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Cisco Bug: CSCvu66614 - BFD timers are not negotiated with scale & aggressive sessions

Last Modified

Oct 19, 2020

Products (1)

  • Cisco Network Convergence System 5500 Series

Known Affected Releases

7.2.1.BASE 7.3.1.BASE

Description (partial)

Symptom:
Few ipv4 and ipv6 bfd sessions will show up but timer will be not negotiated to configured value. it will stuck at 6 sec timer.

Fo0/0/1/1.5         36:2:1::11
Yes                 0/0/CPU0        0s(0s*0)         6s               UP

Conditions:
Condition to hit :
-  BFD Full scale and aggressive timer values for a given product.
   Please refer to the NCS series BFD Documentation to learn about supported scale and timers.
-  With full scale at aggressive timers  and with below triggers issue can be seen.
            > router reload
            > lc reload
            > commit replace and rollback
            > loading the scale config at once
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