 |
|
|
|
|
|
|
|
|
|
|
|
| n |
When
node X is unable to forward packet P (from node S
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|
to
node D) on link (X,Y), it generates a RERR message
|
|
|
| n |
Node
X increments the destination sequence number for D
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|
cached
at node X
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| n |
The
incremented sequence number N is included in the
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RERR
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| n |
When
node S receives the RERR, it initiates a new route
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|
discovery
for D using destination sequence number at least
|
|
as
large as N
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| n |
When
node D receives the route request with destination
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|
|
sequence
number N, node D will set its sequence number
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|
to N,
unless it is already larger than N
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|
