}
        }
      } else if (!isMultiplexed || e is ConnectionShutdownException) {
        noNewExchangesEvent = !noNewExchanges
        noNewExchanges = true

        // If this route hasn't completed a call, avoid it for new connections.
        if (successCount == 0) {
          if (e != null) {
            connectFailed(call.client, route, e)
          }
          routeFailureCount++
        }
      }