Serial port configuration task list
48
OnSite 2800 Series User Manual
4 • Serial port configuration
Transmit Edge : normal
Port Type : DTE
CRC Type : CRC-16
Max Frame Length: 2048
Recv Threshold : 1
Encapsulation : framerelay
Enter Frame Relay mode
This section describes how to configure Frame Relay on the serial interface of an OnSite router, after setting
the basic serial interface parameters according to the previous sections.
This procedure describes how to enter the Frame Relay configuration mode
Mode:
Administrator execution
Example:
Enter Frame Relay mode
The following example shows how to enter into the Frame Relay configuration mode for the serial interface on
slot 0 and port 0 of an OnSite router.
2800(cfg)#port serial 0 0
2800(prt-ser)[0/0]#framerelay
2800(frm-rel)[0/0]#
Configuring the LMI type
For a Frame Relay network, the line protocol is the periodic exchange of local management interface (LMI)
packets between the OnSite device and the Frame Relay provider equipment. If the OnSite device is attached
to a public data network (PDN), the LMI type must match the type used on the public network.
You can set one of the following three types of LMIs on the OnSite devices:
•
ansi
for ANSI T1.617 Annex D,
•
gof
for
Group of 4
, which is the default for Cisco LMI, and
•
itu
for ITU-T Q.933 Annex A.
This procedure describes how to set the LMI type.
Mode:
Frame Relay
Example:
Configuring the LMI type
The following example sets the LMI type to ANSI T1.617 Annex D for Frame Relay over the serial interface
on slot 0 and port 0.
Step
Command
Purpose
1
node
(cfg)#port serial
slot port
Selects the serial interface on slot and port
2
node
(prt-ser)[
slot/port
]#framerelay
Enters the Frame Relay configuration mode
3
node
(frm-rel)[
slot/port
]#
Displays the Frame Relay configuration mode prompt
Step
Command
Purpose
1
node
(frm-rel)[
slot/port
]#lmi-type {ansi | gof | itu}
Sets the LMI type
