buglwIP - A Lightweight TCP/IP stack - Bugs: bug #34617, ARP Unicast requests

 
 

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bug #34617: ARP Unicast requests

Submitted by:  Amir Shalem <amirshalem>
Submitted on:  Sat 22 Oct 2011 10:30:59 AM UTC  
 
Category: ARPSeverity: 3 - Normal
Item Group: Feature RequestStatus: Fixed
Privacy: PublicAssigned to: Simon Goldschmidt <goldsimon>
Open/Closed: ClosedPlanned Release: None
lwIP version: CVS Head

Mon 23 Mar 2015 08:40:56 PM UTC, comment #2:

Fixed, thanks for reporting.

From 30 seconds before a stable entry times out, a unicast requests are sent (only if the entry is still used for TX).
From 15 seconds before timeout, broadcasts are sent.

Not a real sophisticated algorithm, but it should do the trick, given that this is only a network bandwidth optimization.

Simon Goldschmidt <goldsimon>
Project AdministratorIn charge of this item.
Tue 13 Mar 2012 04:37:48 PM UTC, comment #1:

I'm happy with that. Do you have a patch that makes this change?

Kieran Mansley <kieranm>
Project Administrator
Sat 22 Oct 2011 10:30:59 AM UTC, original submission:

Currently all etharp_request() ARP requests are sent broadcast
I propose a feature which will cause the ARP requests to be first sent as unicast requests (to the cached hw address), and only after XXX (3?) failure attempts we will switch to broadcast requests.

This behavior is similar to how Linux ARP layer works.

Amir Shalem <amirshalem>

 

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Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -unavailable- added by goldsimon (Posted a comment)
  • -unavailable- added by kieranm (Posted a comment)
  • -unavailable- added by amirshalem (Submitted the item)
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    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Mon 23 Mar 2015 08:40:56 PM UTCgoldsimonStatusNone=>Fixed
      Assigned toNone=>goldsimon
      Open/ClosedOpen=>Closed

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