Types of Protection
This section provides an overview of the three different types of protection schemes.
Protection can be broken into
Path protection (sometimes called end-to-end protection)
Local protection, which can be broken into two types:
- Link protection
- Node protection
Path Protection
Path protection is not currently available on Cisco routers. It is provided here for the sake of completeness and is not discussed further in this chapter. It is, however, discussed again in Chapter 9, “Network Design with MPLS TE,” where the scalability of path protection is compared with that of link and node protection.
Path protection is essentially the establishment of an additional LSP in parallel with an existing LSP, where the additional LSP is ...
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