div></nav></article><nav class=pagenav><div class=left><a title="This task shows you how to configure Istio to collect metrics for TCP services." href=/v1.6/docs/tasks/observability/metrics/tcp-metrics/><svg class="icon"><use xlink:href="/v1.6/img/icons.svg#left-arrow"/></svg>Collecting Metrics for TCP Services</a></div><div class=right><a title="This task shows you how to improve telemetry by grouping requests and responses by their type." href=/v1.6/docs/tasks/observability/metrics/classify-metrics/>Class