Overview Of Redundancy Protocols - Hirschmann RS20 User Manual

Introduction
1.2 Overview of
Redundancy Protocols
Redundancy Network topology
procedure
RSTP Random structure
Note: Up to 79 devices possible, depending on topology and configuration. If
the default values (factory settings) are used, up to 39 devices are possible,
depending on the topology
HIPER-Ring Ring
MRP-Ring Ring
Note: In combination with RSTP in MRP compatibility mode, up to 39 devices
are possible, depending on the configuration. If the default values (factory
settings) for RSTP are being used, up to 19 devices are possible
page 87 "Spanning
Fast HIPER- Ring
Ring (RSR20,
RSR30 and
MACH 1000)
Sub-Ring Ring segment
(RSR20, coupled to a primary
RSR30, ring
PowerMICE,
MACH 1000
and
MACH 4000)
Link Coupling of network
Aggregation segments via parallel
active lines with
dynamic load
distribution and line
redundancy
Table 2: Comparison of the redundancy procedures
12
Switch-over time
typically < 1 s (STP < 30 s), up to < 30 s - depends
heavily on the number of devices
(see on page 87 "Spanning
typically 80 ms, up to < 500 ms or < 300 ms (selectable)
- the number of switches has a minimal effect on the
switch-over time
typically 80 ms, up to < 500 ms or < 200 ms (selectable)
- the number of switches has a minimal effect on the
switch over time
Tree").
< 10 ms with 5 devices in ring.
With more than 5 devices, the switching time increases.
typically 80 ms, up to < 500 ms or < 200 ms (selectable)
- the number of switches has a minimal effect on the
switch over time
1.2 Overview of
Redundancy Protocols
Tree").
(see on
UM RedundConfig L2P
Release 8.0 05/2013