Gvrp; Gvrp Global Configuration - i3 International S81 User Manual

UPnP Configuration Parameters:
Items
Mode
TTL
Advertising Duration

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
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 of 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.

GVRP Global Configuration

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 to 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.
To configure the GVRP in the web interface:

Click Configuration / GVRP / Global Config

Specify Join-time, Leave-time, Leave-All-time, Max VLANs

Click Apply and click the Save icon in the upper right corner to save the settings.
Description
Indicates the UPnP operation mode. Possible modes are:
Enabled: Enable UPnP mode operation.
Disabled: Disable UPnP mode operation.
When the mode is enabled, two ACEs are added automatically to trap UPnP related packets
to the CPU. The ACEs are automatically removed when the mode is disabled.
The TTL value is used by UPnP to send SSDP advertisement messages. Valid values are in
the range of 1 to 255.
The duration, carried in SSDP packets, is used to inform a control point or control points
how often it or they should receive an SSDP advertisement message from this switch. If a
control point does not receive any message within the duration, it will think that the switch
no longer exists. Due to the unreliable nature of UDP, in the standard it is recommended
that such refreshing of advertisements to be done at less than one-half of the advertising
duration. In the implementation, the switch sends SSDP messages periodically at the
interval one-half of the advertising duration minus 30 seconds. Valid values are in the range
100 to 86400.
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