iv>
<div class="ttc" id="aclassunified_packet_attr_html_a7f07aee281801515a545e7c1dcb266ef"><div class="ttname"><a href="classunified_packet_attr.html#a7f07aee281801515a545e7c1dcb266ef">unifiedPacketAttr::ttl</a></div><div class="ttdeci">uint8_t ttl</div><div class="ttdoc">生存时间（Time To Live）</div><div class="ttdef"><b>Definition</b> unifiedPacketAttr.h:57</div></div>
<div class="ttc" id="aclassunified_packet_attr_html_aa1784b177225f83a16b39095a6f5a75d"><div class="ttname"><a href="classunified_pa