ISDN Line trouble: MPH_EI2_IND message

[lavella]

Hi,

I have a customer that has some strange problems on a ISDN Line, attached to a Cisco 1751.

Does anyone has some idea about the meaning of the "MPH_EI2_IND" message?

Thanks,

Leonardo

00:11:33: ISDN BR1/0: L1 ERR IF_ACTIVE

00:11:33: ISDN BR1/0: Recvd MPH_EI2_IND from L1

00:11:48: ISDN BR1/0: Recvd MPH_EI1_IND from L1

00:11:50: ISDN BR1/0: L1 is IF_ACTIVE

00:11:50: ISDN BR1/0: Recvd MPH_EI2_IND from L1

[mljohnson]

It usually means a layer 1 issue; that the line is going in and out of sync (IF_ACTIVE). You may want to chech the physical layer, in addition to the NT config and port.