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Juniper JUNOS OS 10.4 User Manual

Juniper JUNOS OS 10.4
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CHAPTER 4
VLANs Within Bridge Domain and VPLS
Environments
VLANs Within a Bridge Domain or VPLS Instance on page 43
Packet Flow Through a Bridged Network with Normalized VLANs on page 44
Configuring a Normalized VLAN for Translation or Tagging on page 45
Configuring Learning Domains for VLAN IDs Bound to Logical Interfaces on page 47
Example: Configuring a Provider Bridge Network with Normalized VLAN Tags on page 47
Example: Configuring a Provider VPLS Network with Normalized VLAN Tags on page 51
Example: Configuring One VPLS Instance for Several VLANs on page 55
VLANs Within a Bridge Domain or VPLS Instance
A packet received on a physical port is only accepted for processing if the VLAN tags of
the received packet match the VLAN tags associated with one of the logical interfaces
configured on the physical port. The VLAN tags of the received packet are translated
only if they are different than the normalized VLAN tags. For the translation case, the
VLAN identifier tags specify the normalized VLAN. For this case, the terms “learn VLAN”
and “normalized VLAN” can be used interchangeably.
You can specify the normalized VLAN using one of the following conditions:
The VLAN identifier is determined explicitly by configuration
The VLAN identifier is specified as “none, meaning the VLAN tags are not translated
or generated
The inner and outer VLAN identifier tags are both determined explicitly by configuration
Related
Documentation
Ethernet Networking
Packet Flow Through a Bridged Network with Normalized VLANs on page 44
Configuring a Normalized VLAN for Translation or Tagging on page 45
Configuring Learning Domains for VLAN IDs Bound to Logical Interfaces on page 47
Example: Configuring a Provider Bridge Network with Normalized VLAN Tags on page 47
Example: Configuring a Provider VPLS Network with Normalized VLAN Tags on page 51
43Copyright © 2012, Juniper Networks, Inc.

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Juniper JUNOS OS 10.4 Specifications

General IconGeneral
BrandJuniper
ModelJUNOS OS 10.4
CategoryNetwork Router
LanguageEnglish

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