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Moxa Managed Ethernet Switch
Redundancy Protocol (UI 2.0)
User's Manual
Edition 4.0, September 2017
www.moxa.com/product
Models covered by this manual:
EDS-528E, EDS-518E, EDS-510E, EDS-G508E, EDS-G512E,
EDS-G512E-8PoE, EDS-G516E, IKS-6726A, IKS-6728A,
IKS-6728A-8PoE, IKS-G6524A, IKS-G6824A, ICS-G7526A, ICS-G7826A,
ICS-G7528A, ICS-G7828A, ICS-G7748A, ICS-G7848A, ICS-G7750A,
ICS-G7850A, ICS-G7752A, ICS-G7852A Series
© 2017 Moxa Inc. All rights reserved.
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Related Manuals for Moxa Technologies EDS-518E
Summary of Contents for Moxa Technologies EDS-518E
- Page 1 Redundancy Protocol (UI 2.0) User’s Manual Edition 4.0, September 2017 www.moxa.com/product Models covered by this manual: EDS-528E, EDS-518E, EDS-510E, EDS-G508E, EDS-G512E, EDS-G512E-8PoE, EDS-G516E, IKS-6726A, IKS-6728A, IKS-6728A-8PoE, IKS-G6524A, IKS-G6824A, ICS-G7526A, ICS-G7826A, ICS-G7528A, ICS-G7828A, ICS-G7748A, ICS-G7848A, ICS-G7750A, ICS-G7850A, ICS-G7752A, ICS-G7852A Series © 2017 Moxa Inc. All rights reserved.
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Page 2: Copyright Notice
Moxa Managed Ethernet Switch Redundancy Protocol (UI 2.0) User’s Manual The software described in this manual is furnished under a license agreement and may be used only in accordance with the terms of that agreement. Copyright Notice © 2017 Moxa Inc. All rights reserved. Trademarks The MOXA logo is a registered trademark of Moxa Inc. -
Page 3: Table Of Contents
Table of Contents Introduction to Redundancy Protocol ....................1-1 Turbo Ring ............................2-1 The Turbo Ring Concept ........................2-2 Setting up “Turbo Ring” or “Turbo Ring V2” .................... 2-2 Determining the Redundant Path of a “Turbo Ring” Ring..............2-2 Determining the Redundant Path of a “Turbo Ring V2” Ring .............. 2-3 Ring Coupling Configuration ...................... -
Page 4: Introduction To Redundancy Protocol
Introduction to Redundancy Protocol Setting up Redundancy Protocol on your network helps protect critical links against failure, protects against network loops, and keeps network downtime at a minimum. Redundancy Protocol allows you to set up redundant loops in the network to provide a backup data transmission route in the event that a cable is inadvertently disconnected or damaged. - Page 5 Managed Ethernet Switch Redundancy Protocol (UI 2.0) Introduction to Redundancy Protocol Gigabit Ethernet Redundant Ring Capability (< 50 ms) Ethernet has become the default data communications medium for industrial automation applications. In fact, Ethernet is often used to integrate video, voice, and high-rate industrial application data transfers into one network.
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Page 6: Turbo Ring
Turbo Ring The following topics are covered in this chapter: The Turbo Ring Concept Setting up “Turbo Ring” or “Turbo Ring V2” Determining the Redundant Path of a “Turbo Ring” Ring Determining the Redundant Path of a “Turbo Ring V2” Ring ... -
Page 7: The Turbo Ring Concept
Managed Ethernet Switch Redundancy Protocol (UI 2.0) Turbo Ring The Turbo Ring Concept Moxa developed the proprietary Turbo Ring protocol to optimize redundancy and achieve a faster recovery time on the network. The Turbo Ring and Turbo Ring V2 protocols identify one switch as the master of the network, and then automatically block packets from traveling through any of the network’s redundant loops. -
Page 8: Determining The Redundant Path Of A "Turbo Ring V2" Ring
Managed Ethernet Switch Redundancy Protocol (UI 2.0) Turbo Ring When the Number of Switches in the Turbo Ring is Odd If there are 2N+1 switches (an odd number) in the “Turbo Ring” ring, with switches and segments labeled counterclockwise, then segment N+1 will serve as the backup path. - Page 9 Managed Ethernet Switch Redundancy Protocol (UI 2.0) Turbo Ring Ring Coupling for a “Turbo Ring” Ring To configure the Ring Coupling function for a “Turbo Ring” ring, select two switches (e.g., Switch A and B in the above figure) in the ring, and another two switches in the adjacent ring (e.g., Switch C and D). Decide which two ports in each switch are appropriate to be used as coupling ports, and then link them together.
