NEC IPASOLINK 400 Installation And Provisioning page 77

Block Function
IC (Internal Classify (map) the
Classifier) ingress frame to
internal priority
(1)
Always adds a VLAN
tag.
VLAN tag CoS value
copied from
incoming frame or
if tag missing use L3
priority value.
PO (Policer) Colour marking
based on the outer
(2)
tag CoS-value.
EC (Egress Classify frame to an
Classifier) Egress Queue Class
based on the
(3)
internal priority and
the physical ingress
port.
SW (Switch) L2 internal
switching
EQS (Egress Egress port queuing,
Queue/Shaper) queue class based
shaping and port
(4)
based shaping
Table 15. QoS summary
Setting Description
Classify Profile Assign internal priority
Entry based on CoS (p-bit) or
IP v4/v6 DSCP or MPLS
Exp value.
Select Profile No.
Ingress Setting "2-rate 3-colour".
Ingress Policer CIR, EIR, CBS, EBS
Profile Setting
Setting per port and
per VLAN
QoS Port Setting Internal priority and
List/Internal the physical ingress
Priority Queuing port define the Queue
Policy per Ingress Class.
Note: the default
mapping profile (one to
one) plus two user
defined mapping
profiles may be used.
VLAN Setting L2 switch directs the
frame to the egress
port based on the VLAN
settings and frame
outer VID.
QoS Port Setting Dropping yellow and
List/Port Setting even green frames
when the queue is too
Egress Class
long. Queue
Setting
management
Information
Notes
Equipment Based Mode: one user
defined mapping profile common to all
ports based on CoS p-bit. If p-bit is
missing, can define internal priority
based on ipv4 Prec, ipv4/v6 DSCP or
MPLS Exp or use a default internal
priority.
Port Based Mode: each port may use
one of the following a) CoS-based
default mapping (1-1, 2-2 etc), b) user
defined DSCP-classification or c) port
default priority.
When a high packet rate burst is too
long, it is marked Yellow or Red
(dropped). Normally packet is Green.
Red limit is approximately CIR + EIR for
a continuous stream.
Egress port does not have any effect in
the egress queue classification.
Number of classes 4 or 8.
Egress port may be Ethernet port or
one of the modem ports
Strict priority class bypasses the
queuing. Dual shaping per class and per
egress port.
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