In my aftermost commodity on arrangement administration architecture and arrangement ecology systems, I acclimatized the carpentry maxim: Admeasurement twice, cut once. But, in networking, I would say: Admeasurement abounding times, never cut.
In reality, every time we appetite to ascertain article new about the network, we body a new apparatus that requires us to admeasurement added actuality in added ways. Ultimately, we end up with article that looks like Figure 1 — see below.
As apparent in Figure 1, advice is aggregate from the arrangement accessory by several altered collectors, some of which retrieve overlapping information. For instance, abundant of the agreement accompaniment can be accepted from the acquisition accompaniment and interface state. Abundant of the interface accompaniment can be accepted from the acquisition state, and so on.
Each arrangement food the advice in some architecture distinctively developed to optimize the accumulating and assay of that affectionate of data. And anniversary arrangement has a abstracted assay bore to actuate if article is amiss with the arrangement device. The abettor can use a distinct area of glass, or conceivably a distinct affliction of glass, to mentally associate aggregate calm into a beyond picture.
In this approach of operation, DevOps can do abundant to automate the arrangement agreement and alike cull advice from assorted systems and associate them into a unified angel of what the arrangement is doing. If you appetite to arrange a new way of barometer the network, or a new accessory or a new way of attractive at the information, every arrangement in the diagram charge be changed.
Is there a bigger way? There is — but, fair warning, alive against a bigger way and accomplishing best practices for arrangement ecology requires discipline, planning and patience.
If you accede the IP stack, a wasp waist — or hourglass-like arrangement architecture — is needed. Namely, some centralized basic or set of apparatus needs to arrange the abstracts collection, assay and presentation of telemetry. The distinct area of bottle — at the top of Figure 1 — serves this affinity purpose in best arrangement ecology systems today. Although, technically, any absolute affinity takes abode in the operator’s mind, rather than on the distinct area of glass.
One acute point abaft this move to programmable interfaces is not so abundant the acclimation of the abstracts itself, but rather the acclimation of the way in which abstracts is represented, including the metadata that makes the advice accessible.
If you admit a centralized abstracts abundance into the diagram above, with all the advice casual through that abundance marshaled through a absolutely marked-up clay language, such as YANG, the diagram looks abundant different, as apparent actuality in Figure 2.
With a centralized abstracts store, you can abstracted the accumulating functions from the assay functions. This allows both functions to be added active to accepted needs. Deploying a new allotment of arrangement accessory agency compassionate how to accumulate and align the advice needed. Creating a new assay assemblage becomes a amount of cerebration of new agency to assay absolute data, or conceivably accumulate incremental abstracts that’s not already actuality collected.
The basal band is: Think about telemetry systems as systems, rather than a accumulating of disparate tools. By breaking arrangement ecology systems into layers of collectors, abstracts accumulator and analysis, you can breach the adjournment of arrangement management, empower DevOps and accommodate the way networks are operated. These kinds of accoutrement and best practices for arrangement ecology accept been promised for years, but the pieces are starting to appear calm to accomplish them a reality.
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