SSR Dhcp IP reservation might fail with Error: Link layer address used in static assignment must be unique within a node.

Reserving an IP in the dhcp configuration under Mist and commiting it might give you below error:

Validation Failed Problems: 1: Error: "Link layer address used in static assignment must be unique within a node." @ "/config/authority/router/00900bcb1f1c/node/node0/device-interface/ge-0-1/network-interface/ge-0-1_20/address/192.168.1.1/host-service/dhcp-server/address-pool/192.168.1.11/static-assignment/192.168.1.88/link-layer-address" 

2: Error: "Link layer address used in static assignment must be unique within a node." @ "/config/authority/router/00900bcb1f1c/node/node0/device-interface/ge-0-1/network-interface/ge-0-1_20/address/192.168.1.1/host-

• This error might be seen if 2 interface have same IP address configured. 
• IP address must be unique across the node.