chains := make([]*listener.FilterChain, 0, 2)
	chains = append(chains, blackholeFilterChain(push, node), &listener.FilterChain{
		Name:    model.VirtualOutboundCatchAllTCPFilterChainName,
		Filters: filterStack,
	})
	return chains
}

func blackholeFilterChain(push *model.PushContext, node *model.Proxy) *listener.FilterChain {
	return &listener.FilterChain{