Hirschmann RS20 Reference Manual

Glossary
549
CLI L2P
Release 7.0 05/2011
GARP Multicast Registration
Protocol. GMRP provides a
mechanism that allows Bridges and
end stations to dynamically register
(and subsequently, de-register)
Group membership information with
the MAC Bridges attached to the
same LAN segment, and for that
information to be disseminated
across all Bridges in the Bridged
LAN that support Extended Filtering
Services. The operation of GMRP
relies upon the services provided by
the GARP.
GARP VLAN Registration
Protocol. GVRP allows
workstations to request admission to
a particular VLAN for multicast
purposes.
GE. See “Gigabit Ethernet” on
page 549.
General Purpose Chip-select
Machine. GPCM provides
interfacing for simpler, lower-
performance memory resources and
memory mapped-devices. The
GPCM does not support bursting
and is used primarily for boot-
loading.
Generic Attribute Registration
Protocol. GARP provides a
generic attribute dissemination
capability that is used by participants
in GARP Applications (called GARP
Participants) to register and de-
register attribute values with other
GARP Participants within a Bridged
LAN. The definition of the attribute
types, the values that they can carry,
and the semantics that are
associated with those values when
registered are specific to the
operation of the GARP Application
concerned.
Gigabit Ethernet. A high-speed
Ethernet connection.
GIP. See “GARP Information
Propagation” on page 548.
GMRP. See “GARP Multicast
Registration Protocol” on page 549.
GPCM. See “General Purpose
Chip-select Machine” on page 549.
GVD. GARP VLAN Database.
GVRP. See “GARP VLAN
Registration Protocol.” on page 549.
H
.h file. Header file in C code.
Contains function and coding
definitions.
HAPI. See “Hardware Abstraction
Programming Interface” on
page 549.
Hardware Abstraction
Programming Interface. HAPI is
the module that contains the NP
specific software that interacts with
the hardware.
hop count. The number of routers
that a data packet passes through
on its way to its destination.

Hirschmann RS20 Specifications

General

Mounting	DIN Rail
Operating Temperature	-40°C to +70°C
Protection Class	IP30
Switching Technology	Store-and-Forward
Product Type	Industrial Ethernet Switch
Port Details	10/100 Mbps Ethernet ports
Switching Capacity	3.2 Gbps
MAC Address Table	8k
Management	Web, SNMP
Redundancy	MRP
Ports	8 or 16