▄ Cisco ASR 5000 Series Product Overview 
  Network Layer: IPv4, IPv6 
  Data Link Layer: ARP 
  Physical Layer: Ethernet 
 
P-GW Gz OFCS
L1/L2
GTPP
IPv4 / IPv6
L1/L2
IPv4 / IPv6
TCP TCP
GTPP
 
 
Rf Interface 
The Rf reference interface enables offline accounting functions on the P-GW in accordance with 3GPP Release 8 
specifications. The P-GW collects charging information for each mobile subscriber UE pertaining to the radio network 
usage. 
Supported protocols: 
 
  Transport Layer: TCP 
  Network Layer: IPv4, IPv6 
  Data Link Layer: ARP 
  Physical Layer: Ethernet 
 
P-GW Rf OFCS
L1/L2
Diameter
IPv4 / IPv6
L1/L2
IPv4 / IPv6
TCP TCP
Diameter