Types of Ethernet frames sent

The Ethernet frame that your system receives and the Ethernet standard that you select in the line description govern the type of frame that your system sends.

In the line description, you select the standard through the Ethernet standard (ETHSTD) field. In an SNA environment, if you have the option to use Ethernet standard IEEE 802.3 or Ethernet version 2, use *ALL.

The following table shows what Ethernet frame your system sends according to the frame type the system receives and the value of the ETHSTD field. As noted, your system will not send a frame in some cases.

Frame type received ETHSTD value Frame type sent
IEEE 802.3 with SNA or non-SNA data *IEEE80231 IEEE 802.3
*ETHV22 No frame sent
*ALL3 IEEE 802.3
Ethernet version 2 with non-SNA data *IEEE8023 No frame
*ETHV2 Ethernet version 2
*ALL Ethernet version 2
Ethernet version 2 with SNA data *IEEE8023 IEEE 802.3
*ETHV2 Ethernet version 2, encapsulated SNA4
*ALL IEEE 802.3
Notes:
  1. The network uses Ethernet standard IEEE 802.3.
  2. The network uses Ethernet version 2. In an SNA environment, you use this protocol for only IBM i to IBM i communications.
  3. The network uses both Ethernet standards (IEEE 802.3 and Ethernet version 2). All TCP/IP multicast packets are sent as 802.3 and Ethernet version 2 frames.
  4. The type field of the Ethernet version 2 frame to indicate the information field contains the SNA data.