Enterasys G-Series CLI Reference 9-1
9
Port Priority Configuration
This
chapter
describes
the
Port
Priority
set
of
commands
and
how
to
use
them.
Port Priority Configuration Summary
The
G
‐
Series
device
supports
Class
of
Service
(CoS),
which
allows
you
to
assign
mission
‐
critical
data
to
higher
priority
through
the
device
by
delaying
less
critical
traffic
during
periods
of
congestion.
The
higher
priority
traffic
through
the
device
is
serviced
first
before
lower
priority
traffic.
The
Class
of
Service
capability
of
the
device
is
implemented
by
a
priority
queueing
mechanism.
Class
of
Service
is
based
on
the
IEEE
802.1D
(802.1p)
standard
specification,
and
allows
you
to
define
eight
priorities
(0 through 7)
and
assign
them
to
transmit
queues
for
each
port.
A
priority
0 through 7
can
be
set
on
each
port,
with
0
being
the
lowest
priority.
A
port
receiving
a
frame
without
priority
information
in
its
tag
header
is
assigned
a
priority
according
to
the
default
priority
setting
on
the
port.
For
example,
if
the
priority
of
a
port
is
set
to
4,
the
frames
received
through
that
port
without
a
priority
indicated
in
their
tag
header
are
classified
as
a
priority
4
and
transmitted
according
to
that
priority.
Configuring Port Priority
Purpose
To
view
or
configure
port
priority
characteristics
as
follows:
•
Display
or
change
the
port
default
Class
‐
of
Service
(CoS)
transmit
priority
(0
through
7)
of
each
port
for
frames
that
are
received
(ingress)
without
priority
information
in
their
tag
header.
•
Display
the
current
traffic
class
mapping
‐
to
‐
priority
of
each
port.
•
Set
each
port
to
transmit
frames
according
to
802.1D
(802.1p)
priority
set
in
the
frame
header.
For information about...
Refer to page...
Port Priority Configuration Summary
9-1
Configuring Port Priority
9-1
Configuring Priority to Transmit Queue Mapping
9-4
Configuring Quality of Service (QoS)
9-6
Note:
When CoS override is enabled using the
set policy profile
command as described in “
set
policy profile
” on page 8-4, CoS-based classification rules will take precedence over priority
settings configured with the
set port priority
command described in this section.
Summary of Contents for G3G170-24
Page 1: ...Enterasys G Series Ethernet Switch CLI Reference Firmware Version 1 00 xx P N 9034358 01...
Page 2: ......
Page 30: ...xxviii...
Page 100: ...set ssl 2 56 Basic Configuration...
Page 132: ...clear lldp port tx tlv 3 32 Discovery Protocol Configuration...
Page 272: ...show spantree nonforwardingreason 6 52 Spanning Tree Configuration...
Page 296: ...set garp timer 7 24 802 1Q VLAN Configuration...
Page 384: ...clear nodealias config 11 34 Logging and Network Management...
Page 438: ...Enabling Router Configuration Modes 14 4 Preparing for Router Mode...
Page 514: ...show ip pimsm staticrp 16 56 IPv4 Routing Protocol Configuration...
Page 524: ...traceroute ipv6 17 10 IPv6 Management...
Page 602: ...show ipv6 ospf virtual link 19 46 OSPFv3 Configuration...
