[atlas] Software Probs

Hi Shahin,

On 2014/11/26 15:56 , Shahin Gharghi wrote:
> The other way to save probes is making probes multi-home.
> For example I have 4 probes in one place to monitor 4 different IP
> prefixes and paths. I know because of the hardware limits we can't use
> sub-interfaces but we can set 4 IP addresses manually and add 4 any
> route by the source, then we can save 3 other probes.

One thing to keep in mind is that there are very good reasons to try to
keep probes as simple as possible. Even if that means installing 4
probes in one location.

Extra complexity translates into extra testing effort and more bugs.
What is gained by using the hardware more efficiently can be lost easily
in more engineering effort.

At this moment, making a probe multi-homed would be a significant
engineering effort because just about all code implicitly assumes that
every probe has exactly one interface.

(I assume that from a hardware point of view, VLAN tagging would allow a
probe to be connect to different ethernets)

Philip