strict digraph G {
  user [style=filled];
  subgraph cluster_resolver {
    graph [style=dashed][label=resolver];
    r_intranet [label=intranet];
    r_unicom [label=unicom];
  };
  subgraph cluster_escaper {
    graph [label=escaper];
    node [style=dotted];
    e_rt_domain [label="rt-domain"];
    e_rt_dstip [label="rt-dstip"];
    e_intranet [label=intranet];
    e_unicom [label=unicom];
    e_alisg [label=alisg];
    e_deny [label=deny];
    e_rt_domain -> e_rt_dstip [label=default];
    e_rt_domain -> e_deny;
    e_rt_domain -> e_intranet;
    e_rt_domain -> e_unicom;
    e_rt_domain -> e_alisg;
    e_rt_dstip -> e_unicom [label=default];
    e_rt_dstip -> e_deny;
    e_rt_dstip -> e_intranet;
  };
  subgraph cluster_server {
    graph [label=server];
    s_http [label=http];
    s_socks [label=socks];
  }
  subgraph cluster_path {
    graph [label=path];
    node [style=filled];
    intranet;
    unicom;
    alisg;
  }
  e_rt_dstip -> r_intranet [style=dashed][dir=both];
  e_intranet -> r_intranet [style=dashed][dir=both];
  e_unicom -> r_unicom [style=dashed][dir=both];
  s_http -> e_rt_domain;
  s_socks -> e_rt_domain;
  user -> s_http;
  user -> s_socks;
  e_intranet -> intranet;
  e_unicom -> unicom;
  e_alisg -> alisg;
  r_intranet -> intranet [dir=both];
  r_unicom -> unicom [dir=both];
}