L2tp architecture, Tunnel and session, Control message and data message – H3C Technologies H3C SecPath F1000-E User Manual

H3C SecPath F5000-A5 Firewall, H3C SecPath F1000-A-EI, H3C SecPath F1000-E-SI, H3C SecPath F1000-S-AI, H3C SecPath F5000-S Firewall, H3C SecPath F5000-C Firewall, H3C SecPath F100-C-SI, H3C SecPath F1000-C-SI, H3C SecPath F100-A-SI, H3C SecBlade FW Cards, H3C SecBlade FW Enhanced Cards, H3C SecPath U200-A U200-M U200-S, H3C SecPath U200-CA U200-CM U200-CS