private void incrementCounter(ConnectionCloseType closeType, int port) {
        registry.counter(counterBaseId
                        .withTag("close_type", closeType.name())
                        .withTag("port", Integer.toString(port))
                        .withTag("protocol", "http2"))
                .increment();
    }
User: michaels@netflix.com
Date: 2/8/17
Time: 2:03 PM
zuul-core/src/main/java/com/netflix/netty/common/Http2ConnectionCloseHandler.java