Cisco Bug: CSCsz58118 - "ip multicast boundary" affects other interface
Oct 04, 2013
- Cisco IOS
Known Affected Releases
Symptom: In an MVPN setup, observed that data mdt didnot forned because the ip multicast boundary on one core facing interface was affecting other core facing interface. Conditions: 1. have two equal cost interfaces to core, Gig15/0 and Gig0/0/0 2. there should always be two equal cost paths to reach remote PE2. However Gig15/0 should be the rpf preferred interface. 3. have multicast boundary only on Gig0/0/0, which permits all groups except data-mdt group 4. shut Gig15/0. this will cause no data-mdt mdt formation over Gig0/0/0 because of the boundary command. 5. Now no-shut the Gig15/0 interface: rpf-preferred path. Although the incoming interface for data-mdt state is changed to Gig15/0, the join is still not sent.
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