Installation guide
AT-2973SX, AT-2973T, AT-2973T/4, and AT-VNC10S Adapters Installation and User’s Guide
117
Jumbo Packet Enables the network adapter to 
transmit and receive oversized 
Ethernet frames that are greater 
than 1514 bytes, but less than or 
equal to 9000 bytes in length 
(9600 bytes for network adapters 
that operate at 10 Gbps). This 
property requires the presence of 
a switch that is able to process 
jumbo frames. This property is 
only available for Broadcom 
NetXtreme adapters.
Frame size is set at 1500 bytes by 
default. To increase the size of the 
received frames, raise the byte 
quantity in 500-byte increments.
1. In Microsoft Windows, right-
click the Network Adapter in 
Network Connections, and 
then click Properties.
2. Click the Configure button and 
then the Advanced tab.
3. Enter the desired Jumbo 
Packet value.
Locally 
Administered 
Address
The Locally Administered Address 
is a user-defined MAC address 
that is used in place of the MAC 
address originally assigned to the 
network adapter. Every adapter in 
the network must have its own 
unique MAC address. This locally 
administered address consists of a 
12-digit hexadecimal number.
 Value - Assigns a unique node 
address for the adapter.
 Not Present (default) - Uses 
the factory-assigned node 
address on the adapter.
The appropriate assigned ranges 
and exceptions for the locally 
administered address include the 
following:
 The range is 
00:00:00:00:00:01 to 
FF:FF:FF:FF:FF:FD.
 Do not use a multicast address 
(least significant bit of the high 
byte = 1).
 Do not use all 0s or all Fs.
1. In Microsoft Windows, right-
click the Network Adapter in 
Network Connections, and 
then click Properties.
2. Click the Configure button and 
then the Advanced tab.
3. Enter the desired network 
address value.
Table 13. Advanced Features in Microsoft Windows
Feature Description Configuration Steps










