Pseudowire
PW1
Emulated
Service
Native Service
(Attachment
Circuit)
T-PE1
T-PE2
Native Service
(Attachment
Circuit)
S-PE1
CE1
CE2
TP-LSP
PW.Seg t3
PW.Seg t1
PW.Seg t2
PW.Seg t4
TP-LSP
MPLS-TP
Security Reference Model 1
Model 1: single SP scenario
Model 1a (Not shown): SS-PW within single trusted
zone.
Model 1b: MS-PW within single trusted zone (as shown)
Trusted
Zone
Untrusted
Zone
Untrusted
Zone