Avaya M770 Managing the LECS

Avaya M770 ATM Switch User’s Guide 189

Managing the LECS

This chapter describes how to use the command-line interface to manage the LECS

in the Avaya M770 ATM Switch. For information about how to access and use the

Avaya M770 ATM Switch command-line interface, see Chapter 3, “How to Use the

Command-line Interface”.

Any ATM network using LANE must have one active LECS that acts as a central

coordinator, making sure that all LECs join the correct ELANs, even though there

may be a number of resilient (standby) LECS.

Each ATM module can host the LECS locally or look for a remote LECS. A remote

LECS can be in another module, switch, or in an end-station such as a NetWare

server.

The LECS type can be configured as a:

• Local Simple LECS

This will force all local LECs to use the local LECS in the M770 ATM Switch.

•Local Resilient LECS

This resilient LECS will enter the election and will need to be elected to become

the active elected LECS. If the resilient LECS is not elected, it will become a

standby LECS. For more information about the election process, see Proprietary

resilient LECS in Chapter 13, “LANE Services”.

• Remote LECS

This will force all local LECs to use a remote LECS in the network.

Advertised address of a LECS

You can specify the address that the LECS will be advertising. By default on the

M770ATM Switch the management LEC and LES/BUS will seek a remote LECS at

the WKA.

For information on how to change the location of the LECS, see Changing the

location of the LECS later in this chapter.

A local LECS in a M770 ATM Switch can be configured to advertise one of the

following addresses:

• The WKA (Well-Known Address). The ATM Forum defines this address as

47.00.79.00.00.00.00.00.00.00.00.00.00.00.A0.3E.00.00.01.00

• The 19 byte module address and a specific selector