[Nfd-dev] Fwd: [NFD - Task #1325] Generate FIB updates

[Lan Wang (lanwang)]

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From: <redmine-noreply at named-data.net<mailto:redmine-noreply at named-data.net>>
Subject: [NFD - Task #1325] Generate FIB updates
Date: May 16, 2014 6:04:54 AM CDT
To: Undisclosed recipients:;

Issue #1325 has been updated by Lan Wang.

Vince:

The statement "CAPTURE: indicates that no shorter prefix can be used; overrides CHILD_INHERIT. This flag applies on the prefix: if any route of a prefix has this flag, the prefix will have this flag." means just for that particular prefix, not longer prefixes. The prefix (e.g., /ndn/edu/memphis) can have multiple routes. If any of those routes has this flag, the prefix has this flag set.

For your question "Does that not mean if an entry has its CAPTURE flag set, then its children would also have their capture flag set?", I think the answer is no. What Obaid said is the following: If an entry A has its CAPTURE flag set, the children cannot use the nexthop of A's ancestors. This is different from setting a child's capture flag, which means that child cannot use its own ancestors' nexthops (including A's).

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For everyone: I would like to get comments on two issues and reach an agreement:

  1.  do you think this is correct for the CAPTURE flag: "This flag applies on the prefix: if any route of a prefix has this flag, the prefix will have this flag."? In contrast, the INHERIT flag applies only to (prefix, nexthop). Do you think this is the correct behavior for INHERIT?

  2.  do you think the CAPTURE flag on prefix A should block all A's children from using A's ancestors' nexthops?

Lan

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Task #1325: Generate FIB updates<http://redmine.named-data.net/issues/1325#change-2921>

  *   Author: Syed Amin
  *   Status: New
  *   Priority: Normal
  *   Assignee: Vince Lehman
  *   Category: RIB (NRD)
  *   Target version: v0.2

Traverse the RIB Tree and generate fib updates according to the flags.

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