Alcatel-Lucent 7750 Reference Manual page 241

Table 81: RADIUS CoA message [101] Error-Cause values (Continued)
Code CoA Error Cause
502 Request Not Routable
(Proxy)
503 Session Context Not
Found
504 Session Context Not
Removable
505 Other Proxy Processing
Error
506 Resources Unavailable
507 Request Initiated
508 Multiple Session
Selection Unsupported
7750 SR RADIUS Attributes Reference Guide
Request Not Routable is a fatal error that MAY be sent by a proxy
and MUST NOT be sent by a NAS. It indicates that the proxy was
unable to determine how to route a CoA-Request or Disconnect-
Request to the NAS. For example, this can occur if the required
entries are not present in the proxy's realm routing table.
Session Context Not Found is a fatal error sent if the session context
identified in the CoA-Request or Disconnect-Request does not exist
on the NAS.
Session Context Not Removable is a fatal error sent in response to a
Disconnect-Request if the NAS was able to locate the session
context, but could not remove it for some reason. It MUST NOT be
sent within a CoA-ACK, CoA-NAK, or Disconnect-ACK, only
within a Disconnect-NAK.
Other Proxy Processing Error is a fatal error sent in response to a
CoA or Disconnect-Request that could not be processed by a proxy,
for reasons other than routing.
Resources Unavailable is a fatal error sent when a CoA or
Disconnect-Request could not be honored due to lack of available
NAS resources (memory, non-volatile storage, etc.).
Request Initiated is a fatal error sent by a NAS in response to a CoA-
Request including a Service-Type Attribute with a value of
Authorize Only. It indicates that the CoA-Request has not been
honored, but that the NAS is sending one or more RADIUS Access-
Requests including a Service-Type Attribute with value Authorize
Only to the RADIUS server.
Multiple Session Selection Unsupported is a fatal error sent by a
NAS in response to a CoA-Request or Disconnect-Request whose
session identification attributes match multiple sessions, where the
NAS does not support Requests applying to multiple sessions.
RADIUS Attributes Reference
Description SR OS
No
Yes
No
No
Yes
No
No
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