Restrictions for VPLS
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Layer 2 protocol tunneling configuration is not supported
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Virtual Circuit Connectivity Verification (VCCV) ping with explicit null is not supported.
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The switch is supported if configured only as a spoke in hierarchical Virtual Private LAN Services (VPLS) and not as a hub.
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Layer 2 VPN interworking functions are not supported.
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ip unnumbered command is not supported in Multiprotocol Label Switching (MPLS) configuration.
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Virtual Circuit (VC) statistics are not displayed for flood traffic in the output of show mpls l2 vc vcid detail command.
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Dot1q tunnel configuration is not supported in the attachment circuit.
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On a Cisco StackWise Virtual Multichassis EtherChannel configured on a VPLS network that supports IGMP snooping, if the number of IGMP join requests exceed 12000, and also if a changeover happens, then a traffic drop occurs for around 40 seconds after the standby switch joins back on the Cisco StackWise Virtual.