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10 Posts


February 13th, 2023 21:00


Hi! Everyone

We use DS-300B * 2EA, which are tied together by ISL.

Simple information Firmware Version : 6.4.1 / ISL Port speed : 1G

I have a question here. If ISL's SFP Module needs to be replaced, can i just replace another SFP Moudle??

Does being bound by ISL mean that there is no need for special procedures??





6.9K Posts

February 14th, 2023 07:00

Hello Blackhamer,

When replacing an SFP, follow these steps:

1.       Disable the Port (Also disable the port when a SFP is in Faulted or Missing state).

2.       Replace the SFP

3.       Enable the Port

Once all steps are performed, the Port should work fine.

1 Rookie


20.4K Posts

February 14th, 2023 09:00

If it's an ISL, you might have to disable/re-enable the port on the other side of the ISL link.  Sometimes if the other side goes offline due to CRC/BitErrors have to "cycle" the port for the link to come back up.



3.7K Posts

February 14th, 2023 18:00

Hello, thanks for choosing Dell. In case this may help:






Connectrix: How to Interpret SFP Transceiver TX and RX Power Levels as Part of Troubleshooting the SFP Transceiver | Dell Singapore

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