Unknown
• Any TE that FOXMAN-UN NP does not recognize as a Circuit, Trail or SNC.
• Whenever an invalid construct is recognized, Unknown TEs are generated.
• Unknown are non-manageable TEs, i.e. the user cannot do anything with them.
The following provides an example of a valid end-to-end connection that is recognized as «Unknown» after a Matrix Connection (MC, cross connection) has been added to the network.
Valid end-to-end Path configuration
With the above network configuration the FOXMAN-UN NP recognizes a valid unidirectional TE which is protected.
The operator modifies Lausanne and creates a unidirectional cross connection which has a source connection point from the Circuit.
the network node in broadcast condition
Unknown TEs are generated so that FOXMAN-UN NP is aware of these non end-to-end connections.
Please note:
Unknown TEs are not manageable. Once an Unknown TE has been identified, the FOXMAN-UN NP operator is required to use the CST configuration tool in FOXMAN-UN BP to remove or to add cross-connections to get the end-to-end Paths. Due to the notification mechanism in FOXMAN-UN NP the change that is done in FOXMAN-UN BP will be reflected and will lead to the deletion of Unknown TEs.
In an ideal situation, there should be zero Unknown TEs in the database.