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Cisco Bug: CSCvi03215 - suppress bgp default when default-information originate is configured

Last Modified

Oct 16, 2019

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

5.3.4.BASE

Description (partial) 

Symptom:
when a router is configured to originate a default via "default-information originate" it can overlap with a received (bgp) default route.
downstream routers do not receive 2 paths, but merely updates on the self originated one and the received/advertised one.
This can lead to routing discrepancies.

This request is about making the logic such that if D/O is configured, we suppress any received default and NOT advertise that downstream so that only the D/O is seen downstream.

Conditions:
D/O and having a (BGP) default route

Related Community Discussions

ASR9k IOS-XR BGP default-originate per peer
Greetings,   I have a potential issue that has caused several issues for me.  On an ASR9001 with 5.3.2, when we put on a BGP peer in a vrf "default-originate", it doesn't seem to re-source"  the announcement to my carrier with no as-path information.  It continued to send the entire AS Path to our carrier.  This caused further issues in that enviironment.  When this is being announced from our other routers (ios, ios-xe) it does what we expect with no as-path information besides that router originating ...
Latest activity: Mar 14, 2018
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