Zte ZXR10 2900E series Configuration Manual page 62

ZXR10 2900E Series Configuration Guide
MAC address table
operation
MAC filtering function
MAC address learning
control
MAC learning number limit
MAC alarm control
MAC address fixed function
MAC information display
MAC protection function
The MAC address of Ethernet NIC is 48 bits. The 48 bits include two parts. The first
24 bits are used to represent the manufacturer indicating Ethernet NIC. The remaining
24 bits are a group of sequence numbers designated by the manufacturer and named as
Organizationally Unique Identifier (OUI). The lowest bit (the most left bit in the structure)
is named as a private or group bit. If this bit is set to 0, the remaining address is a private
address.
If this bit is set to 1, the remaining address domain identifies the group address requiring
more resolution. If the whole OUI is set to 1, each site of the whole network is a destination.
That is the special engagement supported by OUI.
Configuring a MAC Address Table
The MAC table configuration includes the following commands:
SJ-20130731155059-002|2013-11-27 (R1.0)
Function
When the switch receives the packets with specified source address
or destination address, it drops them according to the source MAC
address and the destination MAC address.
MAC address learning control means MAC learning can provide
three types of learning modes including hardware wire-speed
learning, CPU controlled learning and non learning to satisfy various
user requirements. In addition, MAC learning can provide global,
port-based, Trunk-based and VLAN-based independent switches.
MAC learning number limit can configure the maximum learning MAC
address number based on global, port, TRUNK and VLAN. When the
value is reached, the new MAC address cannot be learnt.
MAC alarm control can configure the output of the common alarm
information of MAC function, for example, the number of learnt MAC
addresses is exceeded or the address is drifted.
MAC address fixed function can transform a dynamic MAC address
entry to a static or fixed MAC entry in batches. After transformation,
the static entry cannot drift. When the device is rebooted, a fixed MAC
address entry can recover and cannot disappear.
MAC information display means the current MAC function configuration
and state information can be checked.
The MAC protection function limits port access. When the number
of MAC addresses learned on a port exceeds the limit, packets with
unknown source MAC addresses are dropped. The protection action
can be set to shutdown, restrict (stopping MAC address learning,
dropping packets with unknown MAC addresses, and sending an
alarm), or protect (stopping MAC address learning, and dropping
packets with unknown MAC addresses).
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