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Allied Telesis AT-9924T-40 How To Configure EPSR, Configuring EPSR, i. Configure the control VLAN

Models: AT-9924SP-30 AT-9924T-40 AT-8948 AT-9924T/4SP-A-20 X900-48FE-N

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How To Configure EPSR

How To Configure EPSR

How To Configure EPSR

This section first outlines, step-by-step, how to configure EPSR. Then it discusses changing the settings for the control VLAN, if you need to do this after initial configuration.

Configuring EPSR

1.Connect your switches into a ring

EPSR does not in itself limit the number of nodes that can exist on any given ring. Each switch can participate in up to 16 rings.

If you already have a ring in a live network, disconnect the cable between any two of the nodes before you start configuring EPSR, to prevent a loop.

2.On each switch, configure EPSR

On each switch, perform the following configuration steps. Configuration of the master node and each transit node is very similar.

i. Configure the control VLAN

This step creates the control VLAN and adds the ring ports to it as tagged ports.

Enter the commands:

create vlan=control-vlan-name vid=control-vid

add vlan=control-vidport=ring-portsframe=tagged

Note that you can use trunk groups for the ring ports.

ii. Configure the data VLAN

This step creates the data VLAN (or VLANs—you can have as many as you want) and adds the ring ports as tagged ports.

Enter the commands:

create vlan=data-vlan-name vid=data-vid

add vlan=data-vidport=ring-portsframe=tagged

The two ring ports must belong to the control VLAN and all data VLANs.

Page 8 AlliedWare™ OS How To Note: EPSR

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Allied Telesis AT-9924T-40, X900-48FE-N, AT-8948 How To Configure EPSR, Configuring EPSR, Connect your switches into a ring

