Is the hold time standardized? Is there a standard or reliable recommendation for a timeout? I am well aware that a SOHO non-managed switch requires a shorter timer than a data-center switch.
That was my starting point:
- IETF: None specified. RFC 826, An Ethernet Address Resolution Protocol: It may be desirable to have table aging and/or timeouts. The implementation of these is outside the scope of this protocol.
Various platforms, various timers: