Reference: Ipqos And Modified Ieee 802.1P To Switch Queue Mapping - ZyXEL Communications MSC1024G Series User Manual

Chapter 13 Profile Screens
Table 168 IPQoS Profile (continued)
LABEL
CIR
PBS
CBS
Level
Weight
Apply
New
Cancel
Index
Name
Modify
Delete
13.23.5 Reference: IPQoS and Modified IEEE 802.1p to Switch Queue
Mapping
Changing the IEEE 802.1p to switch queue mapping is not recommended since it may result in
unexpected queuing behavior. This is because even if you change the mapping between the
IEEE 802.1p priorities and the switch queues, the system still uses the same mapping between
the switch queues and the IPQoS profile queues. Here are some examples.
388
DESCRIPTION
CIR is Committed Information Rate. Enter the maximum data rate (64~65532 kbps)
guaranteed to flow through this device all the time. You must enter the number which is a
multiple of 64. See Section 13.23 on page 373
Note: CIR < PIR <= two times of CIR in a queue. For example, CIR is
1024, you must enter the PIR in the same queue equal or less than
2048 (2 x 1024).
PBS is Peak Burst Size. Enter the maximum packet size (3072~65536 bytes) allowed to
flow through this device at peak hour. You must enter the number which is a multiple of
256. See Section 13.23 on page 373
CBS is Committed Burst Size. Enter the maximum packet size (3072~65536 bytes)
guaranteed to flow through this device all the time. You must enter the number which is a
multiple of 256. See Section 13.23 on page 373
Note: The CBS should be equal to or less than PBS in a queue.
Set the queue's priority level. The larger the number, the higher the priority.
You can configure different IPQoS profiles with queues that have the same queue priority
level. IPQoS then uses Weighted Round Robin (WRR) scheduling to service these
queues on a rotating basis based on their queue weight. Use these fields to set the
priority weight (1~127) of each queue in an IPQoS profile. The higher a queue's weight,
the more service it gets.
Click Apply to save the changes in this screen to the system's volatile memory. The
system loses these changes if it is turned off or loses power, so use the Config Save on
the navigation panel and then the Save button to save your changes to the non-volatile
memory when you are done configuring.
While you are modifying a profile, you can click New to start configuring a fresh profile
without saving your changes.
Click Cancel to start configuring the screen again.
This is the index number of the IPQoS profile.
This is the name of the IPQoS profile.
Select a profile's Select radio button and click Modify to edit the profile.
Select a profile's Select radio button and click Delete to remove the profile.
for more information.
for more information.
for more information.
MSC1000G/1024G/1224G Series User's Guide