Dell PowerConnect B-RX Configuration Manual page 470

14
MRP phase 2
One node, is configured as the master node of the MRP ring. One of the two interfaces on the
master node is configured as the primary interface; the other is the secondary interface. The
primary interface originates Ring Health Packets (RHPs), which are used to monitor the health of
the ring. An RHP is forwarded on the ring to the next interface until it reaches the secondary
interface of the master node. The secondary interface blocks the packet to prevent a Layer 2 loops.
In MRP Phase 1, a node can have multiple MRP rings, but the rings cannot share the same
interface. Also, when you configured an MRP ring, any node on the ring that is a BigIron Chassis
device can be designated as the master node for the ring. Each ring is an independent ring and
RHP packets are processed within each ring.
FIGURE 69
398
Multiple MRP rings - MRP phase 1
Master
Node
Ring 1
port1/1 port4/1
Ring 2
port1/2 port4/2
Master
node
Ring 3
BigIron RX Series Configuration Guide
53-1001810-01