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A~H with their respective weight value:8~1,the packets are sent in the following sequence:A1,B1, C1,D1, E1,F1, G1,H1,A2,B2, C2,D2,E2, F2,G2,A3,B3, C3,
D3,E3,F3,A4,B4,C4,D4, E4,A5,B5,C5, D5,A6,B6,C6,A7,B7,A8,A1,B1,C1,D1, E1,F1, G1,H1.
For weighted round-robin queuing,if each CoS queue has the same weight value,then each CoS queue has an equal opportunity to send packets just like round-
robin queuing.
For weighted round-robin queuing,if the weight for a CoS is set to 0,then it will continue processing the packets from this CoS until there are no more packets
for this CoS.The other CoS queues that have been given a nonzero value,and depending upon the weight,will follow a common weighted round-robin scheme.
Remember that the AT-9724TS has 7 configurable priority queues (and seven Classes of Service) for each port on the Switch.
ƽ Caution: The Switch contains eight classes of service for each port on the Switch.One of these classes is reserved for internal use on the
Switch and is therefore unconfigurable.All references in the following section regarding classes of service will refer to only the seven classes of
service that may be used and configured by the Switch’s Administrator.
Bandwidth Control
The bandwidth control settings are used to place a ceiling on the transmitting and receiving data rates for any selected port.In the Configuration folder,click
Bandwidth Control,to view the screen shown below.
Figure 6- 48.Bandwidth Settings and Port Bandwidth Table
The f
ollo
wing parameters can be set or ar
e displa
yed:
Parameter Description
Unit
Choose the Switch ID number of the Switch in the switch stack to be modified.
Fr
om/T
o
A consecutiv
e gr
oup of por
ts may be configured starting with the selected port.
Type This drop-down menu allows you to select between RX (receive,) TX (transmit,) and Both.This setting will
determine whether the bandwidth ceiling is a
pplied to r
eceiving,
transmitting,
or both r
eceiving and transmitting
packets.
no_limit This drop-down menu allows you to specify that the selected port will have no bandwidth limit.Enabled
disables the limit.
Rate This field allows you to enter the data rate,in Mbit/s,that will be the limit for the selected port.
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Allied Telesyn AT-9724TS High-Density Layer 3 Stackable Gigabit Ethernet Switch