Symbol: SMBTP_KEEPALIVE
usr/src/uts/common/fs/smbclnt/netsmb/smb_iod.c
1471
err = SMB_TRAN_SETPARAM(vcp, SMBTP_KEEPALIVE, &val);
usr/src/uts/common/fs/smbclnt/netsmb/smb_trantcp.c
844
case SMBTP_KEEPALIVE: // SO_KEEPALIVE