Enterasys Networks 6H302-48 - Manual (Page 22)

GARP Switch Operation
1-6 Introduction
The module supports Frame based 802.3x flow control. Frame based 802.3x flow control is
supported on all Ethernet ports operating in the full-duplex mode. Flow control can be enabled or
disabled on a port-by-port basis.
Back pressure flow control is not supported on ports operating in the half-duplex mode.
1.10 GARP SWITCH OPERATION
Some or all ports on the switch may be activated to operate under the Generic Attribute
Registration Protocol (GARP) applications, GARP VLAN Registration Protocol (GVRP) and/or
GARP Multicast Registration Protocol (GMRP).
GARP is a protocol, or set of rules, that outlines a mechanism for propagating the port state and/or
user information throughout a bridged LAN to keep track of users and VLANs on the network
fabric. MAC bridges and end users alike can take part in the registration and de-registration of
GARP attributes such as VLAN and multicast group membership. For more details on how GVRP
and GMRP handle frames under GARP, and how to configure the switch ports to take advantage of
this operation, refer to the Matrix E7 Series and SmartSwitch 6000 Series Local Management
User’s Guide.
1.11 802.1 PORT PRIORITY
The 802.1 port priority is used to assign a default priority to the frames received without priority
information in their tag header, map prioritized frames to the appropriate transmit queues, and
prioritize frames according to protocol type. The 802.1 port priority is part of the IEEE 802.1D
standard.
1.12 DISTRIBUTED CHASSIS MANAGEMENT
Installation in the Matrix E7 (6C107) Chassis
From a management perspective, 6x3xx modules in the Matrix E7 chassis can be managed
separately by individual IP addresses. Any modules in the Matrix E7 can be selected and managed,
however, no overall system wide settings are available.
NOTE: The Matrix E7 chassis does not support Distributed Chassis Management
functionality as in the SmartSwitch 6000 chassis. Refer to the Enterasys Networks
Matrix E7 Overview and Setup Guide and the Release Notes for more information.