Contemporary Control Systems Compact Managed Switches Software Manual for Web Browser - Manual (Page 47)

TD020851-0MG
47
4.4.9.3.2 RapidRing and Other Management Features
As a rule, when the RRPs are used for the RapidRing, they should not be involved with
other management features. Specific issues are described below.
Port Parameters — If RapidRing is enabled, port options (Figure 11, upper panel) are
not available for the RRPs. That is, the ring ports cannot be disabled nor can their
configuration be changed.
Trunking — RapidRing and trunking cannot use the same ports. If a ring port exists as
part of a trunk, the ring cannot be enabled. Either remove the ring port(s) from the trunk
or disable the trunk that includes the ring port(s). Otherwise, the ring cannot be
established. Once a ring is enabled, its ports cannot be added to a trunk.
Mirroring — RapidRing ports may be mirrored like any other port, but neither RRP
should be designated as the Mirror Port (see Section 4.4.3).
VLANs — The RRPs must be included in the same VLAN or in none at all.
Multicast Filtering and Static Forwarding — RRPs may be used for these functions,
but the backup RRP (of the ring master) is normally unavailable.
QoS — RRPs do support QoS.
4.4.9.3.3 Multiple RapidRings
RapidRing will also support up 100 interconnected rings (each having its own ID
number) — allowing greater flexibility of wiring and network styles. Figure 37 shows two
rings connected via two redundant network links — thus protecting against failure of a
single cable within the trunk. (However, the two rings could be connected by just one
link, if inter-ring redundancy were not required.) The two switches providing the inter-
ring connection may be either master or slave and may use any available non-RRP.
Figure 37 — Dual RapidRings
To set up the RapidRing, select System Configuration, then Configure Redundancy
(described in Section 4.4.9) then select the RapidRing ® option. Also, if the two rings are
to have redundant lines between them, configure a trunk between the two switches that
connect the rings together. (See Section 4.4.2 for configuring a trunk).