Table 1 Summary of symbols
From: An optimization-based approach for efficient network monitoring using in-band network telemetry
Symbol | Definition |
|---|---|
G=(D, I) | Physical infrastructure G. |
D | Set of programmable forwarding devices. |
I | Set of device interfaces. |
δ(i) | Interface i telemetry demand. The number of telemetry items to be collected from interface i. |
F | Set of active flows in G. |
ρ(f) | Set of interfaces through which packets from flow f are forwarded. |
κ(f) | Flow f telemetry capacity. The maximum number of items packets from flow f may transport. |
Φ:I→F | An assignment function of device interfaces I to network flows F. |
x i,f | Binary variable which indicates whether flow f is assigned to cover interface i∈I. |
y f | Binary variable of the INTO Concentrate optimization model which indicates whether flow f is a telemetry-active flow. |