• Author : Jayden Navarro

 
 

IPv6 Router Advertisement Consistency Logging

IPv6 Router Advertisement Consistency Logging, when enabled, allows for notification through syslogging of incoming router advertisement inconsistencies compared to internal configuration. Detected inconsistencies may indicate that one or more routers are misconfigured, and could warrant further investigation. Consistency requirements are defined in RFC 4861 Section 6.2.7. Platform compatibility All models supported by EOS-4.20.1F Configuration IPv6 Router Advertisement Consistency Logging is disabled by default. The feature can be enabled using: Arista(config)#ipv6 nd ra consistency-check default The feature can be disabled using: Arista(config)#no ipv6 nd ra consistency-check default In order to check prefix information for consistency, the prefix must be configured on...
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Incoming LACPDU Rate-Limit

Incoming LACPDU Rate-Limit on Arista switches allows for errdisabling of ports experiencing a sustained rate of incoming LACPDUs greater than or equal to 10 packets per second. This feature has been introduced in 4.18.0F. Platform compatibility All models supported by EOS-4.18.0F Configuration Incoming LACPDU Rate-Limit is enabled by default, but can be configured on a global or per-port basis. The per-port config will override the global config unless it is set to default. The feature is either enabled or disabled, and currently does not support a user configurable threshold. Global config for LACPDU Rate-Limit can be disabled using: Arista(config)#no lacp...
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LACP on Loopback Interfaces

LACP on Loopback Interfaces allows for Active Port-Channels on one or more interfaces whose link endpoints terminate on the same switch. This feature has been introduced in 4.18.0F and is applicable in custom scenarios where there is a requirement to connect multiple interfaces, back to back, on the same physical switch and form a bundled port-channel. Previously, such a scenario was only possible using a static lag, however, with this feature we introduce the capability to run LACP on such a port-channel which helps with link down discovery via the propagation of LACP PDUs. Platform compatibility All models supported by...
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LACP State Transition Event Monitoring

LACP State Transition Event Monitoring on Arista switches allows for quick and filterable viewing of LACP state transitions for easy debugging. This feature has been introduced in 4.17.0F. Platform compatibility All models supported by EOS-4.17.0F Show Commands LACP State Transition Event Monitoring allows for terse and verbose output, but for the purposes of diagnosing problems in realtime the verbose output is most suitable, and this document will focus on the verbose output. The verbose output is organized into a table which displays the time the state transition occurred, the port on which this event occurred, the Port-Channel name associated with...
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