Does someone has already encountered the following ?
I have two routers CISCO2851 linked by microwave with E1 interface (VWIC2-2MFT-G703). I have too much CRC errors on both E1 interfaces when one of the routers is connected to LAN switch.
But if I cross connect a PC directly to the LAN port, no error occurs even if I load high traffic.
Is it possible that a LAN congestion on the switch could cause CRC errors on my E1 WAN interfaces ??
Some colleagues think that the switch might have an electrical problem passing electrical flow through the Ethernet copper cable, and cause router clocking unstable.
Any help is much appreciated.