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Specialized Models User Guide 6 MPLS Model User Guide
Modeler/Release 10.0 SPM-6-9
LSP Attributes
Some of the important LSP attributes are described below. Most of these
attributes can also be configured in the LSP browser, which is described in the
next section.
Figure 6-8 Configuring an LSP’s Attributes
• Directionality—specifies if an LSP is unidirectional or bidirectional. Dynamic
LSPs are always unidirectional.
• LSP Type—specifies whether the LSP is of type E-LSP or L-LSP. For
E-LSP, three experimental bits in the shim header carry the Diff-Serv
information. This provides eight different types of service (TOS) per LSP. For
L-LSP, TOS information is contained in the MPLS label and all packets
traversing the link are treated equally.
• Path Details—specifies which packets use the LSP and defines how
packets are forwarded through the LSP. This attribute is automatically
configured for dynamic LSPs. To configure this attribute for static LSPs,
select Update LSP Details from the Protocols > MPLS menu.
Figure 6-9 Path Details for a Static LSP
• Recovery Parameters—specifies recovery parameters that are used to
reroute traffic on this LSP if there is a link or node failure along the LSP.