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Bug #1953

closed

Persistent loop with short InterestLifetime (DeadNonceList)

Added by Junxiao Shi over 9 years ago. Updated over 2 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Category:
Forwarding
Target version:
Start date:
Due date:
% Done:

100%

Estimated time:
18.00 h

Description

Topology:

A-------B
 \     /
  --C--

Each link has 50ms delay.

Steps to reproduce:

  1. on A, install a Route /P toward B
  2. on B, install a Route /P toward C
  3. on C, install a Route /P toward A
  4. on A, send an Interest /P/1 with InterestLifetime=100ms

Expected: Interest does not loop

Actual: Interest loops forever

Root cause: a packet needs 150ms going through the cycle A-B-C-A, but unsatisfy timer deletes the PIT entry after 100ms


Files

dead-nonce-list_20140919.pptx (58.5 KB) dead-nonce-list_20140919.pptx Junxiao Shi, 09/20/2014 09:39 AM
dead-nonce-list_20141004.pptx (58.7 KB) dead-nonce-list_20141004.pptx Junxiao Shi, 10/04/2014 02:51 PM

Related issues 1 (0 open1 closed)

Related to NFD - Task #1782: Redesign loop detection in PIT entryClosedJunxiao Shi

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