Information About Implementing Mpls Transport Profile - Cisco ASR 9000 Series Configuration Manual

Information About Implementing MPLS Transport Profile

• BFD over pseudowire is not supported. Static pseudowire OAM protocol is used to signal fault on static
• Only Ethernet pseudowire type is supported.
Information About Implementing MPLS Transport Profile
To implement MPLS-TP, you should understand these concepts:
MPLS Transport Profile
MPLS Transport Profile (TP) enables you to create tunnels that provide the transport network service layer
over which IP and MPLS traffic traverse. MPLS-TP tunnels enable a transition from Synchronous Optical
Networking (SONET) and Synchronous Digital Hierarchy (SDH) time-division multiplexing (TDM)
technologies to packet switching, to support services with high bandwidth utilization and low cost. Transport
networks are connection oriented, statically provisioned, and have long-lived connections. Transport networks
usually avoid control protocols that change identifiers like labels. MPLS-TP tunnels provide this functionality
through statically provisioned bidirectional label switched paths (LSPs). This figure shows the MPLS-TP
tunnel:
Figure 22: MPLS Transport Profile Tunnel
MPLS-TP combines the necessary existing capabilities of MPLS with additional minimal mechanisms in
order that it can be used in a transport role. You can set up MPLS-TP through a CLI or a network management
system.
MPLS-TP tunnels have these characteristics:
• An MPLS-TP tunnel can be associated with working LSP, protect LSP, or both LSP
• Statically provisioned bidirectional MPLS-TP label switched paths (LSPs)
• Symmetric or asymmetric bandwidth reservation
• 1:1 path protection with revertive mode for MPLS-TP LSP with revertive mode for MPLS-TP LSP
Cisco ASR 9000 Series Aggregation Services Router MPLS Configuration Guide, Release 4.3.x
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pseudowire placed over TP tunnels using pseudowire status.
Implementing MPLS Transport Profile
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