MTU 2048 bytes size?

[Cooky]

I'm trying to turn up an ethernet MPLS circuit, and Verizon claims they keep seeing input & CRC errors on the interface.

They set the MTU to 2048 bytes on both PE & CE interfaces.

Has anyone successfully turned up circuits w/ 2048 MTU before?

 

[spidey07]

Sure, and much higher. Sounds like physical layer.

 

[Cooky]

thanks.
We're having Sungard's remote hands doing some testing to isolate fault.
There's a media converter between PE & CE, so I'm hoping that's not the source of the errors.

 

[spidey07]

thanks.
We're having Sungard's remote hands doing some testing to isolate fault.
There's a media converter between PE & CE, so I'm hoping that's not the source of the errors.

That's most likely the cause. I hate those things with a passion. Boot both ends. Make sure your clocking is set correctly on them.

 

[Cooky]

That BlackBox miniature media converter was indeed the source of the errors.
After we replaced it w/ a more serious model, all errors went away.
http://www.omnitron-systems.com/products/8380_10100_iconverter.php

 

[RadiclDreamer]

That BlackBox miniature media converter was indeed the source of the errors.
After we replaced it w/ a more serious model, all errors went away.
http://www.omnitron-systems.com/products/8380_10100_iconverter.php

Black box makes great cables and racks (IMO) but their electronics have mostly sucked with a few exceptions.