9508d2c4d7
* Added configurable default number of transmissions for CSMA to use when not specified using packetbuf attributes (CSMA_CONF_MAX_MAC_TRANSMISSIONS).
...
* Renamed packetbuf attribute PACKETBUF_ATTR_MAX_MAC_REXMIT to PACKETBUF_ATTR_MAX_MAC_TRANSMISSIONS where value 0 (attribute not set) means that default number of transmissions should be used.
2010-03-26 12:29:29 +00:00
a4f9e62295
Added a parameter to collect_open() that specifies whether or not the node should be a router for packets, or only an originator of packets. Updated the collect module to the new annoucement API.
2010-03-25 08:51:07 +00:00
7b0606cd58
Renamed the neighbor module to collect-neighbor, as it is only used by the collect module and is not a generic neighbor module
2010-03-19 13:17:00 +00:00
36b995cc9a
Reenabled announcement support
2010-03-16 18:12:34 +00:00
0236c6e725
Leave compiler warning for 16 bit timers
2010-03-12 17:51:07 +00:00
52c9f4bde3
Remove compiler warning
2010-03-12 15:21:14 +00:00
5a6fc2ade0
Bugfix: set up rtmetric before starting to announce it. Set the number of MAC layer retransmissions correctly
2010-03-09 13:21:28 +00:00
c65e09ceb2
Remove compiler warnings
2010-03-02 15:41:23 +00:00
ec928a2a19
Make max queueing time depend on retransmission timeout
2010-02-28 14:15:58 +00:00
7165a3866f
Significant rework of the Contiki data collection protocol:
...
* the new version makes use of MAC-layer feedback so that bad paths
can be identified quicker and then avoided.
* the new code uses transport layer ACKs that contain feedback from
the collect protocol: when a packet cannot be forwarded due to lack
of resources, the ACK contains a flag that indicates that the packet
could not be forwarded. ACKs also contain the routing metric of the
sender, which improves agility in face of rapid path changes.
* loop detection and management has been improved: with higher path
metric agility, the system is more prone to short-lived routing
loops. Instead of dropping looping packets, the new version adjusts
the routing metric for the routes that exhibit loops so that the
risk for future loops is reduced.
* make use of packet attributes to inform the MAC layer of how many
times packets should be retransmitted.
2010-02-28 09:18:01 +00:00
0eade2886c
Better loop handling: when a loop is detected, the neighbor to which the packet was originally sent gets an inflated ETX; made sure that collect without announcments work; increased timeouts, to work nicer in larger networks
2010-02-23 18:35:23 +00:00
4a522c96dd
Added debugging statements for packet drops
2010-02-08 21:59:49 +00:00
d7b7b05d0e
Moved the neigbor_init() call to the collect module, since it is the only one that currently uses it
2010-02-03 20:38:33 +00:00
f66cd6d44e
Increased the forwarding queue to six packets to improve collection robustness
2010-02-02 21:44:05 +00:00
56218aba3b
Made rimeaddr_t pointers const where they should be.
2009-11-08 19:40:16 +00:00
33909cc2fd
made neighbor discovery method configurable. default is announcements.
2009-05-30 19:54:05 +00:00
48d4800f08
removed reference to undefined function in mspgcc
2009-05-06 15:34:28 +00:00
f5a57a4e54
Fixes by Ward Van Heddeghem (reapplied from versioin 1.24)
2009-04-30 20:21:06 +00:00
e70cf0c7c6
Rewrite of the collect module. The new version uses a packet queue for outgoing and forwarded packets so that more than one packet can be forwarded at the same time. The new version uses the packetqueue module to maintain the packet queue.
2009-04-29 20:48:57 +00:00
f5f52ffd1f
Fixes by Ward Van Heddeghem (VUB)
2009-04-07 13:06:03 +00:00
65eb5fd4e8
Renamed the rimebuf module to packetbuf to signal that the module is used outside of a pure Rime context (e.g., the sicslowpan code uses it).
2009-03-12 21:58:20 +00:00
f304941ab4
raise busy forwarding flag before sending
2009-03-10 14:07:41 +00:00
1eb085834f
Update announcement value after route metric saturates. Not doing this results in stubborn forwards from former children nodes.
2009-03-09 12:54:27 +00:00
0a12098bd5
avoid ping pong packets during route disruption
2009-03-06 17:33:59 +00:00
08b2315f41
bugfix: put up busy forwarding flag only after next hop found
2009-03-04 08:59:32 +00:00
36bb3ece64
If no neighbor is found, we listen for announcements. Cleaned up debug output.
2009-02-16 01:18:53 +00:00
e1ef13dad6
Reduced the size of the packet cache from four to two to avoid falseley dismissing fresh packets (the header field that hold sequence numbers is only two bits wide, hence all sequence numbers fits in a four-entry cache...)
2009-02-10 00:44:50 +00:00
3670ef2f44
Rewrote the collect module so that it uses the announcement module rather than the neighbor-discovery module. This makes it possible to implement other annoumcement back-ends than the traditional broadcast-based neighbor discovery
2009-02-09 20:58:25 +00:00
7cf3165155
Replaced NETSIM macro with general (and now actually working) solution in Makefile.include.
2008-11-17 22:52:10 +00:00
31509ad726
Fixed a bunch of bugs in the collection neighbor announcement/discovery code: neighbor announcments were not repeated unless there was a change in the ETX val. Neighbor announcements happened to often when there were changes in the ETX.
2008-08-15 19:00:38 +00:00
ec22f3c2fc
Renamed Rime nf module to netflood
2008-07-03 22:02:09 +00:00
c2c3835110
Changed name of Rime module ruc to unicast
2008-07-03 21:52:25 +00:00
020a0c30aa
Rewrote the collect module to use packet attributes instead of explicit headers
2008-06-30 09:15:22 +00:00
4349504219
Bugfix: fixed the missing arguments to make Rime compile
2008-06-27 16:44:58 +00:00
839b6111d6
Changed send function to return false if it was not possible to send
2008-06-26 11:38:59 +00:00
d99ca27820
Changed all occurences of u8_t and u16_t to uint8_t and uint16_t
2008-02-24 22:05:27 +00:00
16c715aade
Updated collect_open() definiton to match prototype declaration
2008-02-24 21:08:37 +00:00
53f0b7feb8
Added line drawing code when compiled for the netsim target
2008-02-03 20:52:41 +00:00
49ac5f9026
Show rt metric in netsim as number of expected transmissions
2008-01-24 21:11:40 +00:00
16142f12c7
Removed unused code
2008-01-08 07:54:40 +00:00
d33871facc
Bugfix: hops should be at least one for all packets that are sent over the radio
2008-01-07 14:52:23 +00:00
01da62aa25
Changed local rtmetric name from 'local_rtmetric' to 'rtmetric' and updated the neighbor discovery module from nbh to neighbor-discovery
2007-12-09 15:43:09 +00:00
dca1e0e446
Changed module name to 'collect' from 'tree' to better reflect the purpose of the module, rather than the particular data structure used to implement it
2007-11-28 16:04:41 +00:00
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