IBM SG24-4817-00 manual Subnet Mask, Default Gateway, Individual MAC Address

This soft copy for use by IBM employees only.

Note

There is a well-known restriction that the IP interfaces of the IBM 8285 and the IBM 8260 should not use IP network number 10 because it is use d on their internal network. This restriction applies not only to the CIP interface of the IBM 8285 but also to that of the LECs. It is planned to remove this restriction when the control point code supports PNNI phase 1, expected in 1997.

−Subnet Mask

The mask used to allocate the IP address bits. Must match the mask used by the default gateway.

−Default Gateway

Specify the address to forward packets to to reach other IP networks when communicating with an IP device beyond the IP network. In the LANE network, the default gateway should be an IP router on the same ELAN of the IP device or on a legacy LAN via a LANE bridge on the same ELAN.

−Individual MAC Address

Specify the individual MAC address of the LEC. The address format should be canonical for Ethernet ELAN and non-canonical for token-ring ELAN and both universal and local administered address (UAA/LAA) are supported. It should be unique throughout the transparent bridging network and in a source routing bridging segment just like the MAC address on a legacy LAN.

−Associated LES or LECS ATM address

Specify the ATM address of the LES with which to register or the LECS which knows the ATM address of a designated LES. The LES will be used for resolving ELAN MAC addresses in to ATM addresses.

To get the designated LES ATM address, the following options are offered:

-Use a pre-defined LES ATM Address

If you don′t have the LECS on the ELAN, you have to specify the LES ATM address in each LEC definition.

When the 8285 LEC is attached to this type of ELAN, the SET DEVICE LAN_EMULATION_CLIENT command with the parameter

NO_LECS_WITH_LES followed by the LES ATM address is used to pre-define the LES ATM address.

-Use a pre-defined LECS ATM address

If you have the LECS on the ELAN but don′t want to use dynamic address resolution, you can specify the LECS ATM address on each LEC definition.

When the 8285 LEC is attached to this type of ELAN, the SET DEVICE LAN_EMULATION_CLIENT command with the parameter

NO_LES_WITH_LECS followed by the LECS ATM address is used to pre-define the LECS ATM address.

-Use a dynamic LECS ATM address

134ATM Workgroup Solutions: Implementing the 8285 ATM Switch