Re: [Beowulf] fdr in edr switch

2021-03-02 Thread pankajd
Yes, we have connected fdr card to edr . I requires fdr cables. It worked without issue. you will get fdr bandwidth. - pankajd On March 2, 2021 at 12:36 AM Russell Dekema wrote: > As long as the EDR switch is running production (non-prerelease) > firmware, this should work fine. We have many QD

Re: [Beowulf] fdr in edr switch

2021-03-02 Thread Ryan Novosielski
We have FDR switches uplinked into an EDR switch. Works fine, but you should be using FDR cables. -- #BlackLivesMatter || \\UTGERS, |---*O*--- ||_// the State | Ryan Novosielski - novos...@rutgers.edu

Re: [Beowulf] [EXT] fdr in edr switch

2021-03-02 Thread Schmidtmann, Carl
I have doe the opposite - an fdr switch to edr card. The only caveat is that it needs to be an fdr cable. An edr cable between fdr and edr does not work. Carl Carl Schmidtmann Center for Integrated Research Computing University of Rochester > On Mar 1, 2021, at 2:02 PM, Michael Di Domenico

Re: [Beowulf] fdr in edr switch

2021-03-02 Thread Russell Dekema
As long as the EDR switch is running production (non-prerelease) firmware, this should work fine. We have many QDR and FDR cards connected to EDR switches in our production environment at work. Cheers, Rusty Dekema On Mon, Mar 1, 2021 at 2:03 PM Michael Di Domenico wrote: > > has anyone plugged

Re: [Beowulf] fdr in edr switch

2021-03-02 Thread Paul Edmon
We haven't had any problems with plugging FDR stuff into and EDR switch.  It does downgrade the connections but still works. -Paul Edmon- On 3/2/2021 6:44 AM, Darren Wise wrote: Heya, I do very much the same QSFP28-EDR 100G adapter cards into QSFP+-FDR 56G just with the use of a cable. I eve

Re: [Beowulf] fdr in edr switch

2021-03-02 Thread Darren Wise
Heya, I do very much the same QSFP28-EDR 100G adapter cards into QSFP+-FDR 56G just with the use of a cable. I even QSFP+-FDR to 4x SFP+-10G using various brocade, mellanox, chelsio hardware and have never come out worse. Some cables can be a bit funny but I have never had issues with cables br

Re: [Beowulf] [EXT] fdr in edr switch

2021-03-02 Thread Tina Friedrich
Hi Michael, for what it's worth... Although this sort of thing always makes me nervous, as well, it really should not cause trouble - whilst I haven't yet uplinked FDR into EDR as such I've done pretty much all of DDR into QDR, (QLogic) DDR & QDR into (Mellanox) FDR, Mellanox EDR into a TrueS