How Do I Configure max_concurrent_streams for a Gateway?

cat>"stream-limit-envoyfilter.yaml"<<EOF
apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
  name: http2-stream-limit
  namespace: istio-system
spec:
  workloadSelector:
    labels:
      istio: ingressgateway
  configPatches:
  - applyTo: NETWORK_FILTER # http connection manager is a filter in Envoy
    match:
      context: GATEWAY
      listener:
        filterChain:
          filter:
            name: "envoy.filters.network.http_connection_manager"
    patch:
      operation: MERGE
      value:
        typed_config:
          "@type": "type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager"
          http2_protocol_options:
             max_concurrent_streams: 128
EOF

The max_concurrent_streams parameter indicates the maximum number of concurrent streams of a gateway. You can set this parameter as required.