UniData Communication Systems WPU-7700 Administrator's Manual page 27

2. TCP/IP status (Connection of TCP/IP)
GW: connection to Gateway
WAN: connection to WAN
3. Result to PER (Packet Error Rate)
PER to GW: packet error rate to GW. PER test to Gateway (ping to GW per 20ms period, 100 units)
PER to DNS: packet error rate to DNS. PER test to DNS1 (ping to DNS1 per 20ms period, 100 units)
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