Publication date: Sept, 2015
Revision A1
193
2-‐22. GVRP
The Generic Attribute Registration Protocol (GARP) provides a generic framework whereby devices in
a bridged LAN, e.g., end stations and switches, can register and de-‐register attribute values, such as
VLAN Identifiers, with each other. In doing so, the attributes are propagated to devices in the bridged
LAN, and these devices form a “reachability” tree that is a subset of an active topology. GARP defines
the architecture, rules of operation, state machines, and variables for the registration and
de-‐registration of attribute values.
A GARP participation in a switch or an end station consists of a GARP application component, and a
GARP Information Declaration (GID) component associated with each port or the switch. The
propagation of information between GARP participants for the same application in a bridge is carried
out by the GARP Information Propagation (GIP) component. Protocol exchanges take place between
GARP participants by means of LLC Type 1 services, using the group MAC address and PDU format
defined for the GARP application concerned.
2-‐22.1 Global Config
The switch stores its configuration in a number of text files in CLI format. The files are either virtual
(RAM-‐based) or stored in flash on the switch.
There are three system files:
•
running-‐config: A virtual file represents the currently active configuration on the switch. This
file is volatile.
•
startup-‐config: The startup configuration for the switch, read at boot time.
•
default-‐config: A read-‐only file with vendor-‐specific configuration. This file is read when the
system is restored to default settings.
It is also possible to store up to two other files and apply them to running-‐config, switching
configuration.
Web Interface
To configure the GVRP in the web interface:
1. Click Configuration, GVRP, Global Config.
2. Specify Join-‐time, Leave-‐time, Leave All-‐time, Max VLANs.
3. Click Apply.
Figure 2-‐22.1: The GVRP Configuration
Summary of Contents for LPB2910A
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