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Cisco Bug: CSCvv66449 - AS-prepend isn't working as expected when Graceful Maintenance is enabled under Global BGP

Last Modified

Oct 01, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

6.6.3.BASE

Description (partial)

Symptom:
NCS55A1----------EBGP--------Juniper

On NCS55A1, as-prepend under Graceful Maintenance is configured.
When NCS55A1 send a BGP update to Juniper, we do not see as-prepend update being sent out when graceful maintenance was activated under Global BGP for ipv4 addressfully. Same setup works fine for ipv6 addr family.

Conditions:
BGP peering between NCS55A1 & Juniper & issue seen for ipv4 address family. IPv6 works fine.

Gshut activated without "send-community-ebgp" config under neighbor AFI
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