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Cisco Bug: CSCuk49694 - 6PE: Ignoring label update from peer

Last Modified

Feb 21, 2018

Products (1)

  • Cisco IOS

Known Affected Releases

12.2S

Description (partial)

Symptoms: When a BGP 6PE peer router send an update with a different label 
from the previously advertised label, the 6PE router does not update the BGP 
table nor the forwarding path with the new label.

Conditions: This symptom is observed in a "1-2-3 cascade" with three 6PE 
routers when the connection between the second and the third 6PE router goes 
down long enough for the BGP session between these routers to go down and when 
the BGP sessions comes up again.
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