cmd.Flags().StringSlice(optionNameBootnodes,nil,"initial nodes to connect to")
cmd.Flags().String(optionNameDebugAPIAddr,":6060","Debug HTTP API listen address")
cmd.Flags().Int(optionNameConnectionsLow,200,"low watermark governing the number of connections that'll be maintained")
cmd.Flags().Int(optionNameConnectionsHigh,400,"high watermark governing the number of connections that'll be maintained")
cmd.Flags().Duration(optionNameConnectionsGrace,time.Minute,"the amount of time a newly opened connection is given before it becomes subject to pruning")