ADTRAN SmartRG SR555ac User Manual page 26

Field Name Description
Select DSL Latency Select the level of DSL latency. Options are:
Select DSL Link Select the linking protocol. Options are:
Type
Encapsulation Mode Select whether multiple protocols or only one protocol is carried per PVC (Permanent Virtual Circuit). Options
are:
Select the bit rate protocol. Options are:
Service Category
Minimum Cell Rate Enter the number of cells per second for applying shaping. Options are 1 - 0. The default is -1 (no shaping).
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Path0 (Fast): No error correction and can provide lower latency on error-free lines. This is the
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default.
Path1 (Interleaved): Error checking that provides error-free data which increases latency.
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EoA: Ethernet over ATM, used for PPPoE, IPoE, and Bridge. This is the default.
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PPPoA: Point-to-Point Protocol over ATM.
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IPoA: Internet Protocol over ATM.
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LLC/ENCAPSULATION: (Available for PPPoA only) Logical Link Control (LLC) encapsulation
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protocols used with multiple PVCs
LLC/SNAP-BRIDGING: (Available for EoA only) Logical Link Control used to carry multiple
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protocols in a single PVC.
LLC/SNAP-ROUTING: (Available for IPoA only) LLC used to carry one protocol per PVC.
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VC/MUX: Virtual Circuit/Multiplexer creates a virtual connection used to carry one protocol per
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PVC.
UBR without PCR: Unspecified Bit Rate with no Peak Cell Rate, flow control or time
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synchronization between the traffic source and destination. Commonly used with applications
that can tolerate data / packet loss.
UBR with PCR: Same as above but with a Peak Cell Rate.
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CBR: Constant Bit Rate relies on timing synchronization to make the network traffic
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predictable. Used commonly in Video and Audio traffic network applications.
Non Realtime VBR: Non Realtime Variable Bit Rate used for connections that transport traffic
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at a variable rate. This category requires a guaranteed bandwidth and latency. It does not rely
on timing synchronization between the destination and source.
Realtime VBR: Realtime Variable Bit Rate. Same as the above option but relies on timing and
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synchronization between the destination and source. This category is commonly used in
networks with compressed video traffic.
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