Mpls; 3.5 Service Creation Process Overview - Nokia 7302 Manual

FD 100/320Gbps NT and FX NT IHub Services Guide
A spoke SDP is treated like the equivalent of a traditional bridge "port" where flooded
traffic received on the spoke SDP is replicated on all other "ports" (other spoke and
mesh SDPs or SAPs) and not transmitted on the port it was received.
All mesh SDPs bound to a service are logically treated like a single bridge "port" for
flooded traffic where flooded traffic received on any mesh SDP on the service is
replicated to other "ports" (spoke SDPs and SAPs) and not transmitted on any mesh
SDPs.
SDP Encapsulation Types
The Nokia service model uses encapsulation tunnels through the core to
interconnect with service edge routers. An SDP is a logical way of referencing the
entrance to an encapsulation tunnel. The following encapsulation types are
supported: Layer 2 with LDP signaled.
3.4.3.2
Multi-Protocol Label Switching (MPLS) encapsulation has the following
characteristics:
•
•

3.5 Service Creation Process Overview

Figure
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MPLS

LSPs (label switched paths) are used through the network.These paths define
how traffic traverses the network from point A to B.
Paths can be manually defined or are based on the routing protocol (for example,
OSPF).
An ISAM supports both signaled LSPs and non-signaled LSPs through the
network.
•
Non-signaled paths are defined at each hop through the network.
•
Signaled paths are communicated via protocol
Because services are carried in encapsulation tunnels and an SDP is an entrance
to the tunnel, an SDP has an implicit maximum transmission unit (MTU) value.
The MTU for the service tunnel can affect and interact with the MTU supported on
the physical port where the SAP is defined.
4 displays the overall process to provision core and subscriber services.
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Services Overview
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