1-10Protocols and StandardsRFC 3619 Extreme Networks' Ethernet Automatic Protection Switching (EAPS) Version 1 is related toRRPP.RRPP Configuration Task Listz RRPP does not have an auto election mechanism, so you must configure each node in the ringnetwork properly for RRPP to monitor and protect the ring network.z Before configuring RRPP, you need to construct a ring-shaped Ethernet topology physically.You can create RRPP domains based on service planning, specify control VLANs and data VLANs foreach RRPP domain, and then determine the ring roles and node roles based on the traffic paths in eachRRPP domain. You can configure devices through the following configurations.Complete the following tasks to configure RRPP:Task DescriptionConfiguring Master Node RequiredConfiguring Transit Node OptionalConfiguring Edge Node OptionalConfiguring Assistant Edge Node OptionalConfiguring Ring GroupOptionalTo reduce Edge-Hello traffic, you can adopt the ring groupmechanism, that is, assign subrings with the same edgenode/assistant-edge node to a ring group.z It is recommended to configure the primary ring first and then the subring when you configure anRRPP domain. Moreover, a Ring ID cannot be applied to more than one RRPP ring in one RRPPdomain.z If a device lies on multiple RRPP rings in an RRPP domain, only one primary ring exists. Thedevice serves as either an edge node or an assistant-edge node on the subrings.z The total number of rings configured on a device in all RRPP domains cannot be greater than 16.z Modification of node mode, port role and ring level of an RRPP ring is prohibited after configuration.If needed, you must first delete the existing configuration.z During load balancing configuration, different protected VLANs must be configured for differentdomains.Ports connected to an RRPP ring must meet the following conditions: