Final answer:
In networking protocols like Cisco's GLBP, the AVG (Active Virtual Gateway) is also known as the active router, which assigns virtual MAC addresses within the GLBP group.
Step-by-step explanation:
The AVG (Active Virtual Gateway) is a component within network protocols for ensuring redundancy and load balancing of network traffic. When discussing the AVG in the context of certain protocols, such as the Cisco's proprietary Gateway Load Balancing Protocol (GLBP), it may also be referred to as the active router. While other redundancy protocols like HSRP or VRRP use the terminology of standby and master, GLBP provides a more sophisticated approach by allowing multiple routers to share the load for a single IP address and the AVG designation indicates the router currently responsible for assigning virtual MAC addresses to members of the GLBP group.