Wassim

We saw in the past an example of NTP configuration on IOS . In this short article we aboard NTP on ACI and we configure an ACI Date&Time (NTP) Pod policy. NTP must indeed be configured and synchronized on APIC and all fabric nodes. The Date&Time Pod policy is an example of fabric policies. Summary of steps Create a Date and Time Pod policy (or NTP fabric policy) Create a Pod policy group and invoke the Date and Time Pod Policy in it. Create a Pod Profile. Select the Pod number and attach the Pod policy group to it Detailed Steps set the Administrative State and the Server State to enabled Click on the + sign to add servers: Choose the management EPG , i.e. This step is needed if the fabric nodes will access the NTP server through an external management network (out-of-band): If the management is in-band, you don’t need the management EPG here. our server entry is added: We must associate the NTP policy to a policy group, and precisely it is named a Pod Policy Group. You go...

Summary of the configuration steps have in mind the subnet you are going to use for out of band, and its gateway IP address. assign the OOB subnet to selected nodes define an OOB contract, with a subject and a default filter. This contract will be used in both directions: provide and consume. set the OOB contract as a provided contract by the default OOB EPG create an External Network Instance Profile set the OOB contract as a consumed contract by the external management network instance profile. Detailed configuration steps position yourself on tenant mgmt Create a Node Management Address: give it a name next to Policy Name Select Nodes by : choose specific then select the nodes that will receive IP addresses under Config select “out-of-band addresses” select the default EPG as the Out-of-band Management EPG define the out-of-band gateway. define the subnet range of OOB IP addresses that will be assigned to the previously selected nodes. confirm Position your self under Ou...