[weblacky]

I’ve not seen this before but I agree with Raion, please test from PROM, then from Irix. Don’t confuse them as being the same. If you can setup Ethernet in PROM and perform a TFTP get (watch with wireshark). Then it’s not a hardware issue.

The only my thing I can come up with is to either use Irix install media and boot the installer and try some Ethernet operations and also check your MTU. A frame that is larger than it’s supposed to be could cause what you’re seeing, but I assume you didn’t enable jumbo frames or a custom MTU in your dhcp server or something.

I’d try wireshark and watch for dhcp ack from the octane. If you’re getting an assigned address and your MAC isn’t corrupt then it sounds like a higher layer problem.

We’ve not had people come in and say the Ethernet ports are failing in Octanes. So this isn’t a thing we’ve seen specifically.

Also to be very clear, only Indy corrupts it’s MAC on NVRAM issues. No other SGI does that. So your real-time clock shouldn’t have any relation to Ethernet on an Octane.

Also O2/Octane chips with replacement coin cells are now available on tindie, but this RTCs aren’t hard to get.

Indy RTCs are next to impossible right now. I have an old drilling guide for Indy RTC. Each RTC can have different drilling position. Don’t mistake them.