AGM731F had to be reseated after a power outage.

Question

We have 2&nbsp;M4300-52G-PoE+ ProSAFE 48-port 1G PoE+ and 2-port 10GBASE-T and 2-port 10G SFP+ switches, both with a AGM731F SFP Transceiver in port 52 on each.&nbsp; After a power outage, we always have to reseat these transceivers in order to get them back online.&nbsp; Is this normal?&nbsp; Is there a way to prevent this?&nbsp;&nbsp;

GWieder · Answer

Is there a fix in resulting from updating the firmware?&nbsp;The purpose of the LAG from both transceivers on the stacked switch is to increase the bandwidth to our server room.&nbsp;&nbsp;

schumaku · Answer

Definitively not a normal operation procedure.
&nbsp;
What firmware is installed and active on these&nbsp;M4300-52G?
&nbsp;
Intentionally deployed 1000BASE-SX SFP? Are these used for the direct connection of these two switches? Or are the other&nbsp;2-10GBASE-T ports configured into a lag somehow?

GWieder · Answer

The firmware is:&nbsp;&nbsp;12.0.0.15

schumaku · Answer

Intentionally deployed 1000BASE-SX SFP? 
Are these used for the direct connection of these two switches? 
Or are the other&nbsp;2-10GBASE-T ports configured into a lag somehow?

GWieder · Answer

The 2 M4300 switches are stacked using ports 51 on both, with the AXC761transceivers and the connector cable.&nbsp;Ports 52 on both M4300 switches have the AGM731F transceivers and are members of Lag 1, connecting OM3 fiber to our top of rack switches in our server room.&nbsp;Whenever we loose power for a long enough time that the UPS times out and these switches shutdown, when the power is eventually restored, both AGM731F transceivers are not responsive with no link or activity shown on them.&nbsp; I then have to disconnect each one, pull them out and push them back in, and reconnect the fiber connections to get them to come back up.&nbsp; Would really like to figure out how to prevent this from happening, so that when power is restored, they come back online on their own.

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AGM731F had to be reseated after a power outage.

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