Bytes 2 and 3 following the sense code contain sense code specific
information.
- 0000
- No specific code applies.
- 0001
- The request has been forwarded by an excessive number of nodes
(for example, the count has been decremented at each node and has
reached zero) and, therefore, the request could not be delivered to
one or more destinations. Typically, this exception indicates that
one or more nodes have incorrectly routed or directed the request.
The exception might also indicate that the routing/directing count
was not appropriately initiated according to network size.