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Page 10: Dual-Ring Configuration (Applies Only To "Turbo Ring V2")
Managed Ethernet Switch Redundancy Protocol (UI 2.0) Turbo Ring ATTENTION Ring Coupling only needs to be enabled on one of the switches serving as the Ring Coupler. The Coupler must designate different ports as the two Turbo Ring ports and the coupling port. NOTE You do not need to use the same switch for both Ring Coupling and Ring Master. -
Page 11: Configuring "Turbo Ring" And "Turbo Ring V2
Managed Ethernet Switch Redundancy Protocol (UI 2.0) Turbo Ring Configuring “Turbo Ring” and “Turbo Ring V2” Use the scrollbar at the top of the Redundancy Protocol page to select Turbo Ring, Turbo Ring V2, Turbo Chain, RSTP, or MSTP. Note that the configuration pages for these five protocols are different. Protocol Setting Description... - Page 12 Managed Ethernet Switch Redundancy Protocol (UI 2.0) Turbo Ring Ring: Turbo Ring Status Shows Healthy if the ring is operating normally, and shows Break if the ring’s backup link is active. Ring: 1st Port Status / Ring: 2nd Port Status The “Ports Status”...
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Page 13: Configuring "Turbo Ring V2
Managed Ethernet Switch Redundancy Protocol (UI 2.0) Turbo Ring Configuring “Turbo Ring V2” The following figure indicates which Turbo Ring V2 parameters can be configured. A more detailed explanation of each parameter follows. NOTE When using the Dual-Ring architecture, you must configure settings for both Ring 1 and Ring 2. In this case, the status of both rings will appear under “Status.”... - Page 14 Managed Ethernet Switch Redundancy Protocol (UI 2.0) Turbo Ring Ring 1/2: 1st Port Status / Ring 1/2: 2nd Port Status The “Ports Status” indicators show Forwarding for normal transmission, Blocking if this port is connected to a backup path and the path is blocked, and Link down if there is no connection. Ring Coupling: Role Indicates None, Dual Homing, or Ring Coupling.
- Page 15 Managed Ethernet Switch Redundancy Protocol (UI 2.0) Turbo Ring NOTE The Turbo Ring DIP Switches located on the outer casing of the EDS E series switches can be used to configure switch Turbo Ring protocols (Turbo Ring or Turbo Ring V2). If the Turbo Ring DIP Switch is enabled from any access interface (web-based UI, console, or Telnet), and the 4 DIP Switch on the switch outer casing is set to ON, the Redundancy Protocol will be set automatically to...
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Page 16: Turbo Chain
Turbo Chain The following topics are covered in this chapter: The Turbo Chain Concept Setting Up Turbo Chain Configuring “Turbo Chain” Head Switch Configuration Member Switch Configuration Tail Switch Configuration... -
Page 17: The Turbo Chain Concept
Managed Ethernet Switch Redundancy Protocol (UI 2.0) Turbo Chain The Turbo Chain Concept Moxa’s Turbo Chain is an advanced software technology that gives network administrators the flexibility of constructing any type of redundant network topology. When using the “chain” concept, you first connect the Ethernet switches in a chain and then simply link the two ends of the chain to an Ethernet network, as illustrated in the following figure. -
Page 18: Head Switch Configuration
Managed Ethernet Switch Redundancy Protocol (UI 2.0) Turbo Chain The following figures indicate which Turbo Chain parameters can be configured. A more detailed explanation of each parameter follows. Head Switch Configuration Member Switch Configuration Tail Switch Configuration... - Page 19 Managed Ethernet Switch Redundancy Protocol (UI 2.0) Turbo Chain Explanation of “Status” Items Active Protocol Shows which redundancy protocol is in use: Turbo Ring, Turbo Ring V2, Turbo Chain, RSTP, MSTP or None. Port Shows which ports have been assigned for redundancy protocol usage. Port Role Shows the role that has been assigned to any specific redundancy port: Head, Member, or Tail.
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Page 20: Stp/Rstp/Mstp
STP/RSTP/MSTP The following topics are covered in this chapter: The STP/RSTP/MSTP Concept What is STP? How STP Works Differences between STP, RSTP, and MSTP STP Example Using STP on a Network with Multiple VLANs ... -
Page 21: The Stp/Rstp/Mstp Concept
Managed Ethernet Switch Redundancy Protocol (UI 2.0) STP/RSTP/MSTP The STP/RSTP/MSTP Concept Spanning Tree Protocol (STP) was designed to help reduce link failures on a network, and provide an automatic means of avoiding loops. This is particularly important for networks that have a complicated architecture, since unintended loops in the network can cause broadcast storms. -
Page 22: How Stp Works
Managed Ethernet Switch Redundancy Protocol (UI 2.0) STP/RSTP/MSTP LAN 1 Bridge B Bridge A LAN 2 Bridge C LAN 3 What happens if a link failure is detected? As shown in next figure, the STP process reconfigures the network so that traffic from LAN segment 2 flows through bridge B. LAN 1 Bridge B Bridge A... -
Page 23: Differences Between Stp, Rstp, And Mstp
Managed Ethernet Switch Redundancy Protocol (UI 2.0) STP/RSTP/MSTP STP Calculation The first step of the STP process is to perform calculations. During this stage, each bridge on the network transmits BPDUs. The following items will be calculated: • Which bridge should be the Root Bridge. The Root Bridge is the central reference point from which the network is configured. -
Page 24: Stp Example
Managed Ethernet Switch Redundancy Protocol (UI 2.0) STP/RSTP/MSTP STP Example The LAN shown in the following figure has three segments, with adjacent segments connected using two possible links. The various STP factors, such as Cost, Root Port, Designated Bridge Port, and Blocked Port are shown in the figure. -
Page 25: Using Stp On A Network With Multiple Vlans
Managed Ethernet Switch Redundancy Protocol (UI 2.0) STP/RSTP/MSTP Using STP on a Network with Multiple VLANs IEEE Std 802.1D, 1998 Edition, does not take into account VLANs when calculating STP information—the calculations only depend on the physical connections. Consequently, some network configurations will result in VLANs being subdivided into a number of isolated sections by the STP system. - Page 26 Managed Ethernet Switch Redundancy Protocol (UI 2.0) STP/RSTP/MSTP The following figure indicates which Spanning Tree Protocol parameters can be configured. A more detailed explanation of each parameter follows. Explanation of “Status” Items Active Protocol Shows which redundancy protocol is in use: Turbo Ring, Turbo Ring V2, Turbo Chain, RSTP, MSTP, or None.
