Cisco switch DHCP reservation configuration

Recently I was working wth some devices that couldn’t be statically set IP addresses at some of our branches and I had to setup DHCP reservations on the Cisco switch. I found plenty of resources on configuring DHCP pools however, not much out there on setting up DHCP reservations. I came across the below website and used the following configuration

http://www.jjohnstonit.com/wp/2012/05/setup-dhcp-reservation-on-cisco-routerswitch

ip dhcp pool My_Reservation

host 10.11.12.4 255.255.254.0

client-identifier 01f0.cba1.6916.96

default-router 10.11.12.1

dns-server 10.11.1.10

domain-name yourdomain.local