EAPS configuration on Extreme Switches

Why EAPS?

• The networking industry has relied on the Spanning Tree Protocol (STP) in large Layer 2 networks to provide a certain level of redundancy.
• However, STP has proven inadequate to provide the level of resiliency required for real-time and mission critical applications.
• Ethernet Automatic Protection Switching (EAPS) is Extreme Networks’ solution for fault-tolerant Layer 2 ring topologies.
• EAPS is responsible for a loop-free operation and a sub-second ring recovery.
• This revolutionary technology provides end users with a continuous operation usually only available in voice networks and does so with radical simplicity.

Configuration

• For our example let’s take first domain e1-domain, where we have 192.168.1.1 switch as master node and all other switches as transit node

Creating and configuring EAPS Domains

• Master node configuration
  • Create EAPS domain

    switch192-168-1-1 # create eaps e1-domain

  • Configure switch as Master node

    switch192-168-1-1 # configure e1-domain mode master

  • Configure port 1 as primary port

    switch192-168-1-1 # configure eaps e1-domain primary port 1

  • Configure port 2 as secondary port

    switch192-168-1-1 # configure eaps e1-domain secondary port 2

• Transit node configuration
  • Create EAPS domain

    switch192-168-1-2 # create eaps e1-domain

  • Configure switch as Transit node

    switch192-168-1-2 # create e1-domain mode transit

  • Configure port 1 as primary port

    switch192-168-1-2 # configure eaps e1-domain primary port 1

  • Configure port 2 as secondary port

    switch192-168-1-2 # configure eaps e1-domain secondary port 2

Creating and configuring EAPS Control VLANs

• Create control VLAN

  switch192-168-1-1 #create vlan control-1

• Tag control Vlan

  switch192-168-1-1 #configure vlan control-1 tag 1

• Add ports to control Vlan

  switch192-168-1-1 #configure vlan control-1 add ports 1,2 tagged

• Add control Vlan to EAPS domain

  switch192-168-1-1 #configure eaps e1-domain add control vlan control-1

• Run the above commands on all switches that are part of same ring, domain

Creating and configuring EAPS Shared Ports

• On master node sharing common link
  • create a shared port

    switch192-168-1-1 #create eaps shared-port 1

  • on Master node, configure shared port as partner mode

    switch192-168-1-1 #configure eaps shared-port 1 mode partner

  • Give link ID to common link

    switch192-168-1-1 #configure eaps shared-port 1 link-id 200

• On transit node sharing common link
  • create a shared port

    switch192-168-1-2 #create eaps shared-port 1

  • on transit node, configure shared port as controller mode

    switch192-168-1-2 #configure eaps shared-port 1 mode controller

  • Give link ID to common link

    switch192-168-1-2 #configure eaps shared-port 1 link-id 200

Enabling EAPS Protocol and EAPS Domain

• Enable EAPS on all master and transit node (only certain domain)

  switch192-168-1-1 #enable eaps e1-domain

• Enable EAPS globally on switch

  switch192-168-1-1 #enable eaps

Creating and configuring EAPS Protected VLANs

• create protected Vlan

  switch192-168-1-1 #create vlan voice-100

• Tag protected Vlan

  switch192-168-1-1 #configure voice-100 tag 100

• Add protected Vlan to eaps domain

  switch192-168-1-1 #configure eaps e1-domain add protected vlan voice-100

• Add ports to protected Vlan

  switch192-168-1-1#configure vlan voice-100 add ports 1,2 tagged

Verifying EAPS Configuration and Operating State

• Show eaps status

  switch192-168-1-1 #show eaps

• Show eaps status for particular domain

  switch192-168-1-1#show eaps e1-domain