Contents

Detecting a Fault on page Recovering from a Fault on page How To Configure EPSR on page Example 1 A Basic Ring on pageIntroduction What information will you find in this document?Ports and Recovery Times on page IGMP Snooping and Recovery Times on pageEPSR State and Settings on page SNMP Traps on page Counters on page Which products and software versions does it apply to?How EPSR Works EPSR ComponentsEstablishing a Ring Page 4 AlliedWare OS How To Note EPSRRecovering from a Fault Fault in a link or a transit nodeMaster Node States Transit Node StatesFault in the master node Restoring Normal Operation Master NodeTransit Nodes with One Port Down Transit Nodes with Both Ports DownHow To Configure EPSR Configuring EPSR1. Connect your switches into a ring 2. On each switch, configure EPSRiii. Remove the ring ports from the default VLAN iv. Configure the EPSR domainv. Enable EPSR 3. Configure other ports and protocols as requiredModifying the Control VLAN Page 10 AlliedWare OS How To Note EPSRConfigure the Master Node A Example 1 A Basic Ring1. Create the control VLAN 2. Add the ring ports to the control VLANConfigure the Transit Nodes B and C 5. Remove the ring ports from the default VLAN8. Enable EPSR 6. Create the EPSR domain8. Enable EPSR Page 13 AlliedWare OS How To Note EPSR6. Create the EPSR domain 7. Add the data VLAN to the domain1. Configure the master node switch A for domain Example 2 A Double RingDomain diagram2. Configure the transit node switch B that belongs just to domain 3. Configure the master node switch C for domain4. Configure the transit node switch D that belongs just to domain Page 15 AlliedWare OS How To Note EPSR5. Configure the transit node switch E that belongs to both domains Page 16 AlliedWare OS How To Note EPSR1. Configure the master node switch A for the EPSR domain Example 3 EPSR and RSTPRSTP DomainSwitches C and D have the same configuration in this example Configure the STP VLANRemove the STP VLAN’s ports from the default VLAN Configure STP4. Configure switch E for EPSR and RSTP Page 19 AlliedWare OS How To Note EPSRExample 4 EPSR with Nested VLANs EPSR Domain1. Configure the master node switch A for the EPSR domain Page 21 AlliedWare OS How To Note EPSR3. Configure client switch E connected to the master node 4. Configure client switch F connected to transit node B5. Configure client switch G connected to transit node C 6. Configure client switch H connected to transit node DExample 5 EPSR with management stacking Example 5 EPSR with management stacking1. Configure stacking on the master node for the EPSR domain host1 2. Configure stacking on the first transit node host23. Configure stacking on the second transit node host3 Page 24 AlliedWare OS How To Note EPSR4. Configure the other VLANs on the stacked switches 5. Configure EPSR on the stacked switchesConfigure the AT-TN7100 iMAP as Master Node Example 6 EPSR with an iMAPChecking the Master Node Configuration Page 27 AlliedWare OS How To Note EPSRshow epsr show epsr=testConfigure the AT-TN7100 iMAP as a Transit Node Checking the Transit Node ConfigurationPage 28 AlliedWare OS How To Note EPSR Example 6 EPSR with an iMAPClassifiers and Hardware Filters Classifiers and Hardware FiltersPorts and Recovery Times set igmpsnooping vlan=vlan-name1..4094all querysolicit=onyestrue IGMP Snooping and Recovery TimesHealth Message Priority Transit Node in a Complete Ring EPSR State and SettingsMaster Node in a Complete Ring EPSR State and Settings Page 33 AlliedWare OS How To Note EPSRSNMP Traps Transit Node in a ring that had failures CountersMaster node in aComplete ring Debugging Link Down Between Master Node and Transit NodeMaster Node Node A Debug Output 1. The master node sends Health messages2. The master node continues sending Health messages 3. The primary port goes downPage 37 AlliedWare OS How To Note EPSR DebuggingPage 38 AlliedWare OS How To Note EPSR 4. The master node receives a Link-Down message on its secondary port5. The master node transmits a Ring-Down-Flush-FDB message 6. The Hello timer expires 8. The Hello timer expires again7. The primary port comes back up Page 39 AlliedWare OS How To Note EPSR9. The master node receives the Health message on its secondary port 10. The master node returns the ring to a state of Complete11. The master node receives the Ring-Up-Flush-FDB message on port Page 40 AlliedWare OS How To Note EPSRDebugging 12. The master node transmits and receives Health messagesPage 41 AlliedWare OS How To Note EPSR Transit Node Node B Debug Output 1. The transit node receives Health messagesPage 43 AlliedWare OS How To Note EPSR 2. Port 1 on the transit node goes down3. The transit node receives a Ring-Down-Flush-FDB message Page 44 AlliedWare OS How To Note EPSR 4. Port 1 comes back up5. Transit node receives a Health message 6. Transit node receives a Ring-Up-Flush-FDB message Page 45 AlliedWare OS How To Note EPSR7. The transit node receives Health messages Page 46 AlliedWare OS How To Note EPSRLink Down Between Two Transit Nodes on the master node, and then on transit node BMaster Node Node A Debug Output 1. The master node sends Health messages2. The link between the two transit nodes goes down 3. The master node receives a Link-Down message on its secondary portPage 48 AlliedWare OS How To Note EPSR Debugging4. The master node transmits a Ring-Down-Flush-FDB message 5. The master node receives a second Link-Down messagePage 49 AlliedWare OS How To Note EPSR DebuggingPage 50 AlliedWare OS How To Note EPSR 6. The master node continues sending Health messages7. The master node receives a Health message 8. The master node returns the ring to a state of Complete 9. The master node receives the Ring-Up-Flush-FDB message on portPage 51 AlliedWare OS How To Note EPSR DebuggingDebugging 10. The master node transmits and receives Health messagesPage 52 AlliedWare OS How To Note EPSR Page 53 AlliedWare OS How To Note EPSR Transit Node Node B Debug Output1. The transit node receives Health messages 2. The link between the two transit nodes goes down3. The transit node receives a Ring-Down-Flush-FDB message 4. The transit node sends a Link-Down messagePage 54 AlliedWare OS How To Note EPSR 5. The transit node receives Health messages 6. The link comes back up7. The transit node receives another Health message Page 55 AlliedWare OS How To Note EPSR8. The transit node receives a Ring-Up-Flush-FDB message 9. The transit node receives Health messages