Pex Joining Eirf System Failure; Symptom - HPE FlexNetwork 10500 SERIES Troubleshooting Manual

If the intermediate device does not support extended LACPDUs for MAD, replace the
intermediate device, or use BFD MAD for split detection.
2. Verify that each member chassis has a link in the link aggregation with the intermediate device.
3. Verify that the link aggregation is operating in dynamic mode.
To enable dynamic aggregation mode, use the link-aggregation mode dynamic command.
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
− If the field displays DOWN, check the state of all its physical ports.
c. Check the current state field of each member port:
− If the field displays DOWN ( Administratively ), execute the undo shutdown
− 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. To avoid split detection failure, make sure the IRF fabric has a
unique domain ID.
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. Verify that the physical ports in the link aggregation are always up:
a. Execute the display trapbuffer command or use system logs to check for port-down events
around the split time.
b. Identify the event cause and remove the issue.
7. If the problem persists, contact Hewlett Packard Enterprise Support.

PEX joining eIRF system failure

Symptom

A device fails to join an eIRF system as a PEX.
command to bring up the interface.
An aggregate interface goes down only if all its physical ports are down.
command to bring up the port.
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