Comtrol RocketLinx ES7528 User Manual page 73

Redundant Ring
Device Priority The switch with highest priority (highest value) is automatically selected as the Ring Master. When one
of the ring ports on this switch becomes a forwarding port and the other one becomes a blocking port.
If all of the switches have the same priority, the switch with the highest MAC address is selected as the
Ring Master.
Ring Port1 In a Rapid Super Ring environment, you should have two Ring Ports. Whether this switch is a Ring
Master or not. When configuring Rapid Super Rings, two ports should be selected to be Ring Ports. For
a Ring Master, one of the ring ports becomes the forwarding port and the other one becomes the
blocking port.
Path Cost Change the Path Cost of Ring Port1, if this switch is the Ring Master of a Ring, then it determines the
blocking port. The Port with higher Path Cost in the two ring ports becomes the blocking port, If the
Path Cost is the same, the port with larger port number becomes the blocking port.
Ring Port2 Assign another port for ring connection.
Path Cost Change the Path Cost of Ring Port2.
Rapid Dual Homing Rapid Dual Homing is an important feature of Rapid Super Ring redundancy technology. When you
want to connect multiple RSR or form redundant topology with other vendors, RDH allows you to
have a maximum of seven multiple links for redundancy without any problem.
In Rapid Dual Homing, you do not need to configure a specific port to connect to other protocol. The
Rapid Dual Homing selects the fastest link for the primary link and blocks all the other links to avoid a
loop. If the primary link failed, Rapid Dual Homing automatically forwards the secondary link for a
network redundant. If there are more connections, they are standby links and are recovered if both
primary and secondary links are broken.
Ring status To enable/disable the Ring. Please remember to enable the ring after you add it.
MultiRing This technology allows you to aggregate multiple rings within one switch. Create multiple ring IDs and
assign different ring Port1 and Port2 to each ring. Thus, the switch can have up to 14 rings in one
RocketLinx ES7528.
When implementing MultiRing, remember that the different rings can NOT use the same ring ID. The
other settings are the same as the above description. Technically, the maximum ring volume the
MultiRing support is up to 16 rings. Due to the power volume limitation, RocketLinx ES7528 supports
up to 14 rings.
Trunk Ring The MultiRing technology is part of the Redundant Ring technology which combines Redundant Ring
with the port trunking technology. After multiple ports are aggregated, so-called port trunking, the
Trunk ID can be one of the port IDs of the Redundant Ring technology. Configure the port trunking
first then configure the Trunk Ring in the managed switch.
Apply Click Apply to apply the settings.
Note: You must Save the settings (Page 137), if you want to maintain these settings if the RocketLinx
Redundant Ring
ES7528 is powered off.
RocketLinx ES7528 Industrial Managed PoE Rack Mount User Guide: 2000509 Rev. A - 73
Description
Redundant Ring