Category Archives: ACI Tutorial

ACI Inband Mangagment Route Leaking Kludge

When I was challenged with this: Hi @RedNectar , Right now I have a simple contract that allows SSH only: Scope set to global. TCP dst 22. “Both directions” and “reverse port filters” enabled. This contract is provided by the inband EPG … Continue reading

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Resolution Immediacy and Deployment Immediacy – ACI Master Class

When configuring ACI, have you ever wondered what those Resolution Immediacy options [Immediate | On Demand | Pre-provision] and the Deployment Immediacy options [Immediate | On Demand] do? Continue reading

Posted in Access Policy Chain, ACI, ACI Tutorial, Cisco, Master Class, Nexus 9000 | Tagged , , ,

ARP Gleaning – ACI Master Class

The purpose of these Gleaning ARPs is simply to “tickle” the target station into sending a packet – not because the gateway needs the MAC address of the target! Continue reading

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Configuring In-Band Management for the APIC on Cisco ACI (Part #3-via a L3Out)

Note: This is the third and last in a series of articles – the following is a variation of the first and second in the series. Much of the story is identical – but with a few added extras to configure the L3 out rather … Continue reading

Posted in ACI, ACI API, ACI CLI, ACI configuration, ACI inband management tutorials, ACI Tutorial, APIC, Cisco, Data Center, Data Centre, EPG, In-Band management, inband management, L2 Out, L2out, L3 Out, L3out, Postman, tutorial | Tagged , , , , , , , , , , | 3 Comments

Configuring In-Band Management for the APIC on Cisco ACI (Part #2-via a L2Out)

Note: This is the second in a series of articles – the following is a variation of the first in the series.  In fact, the whole story is almost identical – it is just that this one uses a L2 out … Continue reading

Posted in ACI, ACI API, ACI CLI, ACI configuration, aci inband management, ACI inband management tutorials, ACI Tutorial, APIC, Cisco, Cloud computing, configuration tutorial, Data Center, Data Centre, EPG, In-Band management, inband management, L2 Out, L2out, L3 Out, L3out, Postman, tutorial | Tagged , , , , , , , , , , | 2 Comments

Configuring In-Band Management for the APIC on Cisco ACI (Part #1-via an EPG)

And anyone unlucky enough to try and decipher Cisco’s official documentation for configuring In-Band management on the Cisco APIC or watch their pathetic video are probably feeling frustrated to the point of giving up.

Let me ease your frustration and take you through a journey showing you how to configure In-Band management in ACI. Continue reading

Posted in ACI, ACI API, ACI CLI, ACI configuration, ACI inband management tutorials, ACI Tutorial, APIC, Cisco, configuration tutorial, Data Center, Data Centre, EPG, In-Band management, inband management, L2 Out, L2out, L3 Out, L3out, Postman, tutorial | Tagged , , , , , , , , , , | 3 Comments

Cisco ACI Per Port VLAN feature

The customer had already tried configuring the ports, but kept getting a “Configuration
failed for … due to Encap Already Used in Another EPG” error, so I looked to use the Per Port VLAN feature to rescue them. Continue reading

Posted in Access Policies, ACI, ACI configuration, ACI Tutorial, Cisco | Tagged , , , , , | 4 Comments