Filter
Top Products
Frame Format
6-3
Transmitting and Receiving Frames
6.1.2 Transmit (Tx) Frame Format
The adapter transmit channels are used to transmit frames to other nodes on
the network. The ThunderLAN adapter allows transmitted frame data to be
fragmented into up to ten pieces. However, the adapter expects the conca-
tenation of these fragments to be in a consistent, logical format as shown be-
low. This logical format is different for token ring and Ethernet frame formats.
Figure 6–3. Token Ring Logical Frame Format (Tx)
18 bytes (max)
6 bytes
6 bytes
1 byte
1 byte
Data
Routing field (optional)
Source address
Destination address
FC
AC
Figure 6–4. Ethernet Logical Frame Format (Tx)
3 to 4 bytes
2 bytes
6 bytes
6 bytes
Data
LLC_header (optional)
Length/type
Source address
Destination address