GR

GR can be expanded in two ways:

• graceful restart

  Many Internet routers implement a separation of control and forwarding functions. These routers can continue to forward data while the control software is restarted or reloaded. This function is called graceful restart. A successful graceful restart requires the use of a GR helper.

• geo-redundancy

  GR is an essential element of a disaster-recovery redundancy model. See DR.