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3.1.7 Path Error Messages Connected: An Internet Encyclopedia
3.1.7 Path Error Messages

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3.1.7 Path Error Messages

3.1.7 Path Error Messages

PathErr (path error) messages report errors in processing Path messages. They are travel upstream towards senders and are routed hop-by-hop using the path state. At each hop, the IP destination address is the unicast address of a previous hop. PathErr messages do not modify the state of any node through which they pass; they are only reported to the sender application.

           <PathErr message> ::= <Common Header> [ <INTEGRITY> ]

                                      <SESSION> <ERROR_SPEC>

                                      [ <POLICY_DATA> ...]

                                     [ <sender descriptor> ]

           <sender descriptor> ::= (see earlier definition)

The ERROR_SPEC object specifies the error and includes the IP address of the node that detected the error (Error Node Address). One or more POLICY_DATA objects may be included message to provide relevant information. The sender descriptor is copied from the message in error. The object order requirements are as given earlier for a Path message, but the above order is recommended.

Next: 3.1.8 Resv Error Messages

Connected: An Internet Encyclopedia
3.1.7 Path Error Messages


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