
Customizing LAN Interfaces
114078 Rev. A 3-15
To edit the MAC attributes for an FDDI line:
1. Click on Expert at the Edit FDDI Parameters window.
The FDDI Advanced Attributes window appears (refer to
Figure 3-4).
2. Click on MAC.
3. Click on MAC Attributes.
The FDDI MAC Attributes window appears.
Editing FDDI Path Attributes
You can set the target token rotation time (TTRT) carried in claim frames issued
by the FDDI station, by specifying a:
• Requested TTRT
• Maximum TTRT
• Minimum Valid Transmission Time (TVX)
In Site Manager, these are known as path attributes.
Figure 3-7 illustrates their
relationship.
Figure 3-7. Range of Values for FDDI Path Attributes
Caution: Changing any of the FDDI Advanced Attributes parameters will
affect the operation of your FDDI network. You should understand how to use
each of these parameters to improve network performance before you modify
any of them.
0 ms
2.5 ms
1336.9344 ms
TVX
Lower
Bound
T_Max Lower Bound
Requested TTRT
LS0015A
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