FD 100/320Gbps NT and FX NT IHub Services GuideIssue: 13 3HH-11985-AAAA-TQZZA 23List of figures3 Services Overview ........................................................................45Figure 1 Service Entities..........................................................................................48Figure 2 Service Access Point (SAP) ......................................................................49Figure 3 SDP ...........................................................................................................50Figure 4 Service Creation and Implementation Flow...............................................52Figure 5 Ring in the initial state ...............................................................................65Figure 6 Ring in the protection state........................................................................66Figure 7 DHCP Lease Query...................................................................................71Figure 8 Tunnels using GRE-IPv4 encapsulation....................................................724 Virtual Leased Line Services .....................................................107Figure 9 Epipe/VLL Service ...................................................................................108Figure 10 Pseudo wire.............................................................................................109Figure 11 SDP Statistics for VPLS and VLL Services .............................................110Figure 12 SDPs — Uni-Directional Tunnels ............................................................1165 Virtual Private LAN Service .......................................................157Figure 13 ISAM residential and regular access ports ..............................................158Figure 14 ISAM network topology for VPLS ............................................................160Figure 15 NT v-VPLS forwarding.............................................................................161Figure 16 VPRN IP interface reach extension using v-VPLS ..................................161Figure 17 NT VPLS Implementation ........................................................................163Figure 18 VPRN and v-VPLS virtual port interconnection model ............................165Figure 19 SAPs and virtual port object model .........................................................165Figure 20 VPLS service architecture .......................................................................171Figure 21 Access Port Ingress Packet Format and Lookup ....................................171Figure 22 Network Port Egress Packet Format and Flooding .................................172Figure 23 Access Port Egress Packet Format and Lookup .....................................173Figure 24 Management model.................................................................................180Figure 25 Configurable TPID ...................................................................................183Figure 26 External Packet Forwarding ....................................................................184Figure 27 Uni-Directional Tunnels ...........................................................................215Figure 28 BGP-AD and T-LDP Interaction...............................................................225Figure 29 BGP VPLS Solution.................................................................................227Figure 30 BGP AD Configuration Example..............................................................234Figure 31 BGP VPLS Example................................................................................237Figure 32 BGP AD Triggering LDP Functions .........................................................2397 Virtual Private Routed Network Service ...................................421Figure 33 Virtual Private Routed Network ...............................................................422Figure 34 Conceptual Diagram................................................................................4248 Mirror Services............................................................................611Figure 35 Local Mirroring Example..........................................................................613Figure 36 Local Mirrored Service Tasks ..................................................................615