[igraph] Tracking vertex IDs

[Natalia Olano]

Hello everyone,

I need to use igraph to recreate a computer network topology and
calculate the shortest paths. Stations can switch on and off and so
need to be excluded from the shortest path calculation. The vertex IDs
are shifted when a vertex is deleted, but I would still need to know
the computer they actually correspond to. Which would be the simplest
way to do this?

Thanks
Natalia Olano