Black Box LPB2910A User Manual page 178

The p ort n umber f or w hich t he c onfiguration b elow a pplies.
CoS:

Controls t he d efault c lass o f s ervice.
All f rames a re c lassified t o a C oS. T here i s a o ne t o o ne m apping b etween C oS, q ueue, a nd p riority.
A C oS o f 0 ( zero) h as t he l owest p riority.
If t he p ort i s V LAN a ware, t he f rame i s t agged a nd T ag C lass. i s e nabled, t hen t he f rame i s c lassified
to a C oS t hat i s m apped f rom t he P CP a nd D EI v alue i n t he t ag. O therwise, t he f rame i s c lassified t o
the d efault C oS.
The c lassified C oS c an b e o verruled b y a Q CL e ntry.
NOTE: If the default CoS has been dynamically changed, then the actual default CoS is shown in
parentheses a fter t he c onfigured d efault C oS.
DPL:

Controls t he d efault d rop p recedence l evel.
All f rames a re c lassified t o a d rop p recedence l evel.
If t he p ort i s V LAN a ware, t he f rame i s t agged a nd T ag C lass. i s e nabled, t hen t he f rame i s c lassified
to a D PL t hat i s m apped f rom t he P CP a nd D EI v alue i n t he t ag. O therwise, t he f rame i s c lassified t o
the d efault D PL.
The c lassified D PL c an b e o verruled b y a Q CL e ntry.
PCP:

Controls t he d efault P CP v alue.
All f rames a re c lassified t o a P CP v alue.
If the port is VLAN aware and the frame is tagged, then the frame is classified to the PCP value in
the t ag. O therwise, t he f rame i s c lassified t o t he d efault P CP v alue.
DEI:

Controls t he d efault D EI v alue.
All f rames a re c lassified t o a D EI v alue.
If the port is VLAN aware and the frame is tagged, then the frame is classified to the DEI value in
the t ag. O therwise, t he f rame i s c lassified t o t he d efault D EI v alue.
Tag C lass. :

Shows t he c lassification m ode f or t agged f rames o n t his p ort.
Disabled: U se d efault Q oS c lass a nd D P l evel f or t agged f rames.
Enabled: U se m apped v ersions o f P CP a nd D EI f or t agged f rames.
Click o n t he m ode i n o rder t o c onfigure t he m ode a nd/or m apping.
DSCP B ased:

Click t o E nable D SCP B ased Q oS I ngress P ort C lassification.
Address M ode:

The IP/MAC address mode specifies whether the QCL classification must be based on source
(SMAC/SIP) o r d estination ( DMAC/DIP) a ddresses o n t his p ort. T he a llowed v alues a re:
Source: E nable S MAC/SIP m atching.
Destination: E nable D MAC/DIP m atching.
N : This s etting h as n o e ffect i f t he p ort i s V LAN u naware. T agged f rames
OTE
received on VLAN unaware ports are always classified to the default CoS
and D PL.
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Publication date: Sept, 2015
Revision A1