Specifications

Configuring Policy Class of Service (CoS)
SecureStack C3 Configuration Guide 8-17
Configuring Policy Class of Service (CoS)
Using Port-Based or Policy-Based CoS Settings
TheSecureStackC3supportsClassofService(CoS),whichallowsyoutoassignmission‐critical
datatoahigherprioritythroughthedevicebydelayinglesscriticaltrafficduringperiodsof
congestion.Thehigherprioritytrafficgoing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(0‐7,with7grantedhighestpriority)andupto8transmit
queues(0‐7)foreachport.
Bydefault,policy
‐basedCoSisdisabledonthedevice,anddefaultoruser‐assignedport‐based
802.1D(802.1p)settingsareusedtodeterminetransmitqueues.Whenpolicy‐basedCoSis
enabled,thedefaultanduser‐assignedpolicy‐basedsettingswilloverrideport‐basedsettings
describedinChapter 9.
Commands
Thecommandsusedtoconfigurepolicy‐basedClassofServicearelistedbelow.
Note: It is recommended that you use Enterasys Networks NetSight Policy Manager as an
alternative to CLI for configuring policy-based CoS on the switches.
For information about... Refer to page...
set cos state 8-18
show cos state 8-18
clear cos state 8-19
set cos settings 8-19
clear cos settings 8-20
show cos settings 8-21
clear cos all-entries 8-21