8320 with 10Gb uplink towards 2930M stack, 2930F
02-09-2020 01:37 PM
we are trying to design small campus network around 2x8320 as redundant core with few access switches connected to it over MM FO, 10Gbps.
However, looks like 40Gb ports on 8320 can be brought down to 10Gb with adapter as it is possible on 5710. Any other ideas around this?
Small slide attached.
Re: 8320 with 10Gb uplink towards 2930M stack, 2930F
02-18-2020 11:57 AM
The QSFP+ ports on the 8320 switch series only operate at 40Gbps — there is no way to operate them at 10Gbps with an adapter or transceiver.
If you are using the 48-port 1G/10GBASE-T 8320 model to connect to a 2930M switch or stack, you can use JL078A QSFP+ uplink modules to connect them directly to the 8320's QSFP+ ports at 40G via optical fiber or DAC cables. For 2930F switches, you would need to use 1Gbps copper ports for uplinks to a 1G/10GBASE-T model 8320. (10G RJ45 transceivers are not supported in the 2930F switch series.)
An alternative would be to use 48-port SFP/SFP+ 8320 models with 1G or 10G RJ45 transceivers for downlinks to devices without SFP/SFP+ ports, and optical transceivers or DAC cables for all other connections.