Upgrade ION 9000 firmware.
When a physical ION 9000 device is running
with ports 9, 10, and 11 connected (no SFP+ inserted in port 12),
after you unplug either of the ports 9, 10 or 11 or configure Admin
Down or Admin Up, the ports 9,
10, 11 start flapping indefinitely. This issue is applicable on
image versions ION-5.4.x and ION-5.5.1.
It
is recommended to always begin with port 12 as the first connected
port on ION 9000 to avoid this issue. With a 10G SFP inserted on
port-12, this issue will not occur.
During the
upgrade duration, the interfaces 9-12 will be down and there will
be no traffic on these ports. Interfaces 1-8 and 13-16 will be up.
It is recommended to upgrade the firmware during the maintenance
window.