Frame Format

• Address

• • Always 0xFF (1 byte)

• Control

• • Always 0x03 (1 byte)

• Protocol

• • Protocol type that appears in the information field (2 bytes)

• Information

• • The encapsulated frame or packet (length varies)
  • E.g., an IP packet

• CRC

• • Cyclic redundancy check for error detection (2 bytes)