cat6man Posted March 12, 2020 Share Posted March 12, 2020 2 hours ago, jabbr said: I don’t have a Cisco 2960 but presumably JS could test this against the EtherREGEN and show us if the DAC clock has less jitter. There are SMPS and there are SMPS ... I’m saying that the Mellanox SMPS obviously causes <60 femtosecond jitter in the 100Gbe switch ... and they are at 400Gbe so imagine how low jitter those systems are and yet still powered by SMPS wish i had a 100Gbe switch :) is there a similar jitter spec that 1Gb and 100Mb switches must meet? does anyone know what typical Fios router/switches have for jitter? and to follow up on superdad's comment above, does the ASR's a/d converter really have a 600ns jitter spec and, if so, does that invalidate the ASR measurements of jitter? Link to comment
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