IMC Networks iMcV-FiberLinX-II, TX/FX-SM1310/LONG-SC 856-14018 用户手册

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856-14018
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 www.imcnetworks.com   
 
       800-624-1070    
             www.mediaconverter.com 
VLAN Tagging and Extra-Tagging
Support for IEEE 802.1Q Extra Tagging, also known as Q-in-Q, allows the FiberLinX-II to more effectively route network 
VLAN traffic.  Extra tagging simplifies management and configuration efforts for service providers who have customers 
using a range of VLAN IDs for different applications.  Routing guidelines and other traffic rules can be programmed based 
on the extra tag, rather than being programmed for all of the potentially hundreds of individual VLAN IDs.  Also, since 
a service provider’s customers control their own internal VLAN settings, the extra tag is needed to make sure there is no 
overlap of VLAN IDs among customers, and to prevent traffic from different customers from becoming mixed.  The extra 
tag is removed once the traffic is routed to its correct destination, a process that is transparent to customers.
  IEEE 802.1Q VLAN compatible.
  Valid VLAN IDs are 1 to 4,094.
  Port-based VLAN tagging.
  Transparency Mode passes all data and respects the 
VLAN tag or lack thereof, i.e. allows a mixture of 
VLAN Tagged and Untagged traffic.
 Configure to support VLAN trunking; FiberLinX-II can 
filter up to 32 VLAN IDs for data, plus an additional ID 
for SNMP (Transparency Mode disabled).
 IEEE 802.1p provides a 2-tier queue for differential 
prioritization of inbound and outbound traffic.  For 
example, VoIP applications can be assigned a higher 
priority than data traffic.
Service providers routinely use IEEE 802.1Q Virtual Local Area Network (VLAN) tagging to secure, separate and differentiate 
customer traffic.  FiberLinX-II enables service providers to support multiple VLAN-based applications.
VLAN Functionality on FiberLinX-II
iMcV-FiberLinX-II
Application Example
 - 
Media Conversion with Isolated Management 
The diagram below illustrates a FiberLinX-II deployment with an IE-MiniFiberLinX-II acting as the CPE at the customer 
demarcation point.  The devices are configured so that management data is isolated from customer data, and does not 
pass through to the customer LAN, while common media conversion functionality is performed without interruption.