This object sets the maximum number of learned and static MAC address entries allowed in the forwarding database for a specific VPLS pseudowire binding, where a value of zero means no limit is enforced. An administrator sets a non-zero limit to protect the forwarding table from being exhausted by a MAC flooding attack or misbehaving device on that pseudowire. For example, setting jnxVplsLdpPwBindMacAddressLimit to 500 on a customer-facing pseudowire caps how many distinct MAC addresses that binding can learn, preventing one runaway customer site from consuming shared forwarding table resources.