define noisy block-check 2, send packet-length 60, retry packet 10
define very-noisy block-check 3, send packet-length 40, retry packet 20
define clean block-check 1, send packet-length 94, retry packet 5
define notimeout send timeout 0, receive timeout 0
define telenet parity mark, receive timeout 20
define ibm parity mark, duplex half, handshake xon, send packet-len 80
define unix parity none, duplex full, handshake none
define micro parity none, duplex full, handshake none
set escape 37