PT CPC5565, Руководство пользователя, Страница: 47 / 118

BIOS Configuration Overview
47
MAC Address Handling Configuration
Selecting the MAC Address Handling Configuration option on the Switch Configuration
submenu brings up the screen shown in
Figure 3-9 , where the MAC handling options can be
configured.
The options for MAC Address handling include:
• Address learning enable or disable
• Reserved multicast forwarding enable or disable
Disabling address learning causes all packets received on a port to be forwarded to all other
ports in the ingress port's VLAN. This can be useful in network configurations where there is a
path for packets to flow from a port in one VLAN to a port in another VLAN. See
“Network
Architecture Considerations,” on page 48 . The default setting is to enable MAC address
learning.
Disabling reserved multicast forwarding causes the embedded switch to discard packets with
DA MAC addresses in the range of 01-80-C2-00-00-02 through 01-80-C2-00-00-0F. These
addresses are typically used for protocols such as:
• Link-Aggregation-Control-Protocol (LACP)
• 802.1x Port Authentication
• Multiple-VLAN-Registration-Protocol (MVRP)
• Link-Layer-Discovery-Protocol (LLDP)
If hosts attached to any of the ports of the embedded Ethernet switch participate in any of these
protocols and require packets to be sent through the embedded switch, then this option must
be set to forward these packets. The default configuration is to not forward these packets.
Figure 3-9: MAC Address Handling Configuration Screen
BIOS SETUP UTILITY
MAC Address Handling Configuration
ESC
Save and Exit
Select Item
F10
General Help F1
Enabled = Allow switch
to learn source MAC
address.
Disabled = Disable
learning of MAC
addresses.
Enter
MAC Address Learning
Reserved Mcast Forward
[Enabled]
[Disabled]
Select Screen
Change Option
Exit
Advanced