Platform Notes: The SunATM Driver Software

LAN Emulation Connections

There are several connections established at all times when a host is a member of an emulated LAN. The following table outlines the various LAN Emulation-related connections that should be on a LAN Emulation client (LEC).


Note -

Use the command qccstat(1M) to view all existing connections for a given interface.


Table 5-1 LAN Emulation Connections

VCC 

Endpoints 

Comments 

Configuration Direct 

LEC --> LECS 

This connection is not required to remain open after the initial join of the emulated LAN, and thus may time out after a host has joined the LAN. 

Control Direct 

LEC --> LES 

Point-to-point connection over which the host may send LE ARP requests and receive responses from the LES. 

Control Distribute 

LES --> LEC 

Point-to-multipoint connection over which the LES may send administrative information to all hosts. Hosts may not send on this connection. 

Multicast Send 

LEC --> BUS 

Point-to-point connection over which the host may send broadcast messages to the BUS. A limited amount of data is also allowed on this connection. 

Multicast Forward 

BUS --> LEC 

Point-to-multipoint connection over which the BUS sends broadcast messages. Hosts may not send on this connection.