
Editing AppleTalk Parameters
117366-A Rev. A 4-9
Parameter: Checksum Enable
Default: Disable
Options: Enable
| Disable
Function: Enables or disables the calculation of the DDP checksum for packets that
the AppleTalk router originates on this interface.
With checksumming enabled, the AppleTalk router calculates and
includes a 16-bit checksum in the headers of DDP datagrams that it
originates. With checksumming disabled, the router inserts a value of 0
into DDP datagrams that it originates.
This parameter has no effect on incoming packets. If the router receives a
packet containing a checksum, it verifies the checksum value.
Instructions: We recommend accepting the default value, Disable. If this circuit
contains excess noise, you can enable checksumming to ensure packet
integrity.
MIB Object ID: 1.3.6.1.4.1.18.3.5.4.3.1#6
Parameter: TR End Station
Default: Disable
Options: Enable
| Disable
Function: Specifies whether this interface is enabled for source routing endstation
support.
Instructions: Set to Enable if (1) this interface is a Token Ring circuit and (2) if source
routing is enabled on the AppleTalk routers in this ring.
MIB Object ID: 1.3.6.1.4.1.18.3.5.4.3.1#7
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