3Com MSR 30, MSR 50 manual Fr lmi n392dte, Syntax fr lmi n392dte n392-value Undo fr lmi n392dte

392CHAPTER 22: FRAME RELAY CONFIGURATION COMMANDS

Example # Set frame relay interface Serial 2/0 to operate in DCE mode and set N392 to 5 and N393 to 6.

<Sysname> system-view [Sysname] interface serial2/0 [Sysname-Serial2/0] link-protocol fr

[Sysname-Serial2/0] fr interface-type dce

[Sysname-Serial2/0] fr lmi n392dce 5

[Sysname-Serial2/0] fr lmi n393dce 6

fr lmi n392dte

Syntax fr lmi n392dte n392-value

undo fr lmi n392dte

View Interface view

Parameter n392-value: The value of N392 parameter at the DTE side. It ranges from 1 to 10.

Description Use the fr lmi n392dte command to set N392 parameter at the DTE side.

Use the undo fr lmi n392dte command to restore the default.

By default, the parameter value is 3.

The DTE sends a Status-Enquiry packet at a regular interval to the DCE to inquire the link status. On receiving this packet, the DCE will immediately send a Status-Response packet. If the DTE does not receive the response packet in the specified time, it will record the error by adding 1 to the error count. If the errors exceed the threshold, the DTE will consider that the physical channels and all the DLCIs to be unavailable.

N392 and N393 together define the “error threshold”. N393 indicates the event number observed and N392 indicates the error threshold of that number (N393). That is, if N392 errors occurred in N393 Status-Enquiry packets in the DTE, the DTE would consider that the error had exceeded the threshold and declare the physical channels and all DLCIs to be unavailable.

N392 at DTE side should be less than N393 at DTE side.

Example # Set the operation of frame relay interface Serial 2/0 as the DTE mode and set N392 to 5 and N393 to 6.

<Sysname> system-view [Sysname] interface serial2/0 [Sysname-Serial2/0] link-protocol fr

[Sysname-Serial2/0] fr interface-type dce

[Sysname-Serial2/0] fr lmi n392dce 5

[Sysname-Serial2/0] fr lmi n393dce 6