User's Manual Part 2

RADWIN Ethernet Ring Chapter 13
RADWIN 2000 User Manual Release 2.5.40 13-2
• Ring Protection Message (RPM) - control message used to monitor and control the
ring.
RADWIN Ethernet Ring
The following figure describes the RPL behavior during a ring failure and recovery cycle.
Figure 13-1: Ring Protection mechanism
Note
RPM messages are broadcast, so it is essential (to prevent flooding) to
associate the RPL and member Ring LInks with a VLAN ID. This requires in
turn, that equipment used in the ring either supports VLAN or can
transparently pass through VLAN tagged packets.