
Customizing PVC Service Records and PVCs
117374-C Rev 00
6-3
Using Site Manager
To disable or reenable a PVC service record, complete the following tasks:
Defining the Service Record MTU
The MTU is the largest possible unit of data that the PVC service record can
transmit. By default, the service record allows an MTU size of 4608 octets. This
value can handle most packet sizes.
The MTU size is typically determined by the driver. However, you can override
the driver default to accommodate connection to devices that require different
MTU sizes. You can set the MTU to any value from 1 to 9188 octets.
Site Manager Procedure
You do this System responds
1. In the Configuration Manager window,
click on the ATM interface (
ATM1
) that you
want to modify.
The Select Connection Type window
opens.
2. Click on
ATM
. The Edit ATM Connector window opens.
3. Click on
Service Attributes
. The ATM Service Records List window
opens.
4. Click on the PVC service record that you
want to modify.
5. Set the
Enable/Disable
parameter. Click
on
Help
or see the parameter description
on page A-15.
6. Click on
Done
. You return to the Edit ATM Connector
window.
7. Click on
Done
. You return to the Select Connection Type
window.
8. Click on
Done
. You return to the Configuration Manager
window.
Note:
Some ATM devices do not negotiate MTU size. When connecting to
such a device, Bay Networks recommends that you specify an MTU size of
9188 octets for full compatibility with RFC 1577.
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