Part 1:
Change bandwidth estimate to exponential moving average
(Similar to Westwood+ Simple Bandwidth Estimator in streaming)
instead of 40 ms bucket.
Also use it for tunnel.participatingBandwidthOut stat.
Remove linear moving average code previously used for stat
Reduce RED threshold from 120% to 95% of limit
Part 2:
Fix the other part of RED which is the dropping calculation.
Previously, it simply used the bandwidth to start dropping if
it was higher than a threshold. The drop percentage rose from
0 to 100%, linearly, based on how far the bandwidth was
above the threshold. This was far, far from the RED paper.
Now, we follow the RED paper (see ref. in SyntheticREDQueue javadoc)
to calculate an average queue size, using the exact same
exponential moving average method used for bandwidth.
Similar to CoDel, it also includes a count of how long
the size is over the threshold, and increases the drop probability with the count.
The unadjusted drop probability rises from 0 to 2%
and then everything is dropped, as in the RED paper.
The low and high thresholds are configured at 77 ms and 333 ms of queued data, respectively.
The queue is "synthetic" in that there's not actually a queue.
It only calculates how big the queue would be if it were
a real queue and were being emptied at exactly the target rate.
The actual queueing is done downstream in the transports and in UDP-Sender.
The goals are, for an 80% default share, to do most of the
part. traffic dropping here in RED, not downstream in UDP-Sender,
while fully utilizing the configured share bandwidth.
If the router goes into high message delay mode, that means we are not dropping enough in RED.
Above 80% share this probably doesn't work as well.
There may be more tuning required, in particular to achieve the goal of "protecting" the UDP-Sender
queue and local client/router traffic by dropping more aggressively in RED.
This patch also improves the overhead estimate for outbound part. tunnel traffic at the OBEP.
Reviewed, tested, acked by zlatinb
Ensure IPv4/v6 peer tests are alternated
Reschedule peer test if result is UNKNOWN and a state transition is pending
Fix peer test last send time not being set in all cases
Increase min and max queue size
Tweak stats
Util: Allow creation of CoDel queues with non-default parameters
New params are tentative, may be adjusted later
WIP - disabled by default
Store local IPv6 address at startup so UPnP can attempt to forward it
Request forwarding of ports to IPv6 addresses
Update status on successful IPv6 forward
Fix IP mismatch test for IPv6
Log tweaks
WIP - more to follow
Add support for WANIPv6FirewallControl service
Add class extending PortForward to request forwarding to a specific IP, and to store UID
Bind POST socket to local IP for POST to WANIPv6FirewallControl service
Reduce max forward attempts
Don't sleep after last forward attempt fails
Log tweaks
Add support for storing multiple location URLs in DeviceData
Add methods to prefer IPv6 for location URLs
Prefer IPv6 for POST target to WANIPv6FirewallControl service
Add method to bind local address for POST, needed for security checks when forwarding IPv6
Remove IPv6 checks from XML URL parser
Remove unused call in QueryRequest
... as they were being bypassed for known devices.
This fixes erratic UPnP results for devices sending multiple
SSDP search responses, one for IPv4 and one for IPv6.
Temporary fix until we add support for multiple location URLs to DeviceData.
This supports IPv6 introducers.
This requires that Alice (the requester) include the IPv4 address in the RelayRequest
when sent over IPv6, and that Bob (the introducer) uses that address instead of
the source address.
IPv6 address will be published in ihost[0-2].
This was specified as of 0.9.24 but never implemented by Java or i2pd.
Bob-Charlie and Alice-Charlie comms must still be over IPv4.
WIP, not fully tested.
IPv6 introductions is part 2, TBD.
ref: http://zzz.i2p/topics/3060
WIP, disabled by default for now, to be enabled before relese
Add caps to NTCP2 when in hidden mode or firewalled
Add SSU address and caps when in hidden mode
Add 4 cap to introducer address
Other cases todo; ref: http://zzz.i2p/topics/3050
When hidden, store last IP address in config,
calling replaceCurrentExternalAddress(), and IP change event logging;
wasn't done before
