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PIM: Clarification on the leaf dead-timer #1123

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raviv-arista opened this issue Jun 7, 2024 · 0 comments
Open

PIM: Clarification on the leaf dead-timer #1123

raviv-arista opened this issue Jun 7, 2024 · 0 comments

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@raviv-arista
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The OpenConfig leaf, /network-instances/network-instance/protocols/protocol/pim/interfaces/interface/config/dead-timer is of type uint16. By definition, this leaf value is supposed to be multiplied by the hello-interval to give the default hold time to to keep neighbor state alive.
See RFC7761,

+--------------------------+----------------------+--------------------+
| Value Name               |  Value               |  Explanation       |
+--------------------------+----------------------+--------------------+
| Default_Hello_Holdtime   |  3.5 * Hello_Period  |  Default holdtime  |
|                          |                      |  to keep neighbor  |
|                          |                      |  state alive       |
+--------------------------+----------------------+--------------------+
| Hello_Holdtime           |  from message        |  Holdtime from     |
|                          |                      |  Hello message     |
|                          |                      |  Holdtime option.  |
+--------------------------+----------------------+--------------------+

The RFC says this value is 3.5 which cannot be stored in a uint16. The type for this leaf should be updated to store floating point values.

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