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Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter 9 Ethernet Operation
VLAN Support
Figure 9-21 The priority queuing process
9.4.3 VLAN Membership
This section explains how to provision Ethernet ports for VLAN membership. For initial port
provisioning (prior to provisioning VLAN membership) see the “Port Provisioning for Ethernet Cards”
section on page 9-3.
Procedure: Provision Ethernet Ports for VLAN Membership
The ONS 15454 allows you to configure the VLAN membership and Q-tag handling of individual
Ethernet ports.
Table 9-5 Priority Queuing
User Priority Queue Allocated Bandwidth
0,1,2,3 Low 30%
4,5,6,7 High 70%
Data Flow
No priority
ONS 15454
ONS 15454
ONS 15454
maps a frame
with port-based priority using
a Q-tag.
The receiving
ONS 15454
removes the Q-tag and
forwards the frame.
ONS 15454
uses a Q-tag to
map a frame with priority and
forwards it on.
The receiving
ONS 15454
receives the frame with a
Q-tag and forwards it.
Priority tag
removed
Priority
Priority
Priority
Same
priority
ONS 15454
ONS 15454
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