What is the maximum MTU for Nintendo Switch?

I've heard the max size is around 7500MB, but if that's the case, it should be written somewhere.

Does anyone know anything about this? Thanks! Yes there are a few different ports for the N64, but in all cases except for Mame 64, it defaults to using either an ATA or SCSI interface (ie PATA or SATA). The maximum theoretical data transfer rate for the N64 is 2.4Gbps, but this only takes into account transfers of individual pixel tiles. If you're transferring full screens of data, it doesn't really matter what the transfer rate is as you're going to be running out of bandwidth regardless of the bit rate. Instead, the throughput of a single frame is more relevant to the question of what the N64 can run at and what framerate it can manage, assuming the user doesn't use any non-standard methods for video rendering.

The N64 is limited by the CPU to only being able to perform so many pixel tile transfers per second, and by the bus speed to being able to transfer so many bytes per second. The maximum number of frames it can display per second is therefore dependent on the two: Number of pixels per tile. Number of pixels transferred per tile. The first one depends on the internal resolution (the number of pixels per row) and whether it's been stretched (the number of rows). The latter one will vary depending on how much data is required to do one of these. For a 640x240 screen, a single 8-bit value occupies 40 bits, which means 40 pixels per transfer. I haven't had the chance to play with the internal clock speeds yet, so I don't know how many transfers are performed per tile, but it's probably somewhere between 15-25 in line with the specs quoted in another answer. With the default settings, the N64 is limited to 60fps, requiring 60 pixel transfers per frame.

It should be mentioned that the N64 supports resolutions outside the bounds of the internal native mode of 320x240 or 640x240 (for PAL and NTSC), but the actual max. Display resolution varies depending on the hardware used to drive the display. The N64, for example, can display a 1280x1024 display if it's interfaced to a DSP that can output in this mode.

What is the MTU of a switch?

Typically is it in the range of 40-100G.

That's a lot of bandwidth on a port. With a good NIC that will use a significant amount of processing and storage resources. As an example, you could see a 6G interface using 8GB/s of bandwidth. That's 4x8G (the most basic mode) plus 1 for the FCS and 2 for alignment, and 1 for each byte of VLAN/MAC header.

You're far better off connecting lots of smaller interfaces to your core and then aggregating them at the management interface. You could put the management switches under a single management VM, but I don't recommend that as it is hard to make VM aware of each other. (There's always the issue of IP aliasing, though.