![]() To prevent this from happening, Cumulus Linux filters frames before MAC learning occurs. ![]() ![]() This can be a security or resource problem as the MAC address table has the potential to get filled with bogus MAC addresses a malfunctioning host, network error, loop, or malicious attack on a shared layer 2 platform can create an outage for other hosts if the same MAC address is learned on another port. This is due to how the hardware learns MAC addresses and occurs before the ACL lookup. ![]() On Broadcom switches, a MAC address is learned on a bridge regardless of whether or not a received packet is dropped by an ACL. If you are redirected to the main page of the user guide, then this page may have been renamed please search for it there. The current version of the documentation is available If you are using the current version of Cumulus Linux, the content on this page may not be up to date.
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