Defining SNA Switching Link
From the SNA Service screen (Configure -> WAN/Data Services -> SNA), click on Switching Link at the top of the screen. You will see the SNA Switching Link screen listing the current configurations, like the following (example screens shown are from Passport 4460 units):
Click on Modify next to the SDLC port whose data link switching configuration you want to define. You will see the Modify SNA Switching Link Entry screen with the current parameters, like the following example:
| Parameter | Range of Values | Default Value | Required Action |
|---|
| Local MAC Address | MAC address (size 0 | 12) | none | Enter the MAC address for the local link station. The MAC address is used only by the Passport unit for transporting SNA traffic across the network. It has no relationship to IP or other network protocols. The MAC address entered must be unique within the network. |
| Local SAP | SAP (00 to FF hexadecimal) | 04 | Enter the SAP used to represent this link station. |
| Remote MAC Address | MAC address (size 0 | 12) | none | Enter the MAC address of the remote end to which this link station is to be connected. The MAC address is used only by the Passport unit for transporting SNA traffic across the network. It has no relationship to IP or other network protocols. If the address is not available, enter 0. The remote MAC address must be configured only for the Passport 4400 unit that initiates the SNA session. The MAC address entered must be unique within the network. |
| Remote SAP | SAP (00 to FF hexadecimal) | 04 | Enter the SAP of the remote end to which this link station is to be connected. If the SAP is not available, enter 0. Remote SAP must be entered only if a Remote MAC Address is entered. |
| Proxy XID | Proxy XID (size 8) | 00:00:00:00 | Enter the Proxy XID to be used for the secondary link station, in the form of a MAC address (nn:nn:nn:nn).
- Configure Proxy XID only at primary Passport 4400 units. Secondary units should be set to 00:00:00:00 (the default value).
- When Proxy XID is configured, the Passport 4400 unit will respond to XID requests from an SNA host. When Proxy XID is not configured, the Passport 4400 unit will poll the link station for the XID and pass on the response to the SNA host.
- To erase a previously configured Proxy XID, enter 00:00:00:00.
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Click on the Save button to save any changes you have made. Then, reset the unit. (Select Administration and System Reset from the navigation menu. Select Configuration as the Reset Type. Then, click on the Reset button.)
End of procedure.
