スイッチ かん通信 つうしんではありませんでした
suicchikan tsūshindewārimasendeshita

Noun
Desu Copula

The polite, past negative form of スイッチ間通信

1. Was not inter-switch communication.; Was not communicating between switches.

Past/Perfective
Negative
Polite
Formal Register
Computing