Understanding QoS Configuration on the Matrix N-Series
February 22, 2008
Page 12 of 29
Port-Groups: TxQ Configuration
TxQ
Port
‐
Groups
contain
user
settings
for
specific
types
of
ports
and
their
matching
transmit
queue
settings.
Port
groups
0.0
and
0.1
exist
by
default.
New
port
groups
can
be
configured
with
a
name
and
ports
can
be
added
according
to
device
port
‐
type.
Transmit
queue
behavior
can
also
be
configured
per
port
group;
port
‐
groups
0.0
and
0.1
are
configured
in
strict
queuing
mode.
Additional
port
groups
also
default
to
strict
queuing
mode,
though
each
TxQ
port
group
can
be
configured
for
weighted
‐
fair
queuing
if
desired.
The
show
cos
port
‐
config
txq
command
displays
all
configured
TxQ
port
‐
groups.
Group
name
and
type
are
displayed
as
well
as
ports
associated
with
the
port
group.
For
show
cos
port
‐
config
txq
output,
arbiter
mode
(TxQ
mode)
is
displayed
along
with
a
picture
of
the
supported
queues
and
the
number
of
slices
allotted
to
the
group.
Queuing
is
also
displayed
by
percentage.
The
following
example
displays
default
values
for
the
show
cos
port
‐
config
txq
command
output:
Additional
port
groups
can
be
created
using
the
set
cos
port
‐
config
txq
command.
Name
and
associated
ports
can
be
configured,
as
well
as
TxQ
settings.
You
need
to:
•
Identify
the
port
‐
group
for
configuration
Matrix(su)->
show cos port-config txq
* Percentage/queue (if any) are approximations based on
[(slices/queue) / total number of slices]
Transmit Queue Port Configuration Entries
----------------------------------------------------------------------
Port Group Name :DFE-P 16Q
Port Group :0
Port Type :0
Assigned Ports :ge.3.1-12;ge.4.1-9
Arbiter Mode :Strict
Slices/queue :Q [ 0]: 0 Q [ 1]: 0 Q [ 2]: 0 Q [ 3]: 0
:Q [ 4]: 0 Q [ 5]: 0 Q [ 6]: 0 Q [ 7]: 0
:Q [ 8]: 0 Q [ 9]: 0 Q [10]: 0 Q [11]: 0
:Q [12]: 0 Q [13]: 0 Q [14]: 0 Q [15]: 64
Percentage/queue :Q [ 0]: 0% Q [ 1]: 0% Q [ 2]: 0% Q [ 3]: 0%
:Q [ 4]: 0% Q [ 5]: 0% Q [ 6]: 0% Q [ 7]: 0%
:Q [ 8]: 0% Q [ 9]: 0% Q [10]: 0% Q [11]: 0%
:Q [12]: 0% Q [13]: 0% Q [14]: 0% Q [15]: 100%
----------------------------------------------------------------------
Port Group Name :DFE-P 4Q
Port Group :0
Port Type :1
Assigned Ports :ge.1.1-18;fe.2.1-48;ge.5.1-60;ge.6.1-30;ge.7.1-30
Arbiter Mode :Strict
Slices/queue :Q [ 0]: 0 Q [ 1]: 0 Q [ 2]: 0 Q [ 3]: 32
Percentage/queue :Q [ 0]: 0% Q [ 1]: 0% Q [ 2]: 0% Q [ 3]: 100%
----------------------------------------------------------------------
