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Cisco Bug: CSCvu01711 - IP Table rules for mgmtInstP mgmtSubnet MOs only programmed on a single APIC (cluster of 3)

Last Modified

Aug 27, 2020

Products (1)

  • Cisco Application Policy Infrastructure Controller (APIC)

Known Affected Releases

4.2(2f)

Description (partial)

Symptom:
Traffic from newly added subnet(s) is allowed on one or more Cisco APIC(s) and blocked on the other one or more Cisco APIC(s). As Ext Mgmt NW Inst Prof Subnets are applied/programmed on all Cisco APICs, traffic should work on all Cisco APICs.

Conditions:
- High amount of Subnets (30+) configured under the Ext Mgmt Network Instance Profile.
- Potentially, a few of these subnets overlap.
- /32 Subnet entries are added.
- Default and specific contract with specific filters applied under the Ext Mgmt NW InstProf (cons) and OOB EPG (prov).
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Bug Details Include

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  • Status
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