Network Router User Manual

122 Diagnostics & Troubleshooting

FRN (Fast Rate Negotiation) Granted (FG)

The count of the granting of the remote modem's change rate

(FRN) requests. Each request is an indicator of a changed receiving

condition.

FRN Request (FR)

The count of the local modem's requests to change the rate.

Block Retransmitted (BR)

The count of the blocks retransmitted (bad reception on the remote

modem).

FCS (Frame Check Sum) Errors (FE)

The count of the FCS errors received (block errors) (bad reception

on the local modem).

Link Status Report (ATI2)

During a connection, the modem will record information about link

operations. You can use the AT command ATI2 to see the

summary, as show in the sample below:

ZyXEL U-MODEM LINK STATUS REPORT

Chars Sent 2420

Chars Received 2420

Octets Sent 950

Octets Received 950

Blocks Sent 13

Blocks Received 13

Blocks Resent 0

Max Outstanding 8

Max Block Size 256