State Machine of the Neighbor Cache Entry by NS
NS vs NONCE
| Destination |
SLL Option |
New State |
LLA Cache |
NOTE |
| Unicast |
None |
NONCE or INCOMPLETE |
Unchanged |
Not mentioned in RFC2461 |
| Unicast |
Exist |
STALE |
Updated |
Reference |
| Multicast |
Exist |
STALE |
Updated |
Reference |
NS vs INCOMPLETE
| Destination |
SLLA option |
New State |
LLA Cache |
Note |
| Unicast |
None |
NONCE or INCOMPLETE |
Unchanged |
Not mentioned in RFC2461 |
| Unicast |
Exist |
STALE |
Updated |
Reference |
| Multicast |
Exist |
STALE |
Updated |
Reference |
NS vs REACHABLE
| Destination |
SLLA option |
New State |
LLA Cache |
Note |
| Unicast |
None |
REACHABLE |
Unchanged |
Not mentioned in RFC2461 |
| Unicast |
Same |
REACHABLE |
Unchanged |
Reference |
| Multicast |
Same |
REACHABLE |
Unchanged |
Reference |
| Unicast |
Different |
STALE |
Updated |
Reference |
| Multicast |
Different |
STALE |
Updated |
Reference |
NS vs STALE
| Destination |
SLLA option |
New State |
LLA Cache |
Note |
| Unicast |
None |
STALE |
Unchanged |
Not mentioned in RFC2461 |
| Unicast |
Same |
STALE |
Unchanged |
Reference |
| Multicast |
Same |
STALE |
Unchanged |
Reference |
| Unicast |
Different |
STALE |
Updated |
Reference |
| Multicast |
Different |
STALE |
Updated |
Reference |
NS vs PROBE
| Destination |
SLLA option |
New State |
LLA Cache |
Note |
| Unicast |
None |
PROBE |
Unchanged |
Not mentioned in RFC2461 |
| Unicast |
Same |
PROBE |
Unchanged |
Reference |
| Multicast |
Same |
PROBE |
Unchanged |
Reference |
| Unicast |
Different |
STALE |
Updated |
Reference |
| Multicast |
Different |
STALE |
Updated |
Reference |