WAN Service Configuration
38
OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual
5
• WAN Services
2.
On the Menu, go to
Services Configuration
, then to
WAN
. Delete the factory default WAN services already
defined.
3.
Click on
Create a new service
in the main window, select
PPP bridged
and click on the
Continue
button.
4.
In the Description field, enter the description you wish, for example,
PPP Bridged
.
Verify the settings to be:
•
Interface = 1
•
LLC header mode = dialout
•
LLC header mode = off
•
HDLC header mode = on
•
No authentication
•
Leave
User name
and
Password
blank.
Click on
Create
.
LMI Management (Frame Relay links)
LMI Configuration
Frame Relay Local Management Interface.
The Frame Relay Local Management Interface (LMI) is a mecha-
nism that two separate frame relay systems can use to communicate the status of the interface. The LMI inter-
face allows dynamic updates on the status of the DLCI connections and the congestion state of the network.
The OnSite implements all three versions of LMI available within the frame relay network. These are defined
in
Note
LMI uses DLCI 0, but ANSI/CCITT has also reserved 1–15. Best practice
(per the recommendation) is to use only DLCIs 16–991 for FR data PVCs,
and DLCIs 0–15 for LMI PVCs.
LMI Configuration Options.
The Frame Relay Local Management Interface is configurable through either the
CLI or web interface on the OnSite device. The following variables are available for configuration.
•
managementType:
(Default Value: no_maintanence) the managementType variable defines the LMI proto-
col that will be used from the table above. The following options are available.
-
no_maintenence
: No maintenance interface will be used for this frame relay connection.
-
ITU Network:
The ITU Q.933 protocol will be used. The unit will operate as the Network side of the
connection.
Table 3. LMI Implementation on the OnSite
Protocol
Specification
Options Available
LMI
Frame Relay Forum Implementation Agreement
(IA) FRF.1 superseded by FRF.1.1
User Side
Annex D
ANSI T1.617
User Side
Annex A
ITU Q.933 referenced in FRF.1.1
User Side
