I have 2 questions related to Inter Packet Gap in 100BASE-TX:
- During the IPG time (i.e. after Checksum is sent and Preamble of next frame is yet to be sent), what exactly is the activity on the "wire" ? Does the NIC remains idle by putting a signal representing bit "0" on the wire or is there a bit-pattern to represent this idle state in place of "0". If there is a pattern, what is it.
- The bits which are put on the wire during IPG time is decided by MAC layer or MII sublayer of the Physical layer ? (Please correct me if none of them do it)