Avanti supports both DE435 and DE500 virtual NICs.  Versions of OpenVMS prior to 7.2 are not fully compatible with the DE500.  It is recommended to use the DE435 with versions of VMS prior to VMS 7.2.

If using the DE500 with a version of VMS prior to 7.2, do the following:

•Use the DE500 21143 NIC definition in the Avanti configuration file.

•Insert the following code into SYSTARTUP_VMS.COM to work around the compatibility issues and to bring up DECnet and TCP/IP services.

$ @SYS$MANAGER:STARTNET.COM        !Start DECnet
$ MC NCP SET EXEC STAT OFF        !Shut down DECnet
$ WAIT 00:00:10                        !Pause 10 seconds*
$ @SYS$MANAGER:STARTNET.COM        !Restart DECnet
⁞
$ @SYS$STARTUP:UCX$STARTUP.COM        !Start TCP/IP services

*Failure to pause long enough may result in a NETNOSTATE bug check