3Com CoreBuilder 2500 Software Installation And Release Notes page 42

42 A B: A
PPENDIX DMINISTERING
ATM
3 Enter the LECS access type. Choices are lecs and manual.
If you choose LECS as your means of joining an ELAN, and another
CoreBuilder system provides LES and BUS services, you must update the
directly attached ATM switch LECS with the ELAN name and the
corresponding LES address.
4 Enter the name of the emulated LAN to which you are adding the client,
or press Return to choose the default ELAN shown in brackets. The ELAN
name may contain a maximum of 32 characters.
5 Enter the maximum transmission unit (MTU), also known as maximum
frame size. Choices are Unspecified, 1516, and 4544.
The system supports Unspecified Bit Rate (UBR) only.
All LECs within the same emulated LAN must have the same MTU size.
Enter Unspecified to allow the LES to select an appropriate MTU size.
6 Enter enable for the enable state for the next reboot.
7 Repeat steps 1 through 6 to define other LECs.
8 Enable STP to eliminate potential bridge loops. From the top level of the
Administration Console, enter:
bridge stpState enabled
9 Reboot to enable all newly defined LECs.
Sample procedure:
Select menu option (atm/lane/lec):
Select ATM port [1]:
Enter LEC access type (lecs, manual) [lecs]:
Enter Elan Name []:
Enter Elan MTU Size (Unspecified,1516,4544) [Unspecified]:
Enter Enable State for next reboot (disable, enable)
[enable].
You must REBOOT to be able to enable a newly created LEC.
Reboot after you have added all newly created LECs.
define
Elan_1