HSR and PRP Topologies

The chapter outlines the HSR and PRP supported topologies.

HSR Ring

In an HSR Ring, an HSR RedBox is connected directly to the Raptor platform switch. The Port-I can be isolated via a VLAN to a single port on the switch. Alternatively, the switch can be used to connect multiple SAN devices directly to the HSR ring.

Figure 1. HSR Ring

PRP

For PRP, a PRP RedBox is connected directly to the Raptor platform switch. The Port-I can be isolated via a VLAN to a single port on the switch. Alternatively, the switch can be used to extend the LAN A or LAN B PRP networks.

Figure 2. PRP

HSR-PRP Coupling

In HSR-PRP coupling, setting up the redundant switch to HSR-PRP-A or HSR-PRP-B depends on the LAN to the Raptor platform switch is connected. The Port-I can be isolated via a VLAN to a single port on the switch. Alternatively, the switch can be used to extend the LAN A or LAN B PRP networks.

Figure 3. HSR-PRP-A

Figure 4. HSR-PRP-B

RSTP – HSR Interconnection

Two HSR RedBoxes in Mode R can connect an HSR ring in two locations to an RSTP network to avoid a single point of failure between the networks with RSTP failover time. The Port-I is connected directly to an RSTP network through the switch.

Figure 5. RSTP – HSR Interconnection

QuadBox

QuadBox requires two redundancy switches in HSR-HSR mode which allows two HSR rings to be connected together. No traffic will be exchanged between the QuadBox and the switch.

Figure 6. HSR-HSR QuadBox