- Fact:
- Wireless transmissions
are broadcast
- Nodes can hear transmissions that are not destined for itself...
- Wireless transmissions
are broadcast
- Yet
another trick
to
increas your (own)
route cache:
- Suppose a
node
overheard a
transmission
(that was not destined
for itself)....
- The node can:
- Add the
forward portion of
the source route in the
overheard packet to
its own route cache
if:
- The node can reach some node in the source path
- Add the
forward portion of
the source route in the
overheard packet to
its own route cache
if:
- Suppose a
node
overheard a
transmission
(that was not destined
for itself)....
- Example:
- Suppose node C
has a source route to
node X:
- Node V transmits a
source routed packet to
node Z:
- Node C
overhears the
transmission and
can add the
following
source route:
- Suppose node C
has a source route to
node X: