Mac Address Supported Features - Fujitsu PRIMERGY BX900 User Manual

2.1.1

MAC Address Supported Features

MAC Address Capacity Support
The Ethernet Connection Blade Module supports up to 8K/32K MAC addresses for SB11a/SB11. The
Ethernet Connection Blade Module reserves specific MAC addresses for system use.
Static MAC Entries
MAC entries can be manually entered in the Bridging Table, as an alternative to learning them from
incoming frames. These user-defined entries are not subject to aging, and are preserved across resets
and reboots.
Self-Learning MAC Addresses
The Ethernet Connection Blade Module enables automatic MAC address learning from incoming
packets. The MAC addresses are stored in the Bridging Table
Automatic Aging for MAC Addresses
MAC addresses from which no traffic is received for a given period are aged out. This prevents the
Bridging Table from overflowing.
Port Security
Port security prevents unauthorized users from accessing your network. It allows each port to learn, or
be assigned, a list of MAC addresses for devices authorized to access the network through that port.
Any packet received on the port must have a source address that appears in the authorized list,
otherwise it will be dropped. Port security is disabled on all ports by default, but can be enabled on a
per-port basis.
Address Filtering
This Ethernet Connection Blade provides a packet filter for all traffic entering the CPU port and hence
potentially forwarded or routed to the management network. The packet filter is rule/pattern based and
constitutes a set of patterns which when matched will DROP the packet, and a further set of patterns
which when matched will ACCEPT the packet.
MAC Multicast Support
Multicast service is a limited broadcast service, which allows one-to-many and many-to-many
connections for information distribution. Layer 2 Multicast services is where a single frame is addressed
to a specific Multicast address, from where copies of the frame are transmitted to the relevant ports.
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