a User had a few issues yesterday with his phone, at one point he wanted no computers to be connected to the network via the phone system.
The problem was that his laptop was set to 100mbps full, but the phone was set to auto-negotiate. I believe having spoken to a few people that we have a mixture of the following in the environment;
1. Phones set to Auto Negotiate
2. Phones set to 100mbps full
3. Computers set to Auto Negotiate
4. Computers set to 100mbsp full
I believe that all client side computers and devices (phones included) should be set to auto-negotiation, and all infrastructure side should be set to 100mb full. I would like to make this the standard, but understand that it will take some reconfigurations to get there, and that there may be some valid reason why we have things set the way they are.
By using auto-negotiation at the desk, any user plugging in at the desk on any cable can expect a certain level of service, and their laptop will work when they travel.