| Payload
Type Indicator (PTI) |
|
|
|
|
| One
PTI bit is used in |
|||
| AAL 5 |
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| User data /
control data |
|||
| Traffic management |
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|
|
|
|
|
|
| 0 0 0 User data cell, no congestion. ATM-user
indication = 0 |
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| 0 0 1 User data cell, no congestion. ATM-user
indication = 1 |
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| 0 1 0 User data cell, congestion. ATM-user
indication = 0 |
|||||
| 0 1 1 User data cell, congestion. ATM-user
indication = 1 |
|||||
| 1 0 0 OAM F5 segment associated cell |
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| 1 0 1 OAM F5 end-to-end associated cell |
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| 1 1 0 Resource management cell |
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| 1 1 1 Reserved for future VC functions |
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