Sun Microsystems 3U 用户手册
72
SunATM 3U CompactPCI Adapter Installation and User’s Guide • February 2001
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).
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 7-1
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.
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.
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.
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.
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.
BUS sends broadcast messages. Hosts may not
send on this connection.