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Introduction
1-6
Switching Options
The 9H531-17 and 9H532-17 provide IEEE Standard-based 802.1 switching or
SecureFast Switching Virtual Network Services. In the 802.1 mode (the default
mode of operation), the switch functions as an 802.1D switch. When until VLANs
are configured, it operates as an 802.1Q switch.
Standards Compatibility
The 9H531-17 and 9H532-17 are fully compliant with the IEEE 802.3, 802.3x,
802.3u, 802.1Q, and 802.1p standards. The 9H531-17 and 9H532-17 provide IEEE
802.1D Spanning Tree Algorithm (STA) support to enhance the overall reliability
of the network and protect against “loop” conditions. The 9H531-17 and 9H532-
17 support a wide variety of industry standard MIBs including RFC 1573 (MIB II),
RFC 1271 (RMON), RFC 1493 (Bridge MIB), RFC 1354 (FIB MIB), and RFC 1190
(Path MTU Discovery). A full suite of Cabletron Systems Enterprise MIBs provide
a wide array of statistical information to enhance troubleshooting. For
information about how to extract and compile individual MIBs, contact Cabletron
Systems.
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.
Table 1-1. Priority Queuing Configuration
Priority Indicator Transmit Queue
73
63
52
42
31
20
10
01