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Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 9 Ethernet Operation
VLAN Support
Figure 9-20 A Q-tag moving through a VLAN
9.5.2 Priority Queuing (IEEE 802.1Q)
Note
IEEE 802.1Q was formerly IEEE 802.1P.
Data Flow
No tag
ONS
15327
ONS
15327
ONS
15327
ONS
15327
1. The ONS
15327
uses a Q-tag internally
to deliver the frame to a
specific VLAN.
The receiving ONS
15327
removes the Q-tag
and forwards the frame
to the specific VLAN.
2. The ONS
15327
receives a frame with a
Q-tag and passes it on.
The receiving ONS
15327
receives a frame with a
Q-tag and passes it on.
Q-tag
removed
Q-tag
Q-tag
Q-tag
Q-tag
ONS
15327
ONS
15327
3. The ONS
15327
receives a frame with a
Q-tag attached.
The receiving ONS
15327
receives a frame with a
Q-tag and removes it.
Q-tag
Q-tag
removed
Q-tag
46584
Summary of Contents for ONS 15327
Page 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...