Frame Relay-To-Atm Interworking (Frf.5) Vll; Figure 41: Frame Relay-To-Atm Network Interworking (Frf.5) Vll - Alcatel-Lucent 7750 SR Manual

Frame Relay-to-ATM Interworking (FRF.5) VLL

(FR-ATM Network
Interworking- FRF.5)
CE1
FR
ATM1
UNI
IP/IPX/SNA
RFC2427
B-PDU/R-PDU
FR

Figure 41: Frame Relay-to-ATM Network Interworking (FRF.5) VLL

Figure 41
user is connected to an existing ATM network, the other to a 7750 PE node on an IP/MPLS
network.
This VLL is realized using an ATM AAL5 SDU pseudowire between the 7750 SR PE nodes. It is
configured by adding a FR SAP to an apipe service using vc-type atm-sdu. The 7750 SR PE2 node
performs an FRF.5 interworking function to interwork the ingress and egress data paths in addition
to the operations required in an FR and an ATM VLL.
The pseudowire is initiated using Targeted LDP signaling as specified in draft-ietf-pwe3-control-
protocol-xx.txt. The SDP can be of an MPLS or a GRE type.
7750 SR OS Services Guide
ATM2
PVC/SPVC
ATM ATM3
IP/IPX/SNA
RFC2427
B-PDU/R-PDU
FR SSCS
AAL5 ATM
provides an example of a point-to-point Frame Relay service between users where one
APS Protected
Links
7750 SR
PE 1
IP/MPLS
IP/IPX/SNA
RFC2427
B-PDU/R-PDU
FR SSCS
AAL5 ATM
Virtual Leased Line Services
FRF.5
Interworking
7750 SR
ATM AAL5 SDU PW
PE 2
IP/IPX/SNA IP/IPX/SNA
RFC2427 RFC2427
B-PDU/R-PDU B-PDU/R-PDU
ATMoMPLS
MPLS
POS/GigE
Page 203
CE2
FR
UNI
FR
OSSG070