RaaS Configuration Terms and Definitions lists terms and definitions used in this security mode configuration discussion.
RaaS Configuration Terms and Definitions
| Term | Definition |
|---|---|
| Shortest Path Bridging (SPB) | Shortest Path Bridging (SPB), defined in IEEE 802.1aq, is a protocol that provides data traffic a shortest cost path between any pair of switches in the SPB network, and features dynamic route calculation in a loop-free Layer-2 network, and fast convergence time using IS-IS. |
| Helper router | An SPB switch node that ingresses customer VLANs, is configured for VRRP, contains route table entries confined to connected VLAN interfaces, and is able to forward all packets with destinations external to the connected customer VLANs to the Main Router. |
| Main Router | A standard L3 router within the SPB network that is configured for VRRP and used to forward all packets external to the directly connected Helper Router VLANs. |
| Routing as a Service (RaaS) | A L2 feature using SPBV that provides for scalable and efficient virtualized routing over any L2 network infrastructure, by scaling the fabric from a single chassis to a collection of devices that use L2 protocols to form its topology. |
| Main router ID | A router ID in an IPv4 format that identifies the router as a Main router in the RaaS network. |
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