VSS using singlemode and multimode on opposite sides

[Corey Wooley]

Just a question to see if anyone who had done this knew, but lets say I have Switch A, and it has 2 links(that are port channelled and 1 link each heads back to each side of the VSS).  I know it works fine with them both being Multimode or both being singlemode, but are there any issues with 1 side being Singlemode, and one being Multimode?  Will there be any sort of conflict with the systems and if so, is there a configuration way around it?  Just curious.

[Reza Sharifi]

Never done it, but curious what you are trying to archive.

If you are within the MM distance then use multimode if not SM.  SM optics are more expensive.

[Corey Wooley]

We have 6 pairs of multimode, and 6 pairs of singlemode coming back from a location, with 5 pairs of each being used, and I was wanting to see if the seperate types would work so something that was already plugged in wouldnt have to be rerun through the other type of fiber.

[Jon Marshall · Accepted solution]

Corey

I've never done it either but i can't see why it wouldn't work as etherchannel doesn't care about the physical media as long as the speeds are the same.

Jon