
Site Manager WAN Line Services Parameters
117021-A Rev. A A-47
Parameter: Burst Count
Path: COM Connector > Edit Line > Edit Sync Parameters
Default: Enable
Options: Enable
| Disable
Function: This is a performance-tuning parameter. Enable sets single-word DMA burst
cycles. Disable sets eight-word burst cycles.
Instructions: Leave this parameter enabled except when excessive TxUflo or RxOflo errors
occur on the Ethernet ports of
• DSDE (5430 - Dual Synchronous, Dual Ethernet) link module
• DSE (5420 - Dual Synchronous, Single Ethernet) link module
Disable this parameter on the synchronous interface that is either running at a
lower clock speed or carrying lower-priority traffic. If disabling Burst Count on
only one DSDE interface does not eliminate errors on both Ethernet interfaces,
disable it on both synchronous interfaces.
MIB Object ID: 1.3.6.1.4.1.18.3.4.5.1.17
Parameter: Service
Path: COM Connector > Edit Line > Edit Sync Parameters
Default: LLC1
Options: Transparent
| LLC1 | LAPB
Function: Specifies the link-level protocol for this circuit. If you set this parameter to
Transparent, then raw HDLC mode is in effect. LLC1 specifies connectionless
datagram service; it prefixes the HDLC address and control fields to the frame.
Instructions: Set this parameter as appropriate for this circuit. If X.25 is enabled on this line,
you must set this parameter to LAPB.
MIB Object ID: 1.3.6.1.4.1.18.3.4.5.1.18
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