605392522f
Bugfixes and improvements: rtmetrics are now 16-bit clean. Added experimental feature that proactively probes neighbors that have not yet been tried out, in order to get an initial ETX for them.
2010-10-03 20:08:44 +00:00
d0579c8a81
Cleaned up the collect neighbor management code
2010-10-03 20:07:10 +00:00
b23a364397
rtmetric values should always be computed as 16-bit values
2010-10-03 20:06:25 +00:00
32ba90ea4c
Bugfix: make sure that neighbor exists before attempting to update tx
...
count.
2010-09-28 06:53:02 +00:00
77c5187a2e
fixed bug where context is null but still referenced
2010-09-23 19:57:50 +00:00
494d2a3073
only compare with global addresses when selecting source for a specific destination
2010-09-23 18:17:27 +00:00
eed22a6f3c
A number of changes to the collect code:
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* Added an optional "keep alive" mechanism whereby an idle network is
periodically probed by dummy packets to maintain a recent quality
metric when there is no traffic.
* Bugfix in when new routing metrics should be advertised
* Rewrote the ACK logic so that a queuebuf is not allocated for each
ack, only for those acks generated by the sink node.
* Updated the wrap-around logic for sequence numbers: when a sequence
number wraps, it won't go back to 0. Instead, it wraps to 128. This
allows us to understand when a node has rebooted: when its seqno is <
128, it has recently rebooted.
2010-09-22 22:08:08 +00:00
2cae71e89b
Added a function for obtaining the link estimate and rtmetric for a neighbor
2010-09-22 22:04:55 +00:00
46b2451969
Made the initial link estimate explicit
2010-09-22 22:03:21 +00:00
1dc5366b15
fixed buggy comment
2010-09-21 13:15:25 +00:00
f1d19a5f9a
no callback to rpl if rpl is not used
2010-09-21 13:13:09 +00:00
63ab1ffce0
clear default route when neighbour is removed
2010-09-20 15:30:12 +00:00
58db04ee64
Set a high penalty for packet losses.
2010-09-15 15:59:52 +00:00
098f4001e0
Use fixed point arithmetic in the calculations of the ETX EWMA
2010-09-15 15:10:25 +00:00
adf6961a85
Various bug fixes and adjustments for rpl-11
2010-09-15 13:22:22 +00:00
18e31f33b9
Minor tweaks. Removed debug output from CVS.
2010-09-14 06:48:36 +00:00
eb58968459
Added a timer to each phase structure that keeps track of for how long
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a particular receiver has not ACKed packets. After some time
(currently 16 seconds), the sender will begin sending full strobe
periods again.
2010-09-13 13:39:05 +00:00
591766e663
Significant improvements to the Collect protocol:
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* Loop detection and untangling. Now uses in-band loop detection that
works.
* Link quality estimation. Now starts with a conservative /
pessimistic estimate for new links.
* Retransmissions. MAC layer and network layer retransmissions are now
decoupled.
* Loss handling. Deals better with losses now.
* Concurrent applications. Each connection now maintains its own
neighbor table with separated cost to sink estimates for each
connection.
2010-09-13 13:28:14 +00:00
4e0744954a
Rewrite of important parts of the Collect logic: link estimation
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calculation and parent selection. This fixes a severe bug that caused
loops when packets were erroneously retransmitted due to ACK loss.
2010-09-08 19:21:45 +00:00
f05952c926
Changed packet id to use 8 bit instead of 4 bit
2010-08-31 13:14:49 +00:00
12479c32bc
Fix compiler warnings
2010-08-01 21:18:07 +00:00
11760059d3
The second predicate is not needed.
2010-07-03 23:52:02 +00:00
007d4a4001
Improved logic for processing DIOs
2010-06-28 14:51:23 +00:00
30db4eff52
Made QUEUEBUF_STATS configurable
2010-06-24 09:48:21 +00:00
e965b74cf5
added missing include
2010-06-18 08:28:56 +00:00
4741b95858
added missing include
2010-06-16 10:10:10 +00:00
21828ad782
Changed the retransmission time to be based on the configured MAC channel check rate when the RDC has no channel check interval.
2010-06-16 10:08:30 +00:00
7647cbd8aa
Use the list_item_next() API
2010-06-15 19:22:25 +00:00
560c84a2fe
Added a function for getting the first global IPv6 address
2010-06-15 19:16:22 +00:00
01b1359b1f
removed unused (and slightly problematic) code
2010-06-15 14:19:22 +00:00
3fa8ffda1a
Moved the modules packetbuf, queuebuf, and packetqueue from net/rime to net/, since they are not Rime-specific
2010-06-14 19:19:16 +00:00
951fd78f6c
ctimer moved from net/rime to sys/
2010-06-14 18:58:45 +00:00
fad2b1def9
Clarified the function naming for neighbor information callbacks - names now indicate where the information is from.
2010-06-14 18:35:04 +00:00
adc38568ad
Minor optimization: replaced init loops with memset to reduce code size
2010-06-14 13:51:13 +00:00
7499939c94
removed debug output
2010-06-14 13:07:09 +00:00
e000b1abf3
A major update to ContikiRPL resulting in a reduced code footprint by
...
300 bytes, as well as cleaner protocol logic.
* Made parent management uniform.
* Simplified the DIO processing.
* Improved the Objective Function API and its documentation.
* Removed redundant code at various places.
* Improved identifier naming.
* Switched visualization from candidate parents to preferred parents only.
* Made DAO ACK transmissions configurable.
* Improved initial ETX guess by using a cached local confidence value.
* Added a periodical rank recalculation function to reduce
the maximum stack depth.
* Increased the Trickle redundancy constant to ensure faster
topological updates.
2010-06-14 12:44:37 +00:00
a890cd3d49
Moved ctimer.[ch] from their old and illogical location in core/net/rime to a more appropriate place in core/sys
2010-06-14 11:33:58 +00:00
8f8393aadc
Moved ctimer.[ch] from their old and illogical location in core/net/rime to a more appropriate place in core/sys
2010-06-14 07:34:36 +00:00
baa62e9314
Addresses are not const
2010-06-14 06:55:26 +00:00
2647f879c2
Bugfix: select the best parent if current parent is NULL
2010-06-14 06:54:47 +00:00
8d1680fed5
Filter duplicate packets
2010-06-14 06:52:41 +00:00
a6bd51f361
If a packet is lost due to NOACK or TXERR, we count the number of transmissions and we add an additional loss penalty (currently one)
2010-06-14 06:51:58 +00:00
1095997b66
made DIOs and OCP 09 compliant
2010-06-12 10:55:46 +00:00
75b624eb71
Refactored the code, removed void pointer arithmetic, and fixed invalid list removal after freeing of memb object.
2010-06-11 12:32:48 +00:00
8a43743a42
Updated declaration for rpl_alloc_dag.
2010-06-08 21:41:02 +00:00
b1521e4950
Check correctly if a DAG already exists in the same instance.
2010-06-08 21:37:22 +00:00
296c828ac2
Removed instant reaction to packet loss. Previously, a neighbor was dropped if no MAC layer ack was received.
2010-06-08 19:25:40 +00:00
4a08f545c9
Make the distinction between incoming and outgoing DTSN clear.
2010-06-08 16:21:54 +00:00
b8848f29eb
Replaced invalid attempt to switch preferred parent when its DS6 neighbor entry got purged.
2010-06-08 15:40:50 +00:00
4e61d69a49
Removed redundant code, moved the control of acceptable rank increases into a separate function.
2010-06-07 14:01:22 +00:00
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