Gurusiddesh, I’ll defer to the RFC authors on your question. However, please refrain from referring to bits as being “unset”. They are set or clear.
Thanks, Acee From: Lsr <[email protected]> on behalf of Gurusiddesh Nidasesi <[email protected]> Date: Monday, April 19, 2021 at 6:13 AM To: "[email protected]" <[email protected]> Cc: Spencer Giacalone <[email protected]>, Stefano Previdi <[email protected]>, "Les Ginsberg (ginsberg)" <[email protected]>, Dona Maria John <[email protected]>, Vikram Agrawal <[email protected]>, Mahalakshmi Kumar <[email protected]> Subject: [Lsr] Doubt regarding A bit set/unset Hi All, I had a query regarding setting/unsetting A bit. https://tools.ietf.org/html/rfc8570#section-4.1 states that A bit: This field represents the Anomalous (A) bit. The A bit is set when the measured value of this parameter exceeds its configured maximum threshold. The A bit is cleared when the measured value falls below its configured reuse threshold. If the A bit is cleared, the sub-TLV represents steady-state link performance. So does it mean we have to have two configurations one for reuse and another for maximum threshold? Will below example follow the RFC? reuse threshold : 50 usec maximum threshold : 100 usec 1st measured value : 110 usec conclusion: Set A bit. 2nd measured value : 75 usec conclusion : Do nothing (Maintain pervious state of A bit as the value is less than reuse or greater than threshold) 3rd measurement value : 30 usec conclusion: Unset A bit. If we have to have two configuration for threshold to set/unset A bit, will they be different from the threshold that we use for advertisements? Regards, Gurusiddesh V N .
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