36
4.
Verify that the aggregate interface and its member ports are up:
a.
Execute the
display interface
command.
b.
Check the
current state
field of the aggregate interface:
−
If the field displays
DOWN ( Administratively )
, execute the
undo shutdown
command to
bring up the interface.
−
If the field displays
DOWN
, check the state of all its physical ports.
An aggregate interface goes down only if all its physical ports are down.
c.
Check the
current state
field of each member port:
−
If the field displays
DOWN ( Administratively )
, execute the
undo shutdown
command to
bring up the port.
−
If the field displays
DOWN
, check the physical link of the port for a link failure.
5.
If the intermediate device is also an IRF fabric, verify that the IRF domain IDs of the two IRF fabrics
are unique:
CAUTION:
The IRF member devices send extended LACPDUs with TLVs that convey the domain ID and the active
ID of the IRF fabric. For correct split detection, make sure the IRF fabric has a unique domain ID. False
detection causes IRF split.
a.
Execute the
display irf
command to identify the domain ID of each IRF fabric.
b.
If the IRF fabrics use the same domain ID, execute the
irf domain
command to change the
domain ID on one IRF fabric.
6.
If the physical ports in the link aggregation are down continually:
a.
Execute the
display trapbuffer
command or use system logs to check for port down events close
to the split time.
b.
Identify the cause of the event and remove the issue.
7.
If the problem persists, contact H3C Support.
Execute the
display diagnostic-information
command, save the diagnostic information, and
provide it to H3C Support.
<H3C> display diagnostic-information
Save or display diagnostic information (Y=save, N=display)? [Y/N]:Y
Related commands
This section lists the commands that you might use for troubleshooting IRF:
Command Description
display diagnostic-information
Displays or saves the operating statistics for multiple feature
modules.
display interface
Displays interface information.
display interface brief
Displays brief interface information.
display irf
Displays IRF fabric information, including the member ID, role,
priority, bridge MAC address, and description of each IRF
member.
