Cisco Cisco Packet Data Gateway (PDG) Documentation Roadmaps
Serving Gateway Overview
▀ Network Deployment(s)
▄ Cisco ASR 5000 Series Product Overview
OL-22937-01
Tunneling:
GTP: IPv4 or IPv6 GTP-C (signaling channel) and GTP-U (bearer channel)
Network Layer: IPv4, IPv6
Data Link Layer: ARP
Physical Layer: Ethernet
S-GW
S5/S8 (GTP)
P-GW
L1/L2
GTP-C/U
IPv4 / IPv6
IPv4 / IPv6
Transport
L1/L2
IPv4 / IPv6
IPv4 / IPv6
Transport
UDP
UDP
GTP-C/U
S1-U Interface
This reference point provides bearer channel tunneling between the eNodeB and the S-GW. It also supports eNodeB
path switching during handovers.
path switching during handovers.
Supported protocols:
Transport Layer: UDP, TCP
Tunneling: IPv4 or IPv6 GTP-U (bearer channel)
Network Layer: IPv4, IPv6
Data Link Layer: ARP
Physical Layer: Ethernet