ifAlias Reserved Characters. I have had a problem when the ifAlias value contains things like single or double quotes displaying properly. I believe this is because rrdgraph does not like the quotes. Would it be possible to find out what characters it does not like and remove/escape them before sending them to the grapher?
As a temporary fix I just made another template without the ifAlias field. But this is hopefully only temporary. I would change it on the device but some of the devices we monitor are not managed by us.
This is certainly something we'll try to fix. I've started bug#236
to handle this issue.