Cabletron Systems FRM User Manual - page 40
3-4
Frame Relay Module 4. 0 User G uide, Rev 01
●
Virtual LAN ID
(Chapter 9), which identifies a virtual bridge that connects the
internal LLC2 function to the LAN interface.
●
Originated LLC2 Host
(Chapter 9), which maps connectivity at the LLC level
between the FRM and the AS/400. (The FRM initiates LLC sessions with the
host.) For this example, assume the host number is 0. (It can be 0–128, but iden-
tification can be easier if the host on the LAN side has the same number as the
LAN card number, which is always 0 or 1.)
●
Terminated LLC2 Host
(Chapter 9), whose address must match the frame relay
interface to which the 5494 device will transmit. Note that the remote FRM must
have a corresponding originated LLC2 host. For this example, assume the host
number is 2.
●
LAN LLC2 Interface
(Chapter 9), which defines an interface to the LAN. For
this example, assume the interface number is 0. (It can be 0–95, but as with the
hosts, identification can be easier if the interface on the LAN side has the same
number as the LAN card number.)
●
Frame relay terminated LLC2 Interface
(Chapter 9), which defines an LLC2 ter-
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 LLC2). For this
example, assume the interface number is 0. Note that the remote FRM must
have a corresponding originated LLC2 Interface.
Figure 3-4 Local FRM in Configuration Example 3
Some sample LLC2 parameter values to configure on the local FRM are:
●
Virtual LAN ID –
007
(hex).
●
LLC2 Host 0:
◆
Host MAC Address –
4000000000470
. This is the AS/400 targeted 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 FRM will use to send frames to the AS/400. The last four digits are
0000
for the first 57 Host SAPs (service access points) used to connect to the
Local FRM
Host 2
Terminated
Host 0
Originated
Interface 2
Frame Relay
Terminated
Interface 0
LAN