[sdnog] problems with Cacti

[Samir S. Omer]

Dear All,

I'm experiencing some problems with Cacti in my network (2 problems)
we are implementing cacti in two different POPs to measure our members' bandwidth.

the first issue that I noticed that the traffic doesn't match for a giving member from both POPs
one Cacti read 7MB while the other reads 8MB. 
shouldn't the traffic be the same as cacti read a specific field (counter) in the router ?

my other issue is that every once and a while the graph page gets out of proportions and I have to scroll to find the graph (the graph shifts and float to the right).
what could be the cause for this problem ?

Regards,
Samir Abdullatif