struct ofpbuf *
set_config(enum ofputil_protocol proto)
{
struct ofputil_switch_config sc;
memset(&sc, 0, sizeof(sc));
sc.frag = OFPUTIL_FRAG_NORMAL;
// sc.invalid_ttl_to_controller is for only OFP11 and OFP12
sc.miss_send_len = 128; // The default of OpenFlow Spec
return ofputil_encode_set_config(
&sc, ofputil_protocol_to_ofp_version(proto));
}
static void
send_features_request(struct lswitch *sw)
{
struct ofpbuf *b;
int ofp_version = rconn_get_version(sw->rconn);
ovs_assert(ofp_version > 0 && ofp_version < 0xff);
/* Send OFPT_FEATURES_REQUEST. */
b = ofpraw_alloc(OFPRAW_OFPT_FEATURES_REQUEST, ofp_version, 0);
queue_tx(sw, b);
/* Send OFPT_SET_CONFIG. */
struct ofputil_switch_config config = {
.miss_send_len = OFP_DEFAULT_MISS_SEND_LEN
};
queue_tx(sw, ofputil_encode_set_config(&config, ofp_version));
}