Gvrp; 2-21.1 Global Config - OTS ET42202M-S-PD User Manual

ET42202M-S-PD
L2+ Managed 20-port 100Base-FX/1000Base-X SFP + 4-port 10/100/1000Base-T or
100/1000Base-FX SFP Combo Optical Ethernet Switch with AC + DC inputs

2-21. 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.

2-21.1 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 that 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, thereby
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 2-21.1: The GVRP Configuration
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