3-4 Smart Switch 1800 4. 0 User Guide , Rev 0 1
●Originated LLC2 Host (Chapter 9), which maps connectivity at the LLC level
between the SmartSwitch 1800 and the AS/400. (The SmartSwitch 1800 ini-
tiates LLC sessions with the host.) For thi s example, assume the host number is
0. (It can be 0–128, but identification can be easier if the host on the LAN side
has the same number as the LAN interface number, which is always 0.)
●Terminated LLC 2 Ho st ( Chapter 9), whose address must match the frame relay
interface to which the 5494 device will transmit. Note that the remote Smart-
Switc h 180 0 mu st have a correspo nd i ng originate d LL C 2 ho st. F or t his
example, assume the host number is 2.
●Ethernet LLC2 Interface (Chapter 9), which defines an interface to the Ethern et
LAN. For this example, assume the inte rface number is 0. (It can be 0–95, but a s
with the hosts, identification can be easier if the interface on the LAN side has
the same number as the LAN card number, which is always 0 in a SmartSwitch
1800.)
●Frame relay terminated L LC2 Interface (Chapter 9), whic h de fine s an LL C2 t er-
mination point at the frame relay interface. Be sure to configure the format as
8025_SRB or 8023_TB (since the AS/400 needs to see the source MAC
address, which is not passed in the third format, Native L LC2). For this
example, assume the interface number is 0. Note that the remote SmartSwitch
1800 must have a corresponding originated LLC2 Interface.
Figure 3-4 Local SmartSwitch 1800 in Configuration Example 3
Some sample LLC2 parameter v alues to configure on th e local SmartSwitch 1800 are:
●Virtual LAN ID – 007 (hex).
●LLC2 Host 0:
◆Host MAC Address – 4000000000470. This is the AS/400 targete d address.
(The 9th and 10th digits of the MAC address make up the host number.)
◆Session Type – Originated. This host will initiate the LLC2 session to the
above MAC address.
◆Routing Subscriber ID – 99*. This ID must end in an asterisk and contain
all the digits of the Local Subscriber ID (shown later in this list).
◆Source MAC Address Mask – 40000000. This is the source MAC address
the SmartSwitch 1800 will use t o send frames to th e AS/400. The last four
digits are 0000 for the first 57 Host SAPs (service access points) used to
connect to the host. For subsequent SAPs, the last four digits will be incre-
mente d to 0001, 0002, etc. (Each Host SAP address must match the Source
Local SS1800
Host 2
Terminated
Host 0
Originated
Interface 2
Frame Relay
Terminated
Interface 0
Ethernet