Understanding QoS Configuration on the Matrix N-Series
February 22, 2008
Page 10 of 29
Determining CoS Port-Type
Based
on
physical
capability,
all
physical
DFE
ports
belong
to
one
of
two
port
‐
types.
The
importance
of
this
port
‐
type
distinction
lies
in
the
resources
available
for
Transmit
Queue
and
Inbound
Rate
Limiting
CoS
features.
The
nomenclature
distinguishes
the
types
as
port
type
0
and
port
type
1.
The
Enterasys
Matrix
DFE
7GR4270
‐
12,
7G4270
‐
12,
7G4270
‐
09,
and
7G4270
‐
10
modules
have
a
port
type
of
0.
All
other
modules
have
a
port
type
of
1.
TxQ
Port
type
0
supports
sixteen
transmit
queues,
while
type
1
supports
four.
Use
the
show
cos
port
‐
type
txq
to
display
all
the
system
ʹ
s
ports
currently
associated
to
each
type.
The
following
example
displays
default
values
for
the
show
cos
port
‐
type
txq
command
output:
IRL
Type
0
supports
thirty
‐
two
Inbound
Rate
Limiters,
while
type
1
supports
eight.
Use
the
show
cos
port
‐
type
irl
command
to
display
the
two
port
types
and
their
associated
ports.
Matrix(su)->
show cos port-type txq
Number of resources: Supported rate types:
txq = transmit queue(s) perc = percentage
irl = inbound rate limiter(s) pps = packets per second
orl = outbound rate limiter(s) Kbps = kilobits per second
Mbps = megabits per second
Gbps = gigabits per second
Tbps = terabits per second
Number of
slices /
Port type Number of Supported Eligible Unselected
Index description queues rate type ports ports
----- ------------ --------- --------- ----------------- -----------------
0 DFE-P 16Q 64/16 perc ge.3.1-12; ge.3.1-12;
Kbps ge.4.1-9 ge.4.1-9
Mbps
Gbps
1 DFE-P 4Q 32/4 perc ge.1.1-18; ge.1.1-18;
Kbps fe.2.1-48; fe.2.1-48;
Mbps ge.5.1-60; ge.5.1-60;
Gbps ge.6.1-30; ge.6.1-30;
ge.7.1-30 ge.7.1-30
