Nokia 7705 - 3.1.8.1 Shaped and Unshaped VLANs

QoS and QoS Policies
42
Quality of Service Guide
3HE 11014 AAAC TQZZA Edition: 01
Figure 5 Network Egress Shaped and Unshaped VLAN Queuing and Scheduling
3.1.8.1 Shaped and Unshaped VLANs
Shaped VLANs have user-configured rate limits (PIR and CIR)—called the
aggregate rate limits—and must use 16-priority scheduling mode. Shaped VLANs
operate on a per-interface basis and are enabled after a network queue policy is
assigned to the interface. If a VLAN does not have a network queue policy assigned
to the interface, it is considered an unshaped VLAN.
Buffer Mgmt
via WRED
or Tail Drop
Per VLAN
Aggregate Shaper
Port Shaper
Queue Layer
Scheduling
Classification
and Acc/NW Egr.
per FC queuing
24354
RR
Rate
Ethernet
port
NW
Aggregate Shaper
CoS-8
CoS-1
CoS-7
16-priority
Scheduled
Unshaped
VLANs
(aggregate for
unshaped
VLANs)
16-priority
Scheduled
Shaped or
Unshaped
VLANs
(per VLAN
aggregate
shaper)
16-priority
Scheduling
nc
VLAN
h1
be
CoS-8
CoS-1
CoS-7
nc
VLAN
h1
be
Strict
Priority
Dual Rate
Shaper
In-Prof
Out-Prof
Strict
Priority
per
VLAN
Hi_prio
per
VLAN
CIR
CIR,
PIR (see Note 1)
CIR,
PIR
Lo_prio
CoS-8
CoS-1
CoS-7
16-priority
Scheduling
nc
Unshaped
VLANs
h1
be
Strict
Priority
Hi_prio
Lo_prio
1st Tier 2nd Tier 3rd Tier
Fabric
Note 1: Each per-VLAN aggregate shaper
is a dual rate shaper similar to the
3rd tier dual rate shaper
Cos-8
In-Prof
Cos-1
In-Prof
Cos-8
Out-Prof
Cos-1
Out-Prof
Cos-8
In-Prof
Cos-1
In-Prof
Cos-8
Out-Prof
Cos-1
Out-Prof
Note: On the 8-port Ethernet Adapter card (version 2), profiled scheduling must be used for
VLAN shaping. For these cases, fewer shaped VLANs are supported.