Hello,

Our WAN vendor is going to be upgrading their edge switch and installing a 100GbE transceiver with port speed set at 40Gb, which is what the S4048 can accommodate.

Question is, do the rated transceiver speeds need to match?  Meaning, should the two transceivers both be 40GbE?  Of course the mode and wavelength need to be the same.  Normally we pair them so they match, but were told that it doesn't matter as long as the S4048 has a Dell qualified 40GbE SFP+ and set to auto negotiate.

Thanks in advance for clarifying.