3com 5500-ei pwr Instruccion De Instalación

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GVRP Configuration 
When configuring GVRP, go to these sections for information you are interested in: 
Introduction to GVRP 
GARP VLAN registration protocol (GVRP) is an implementation of generic attribute registration protocol 
(GARP). GARP is introduced as follows.  
GARP 
The generic attribute registration protocol (GARP), provides a mechanism that allows participants in a 
GARP application to distribute, propagate, and register with other participants in a bridged LAN the 
attributes specific to the GARP application, such as the VLAN or multicast attribute.  
GARP itself does not exist on a device as an entity. GARP-compliant application entities are called 
GARP applications. One example is GVRP. When a GARP application entity is present on a port on 
your device, this port is regarded a GARP application entity. 
GARP messages and timers 
1) GARP 
messages 
GARP members communicate with each other through the messages exchanged between them. The 
messages performing important functions for GARP fall into three types: Join, Leave and LeaveAll. 
When a GARP entity wants its attribute information to be registered on other devices, it sends Join 
messages to these devices. A GARP entity also sends Join messages when it receives Join 
messages from other entities or it wants some of its statically configured attributes to be registered 
on other GARP entities.  
When a GARP entity wants some of its attributes to be deregistered on other devices, it sends 
Leave messages to these devices. A GARP entity also sends Leave messages when it receives 
Leave messages from other entities for deregistering some attributes or it has some attributes 
statically deregistered.  
Once a GARP entity is launched, the LeaveAll timer is triggered at the same time. The GARP entity 
sends out LeaveAll messages after the timer times out. LeaveAll messages deregister all the 
attributes, through which the attribute information of the entity can be registered again on the other 
GARP entities.  
Leave messages, LeaveAll messages, together with Join messages ensure attribute information can be 
deregistered and re-registered.  
Through message exchange, all the attribute information to be registered can be propagated to all the 
GARP-enabled switches in the same LAN.