optichub40

Netherlands joined 3 months ago 2 questions 16 comments

Optical transport specialist from Rotterdam. Mostly Cisco and Juniper.

Questions

3votes

1 answer

133views

Which transceivers still link on an Aruba 8360-32Y4C when the interface group is forced to 50g

We are bringing up a pair of 8360-32Y4C as leaves and the downlink plan is deliberately mixed: mostly 25G to servers, a couple of 50G ports to a compute chassis, and a few slow copper drops for out-of-band gear. Because the SFP56 downlinks are grouped and the speed is set per group, I want to…

optichub40 NL asked 21 days ago

4votes

4comments

84views

Reading and rewriting SFP EEPROM over the Raspberry Pi I2C bus instead of buying a programmer

I keep a shelf of pulled SFPs at home and I would like to be able to read their EEPROM, repair a module whose checksum got mangled, and occasionally recode one for a switch that is picky about vendor strings. Buying a commercial programmer for a handful of modules a year makes no sense here, so I…

Checksum EEPROM I2C Programmer raspberry-pi

optichub40 NL asked 22 days ago