SmartRG SR516ac User Manual page 24

Field Name Description
Select DSL Latency Select the level of DSL latency. Options are:
l
l
Select DSL Link Select the linking protocol. Options are:
Type
l
l
l
Encapsulation Mode Select whether multiple protocols or only one protocol is carried per PVC (Permanent Virtual Circuit).
Options are:
l
l
l
l
Service Category Select the bit rate protocol. Options are:
l
l
l
l
l
Select Scheduler Select the algorithm used to schedule queue behavior. VC scheduling is different than scheduling done
for Queues of Equal for default queues. Options are:
Precedence as the
l
Default Queue
l
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Path0 (Fast): No error correction and can provide lower latency on error-free lines. This is the
default.
Path1 (Interleaved): Error checking that provides error-free data which increases latency.
EoA: Ethernet over ATM, used for PPPoE, IPoE, and Bridge. This is the default.
PPPoA: Point-to-Point Protocol over ATM.
IPoA: Internet Protocol over ATM.
LLC/ENCAPSULATION: (Available for PPPoA only) Logical Link Control (LLC) encapsulation protocols
used with multiple PVCs
LLC/SNAP-BRIDGING: (Available for EoA only) Logical Link Control used to carry multiple protocols
in a single PVC.
LLC/SNAP-ROUTING: (Available for IPoA only) LLC used to carry one protocol per PVC.
VC/MUX: Virtual Circuit/Multiplexer creates a virtual connection used to carry one protocol per
PVC.
UBR without PCR: Unspecified Bit Rate with no Peak Cell Rate, flow control or time 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.
CBR: Constant Bit Rate relies on timing synchronization to make the network traffic predictable.
Used commonly in Video and Audio traffic network applications.
Non Realtime VBR: Non Realtime Variable Bit Rate used for connections that transport traffic at a
variable rate. This category requires a guaranteed bandwidth and latency. It does not rely on tim-
ing synchronization between the destination and source.
Realtime VBR: Realtime Variable Bit Rate. Same as the above option but relies on timing and syn-
chronization between the destination and source. This category is commonly used in networks with
compressed video traffic.
Round Robin (weight=1): Packets are accessed in a round robin style. Classes can be assigned.
Time slices are assigned to each process in equal portions and in circular order, handling all pro-
cesses without priority (also known as cyclic executive). This is the default.
Weighted Fair Queuing: Packets are assigned in a specific queue. This data packet scheduling
technique allows different scheduling priorities to be assigned to statistically multiplexed data
flows. Since each data flow has its own queue, an ill-behaved flow (that sent larger packets or
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