- Page 27 Managed Ethernet Switch Redundancy Protocol (UI 2.0) STP/RSTP/MSTP Max. Age (sec.) Setting Description Factory Default If this device is not the root, and it has not received a hello message from the root in an amount of time equal to “Max. Numerical value input Age,”...
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Page 28: Configuring Mstp
Managed Ethernet Switch Redundancy Protocol (UI 2.0) STP/RSTP/MSTP Configuring MSTP Use the scrollbar at the top of the Redundancy Protocol page to select Turbo Ring, Turbo Ring V2, Turbo Chain, RSTP, or MSTP. Note that configuration pages for these five protocols are different. Protocol Setting Description... - Page 29 Managed Ethernet Switch Redundancy Protocol (UI 2.0) STP/RSTP/MSTP Hello time (sec.) Setting Description Factory Default Numerical value input by user The root of the Spanning Tree topology periodically (1-10) sends out a “hello” message to other devices on the network to check if the topology is healthy. The “hello time”...
- Page 30 Managed Ethernet Switch Redundancy Protocol (UI 2.0) STP/RSTP/MSTP Vlan Mapping Setting Description Factory Default Numerical value input by user Configure which VLAN ID is mapped to the multiple None (1-4094) spanning-tree instances. Bridge priority Setting Description Factory Default Numerical value selected by Increase this device’s bridge priority by selecting a 32768 user...
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Page 31: Configuration Limits Of Stp/Rstp
Managed Ethernet Switch Redundancy Protocol (UI 2.0) STP/RSTP/MSTP Configuration Limits of STP/RSTP The Spanning Tree Algorithm places limits on three of the configuration items described previously: [Eq. 1]: 1 sec ≦ Hello Time ≦ 10 sec [Eq. 2]: 6 sec ≦ Max. Age ≦ 40 sec [Eq. -
Page 32: V-On
V-ON The following topics are covered in this chapter: The V-ON Concept V-ON Topology Overall Network Fast Recovery Local Network Fast Recovery Instructions for Setting Up V-ON... -
Page 33: The V-On Concept
Managed Ethernet Switch Redundancy Protocol (UI 2.0) V-ON The V-ON Concept Moxa’s V-ON (Video-Always-ON) technology is a solution to make networks more reliable. If there is a communication error on a network, V-ON can help ensure downtime is effectively eliminated. V-ON can guarantee the following recovery times: •... -
Page 34: V-On Topology
Managed Ethernet Switch Redundancy Protocol (UI 2.0) V-ON V-ON Topology V-ON can be adapted for use in many applications but can generally be classified into two types: Overall network fast recovery (layer 2 + layer 3 networks) • Layer 2 unicast and multicast recovery times of less than 50 ms •... -
Page 35: Local Network Fast Recovery
Managed Ethernet Switch Redundancy Protocol (UI 2.0) V-ON Local Network Fast Recovery If a mission-critical application only uses on pure layer 2 networks, V-ON can be used to guarantee the fast recovery of unicast and multicast transmissions in the layer 2 network. For example, in a simple PLC network such as the one depicted in the diagram below, the network can achieve recovery times in layer 2 unicast and multicast networks of less than 50 ms. - Page 36 Managed Ethernet Switch Redundancy Protocol (UI 2.0) V-ON Enable IGMP Snooping (Global) Setting Description Factory Default Enable/Disable Select the Enable IGMP Snooping checkbox near the top of the Disabled window to enable the IGMP Snooping function globally. Query Interval (sec) Setting Description Factory Default...
- Page 37 Managed Ethernet Switch Redundancy Protocol (UI 2.0) V-ON NOTE Ports of Turbo Ring's layer 2 switches that connect to Turbo Chain should be enabled as the static multicast querier port. Step 4. Enable VRRP Fast Switchover Mode for two layer 3 switches – In the VRRP Settings page, as shown below, both VRRP and VRRP Fast Switchover Mode should be enabled.
- Page 38 Managed Ethernet Switch Redundancy Protocol (UI 2.0) V-ON NOTE When enabling VRRP Fast Switchover Mode: • The maximum number of VRRP Interfaces is 60 • The Advertisement Interval will be fixed as 25 ms • The Preemption Mode will be disabled •...