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+====== SDK Script snmp-agent.are ======
+<code c snmp-agent.are>
+/* DESC: This script extends MIB entries of the SNMP agent
+ * Copyright (C) 2014 NetModule AG, Switzerland
+ */
+template entry {
+    name;
+    ext;
+    type;
+    mode;
+    int entry (string name, int ext, string type, string mode) {
+        /* register entry */
+        if (nb_snmp_register(name, ext, type, mode) < 0) {
+            nb_syslog("unable to register %s", name);
+            exit(1);
+        }
+        this.name = name;
+        this.ext = ext;
+        this.type = type;
+        this.mode = mode;
+        return 0;
+    }
+};
+cnt = 0;
+entries[cnt++] = new entry("ETH1_MAC",   1, "s", "ro");
+entries[cnt++] = new entry("ETH1_STATE", 2, "s", "rw");
+entries[cnt++] = new entry("ETH1_SPEED", 3, "i", "ro");
+entries[cnt++] = new entry("ETH2_MAC",   11, "s", "ro");
+entries[cnt++] = new entry("ETH2_STATE", 12, "s", "rw");
+entries[cnt++] = new entry("ETH2_SPEED", 13, "i", "ro");
+if (nb_snmp_link() != 0) {
+    nb_syslog("unable to link entries to agent");
+    exit(1);
+}
+nb_syslog("linked entries to snmp agent");
+while (1) {
+    /* wait 5s for any commits on our read-write entries */
+    e = nb_snmp_listen(5);
+    if (is_struct(e)) {
+        name = struct_get(e, "name");
+        value = struct_get(e, "value");
+        nb_syslog("%s has been set to %s", name, value);
+    }
+    /* update read-only entries */
+    status = nb_status("eth");
+    for (i = 0; i < cnt; i++) {
+        e = entries[i];
+        value = struct_get(status, e.name);
+        if (nb_snmp_update(e.name, value) != 0) {
+            nb_syslog("unable to update %s to %s", e.name, value);
+        } else {
+            nb_syslog("updated %s to %s", e.name, value);
+        }
+    }
+    sleep(1);
+}
+nb_snmp_unlink();
+nb_syslog("unlinked entries, terminating");
+exit(0);
+</code>

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