Another disadvantage comes in if you want go have gig to the desktop. If you already have gig switches, you have to make sure your IP phone is also gig. I had a couple of customers (working with another vendor before us) who replaced their switches from 10/100 to gig switches, but completely blanked out on the fact that their phones are 10/100 only.
A loop/broadcast storm on the data vlan will affect the bandwidth of the port and mess with the sensitive voice traffic. You can always use QoS to overcome this but the config is harder than if you use separate ports for phones and PCs.
Not sure if you can get some additional info for your presentations here:
Disadvantage - you won't get the throughput from the PC going through the phone as opposed to the PC directly into a switch port. The IP Phones don't have very powerful CPUs and I've noticed a 30% decrease in throughput going through a phone.
For normal day-to-day traffic that is probably no big deal. But for high-end systems that need to move tons of packets, fast, I'd bypass the phone.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...