+ transceiver modules
and fibers.
To connect QSFP28 ports in a short distance, use QSFP28 or QSFP+ DAC or AOC cables.
IMPORTANT:
Except the above listed transceiver modules and fibers or cables, do not use any other
transceiver modules and fibers or cables to connect IRF physical interfaces on the switch
series.
When you use QSFP+ DAC cables to connect IRF physical interfaces for S6850 switch series
and S9850 switch series, follow these restrictions and guidelines:
The two ends of a physical IRF link must both use fixed ports as IRF physical interfaces or
both use ports on interface modules as IRF physical interfaces. Do not connect a fixed port
to a port on an interface module for IRF connection. However, you can bind fixed ports and
ports on an interface module to the same IRF port.
If you use ports on interface modules as IRF physical interfaces, make sure the interface
modules at the two ends of a physical IRF link are the same type.
To use a fixed QSFP28 port on the rear panel of an S6850-2C member as an IRF physical
interface, you must make sure its IRF neighbor is also an S6850-2C switch. In addition, you
can connect that port only to a fixed QSFP28 port on the rear panel of the neighboring
S6850-2C switch.
