Ethernet Automatic Protection Switching

<p>Ethernet Automatic Protection Switching (EAPS) is used to create a fault tolerant <a href="/facts/Network_topology/rBYE0kke">topology</a> by configuring a primary and secondary path for each <a href="/facts/VLAN/QhdJNaWX">VLAN</a>.
</p><p>Invented by <a href="/facts/Extreme_Networks/KvjBGmj2">Extreme Networks</a> and submitted to IETF as RFC3619.  The idea is to provide highly available Ethernet switched rings (commonly used in <a href="/facts/Metro_Ethernet/mhP92HaH">Metro Ethernet</a>) to replace legacy TDM based transport protection fiber rings. Other implementations include Ethernet Protection Switching Ring (EPSR) by <a href="/facts/Allied_Telesis/SglP2MdH">Allied Telesis</a> which enhanced EAPS to provide full protected transport of IP Triple Play services (voice, video and internet traffic) for xDSL/FTTx deployments. EAPS/EPSR is the most widely deployed Ethernet protection switching solution deployed with major multi-vendor inter-operability support. The EAPS/EPSR are the basis of the ITU G.8032 Ethernet Protection recommendation. 
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Ethernet Automatic Protection Switching open-in-new

Ethernet Automatic Protection Switching