Allied Telesis AT-RPS8000 Installation Guide download pdf (Page 23)

AT-9006 Series Installation Guide

SNMP Session

You can also manage the switch using an SNMP management program,

such as HP Openview. This method requires that you load the AT-9006

Series Switch MIBs onto the workstation from which you intend to

manage the switch and that you compile the MIBs with a MIB complier.

The MIBs for the AT-9006 Series Gigabit Ethernet Switch are available

from the Allied Telesyn web site. MIBs supported by the switch include:

# MIB II

# Bridge MIB (RFC 1493)

# Ethernet MIB (RFC 1643)

# Interface MIB (RFC 1573)

# Allied Telesyn International (ATI) Enterprise MIB

IEEE 802.3u

Auto-Negotiation

The AT-9006 Series Gigabit Ethernet Switches are IEEE 802.3u Auto-

Negotiation compliant. Each port on the switch can be operate in either

half-duplex mode or full-duplex mode. When operating in full-duplex

mode, a port is able to both transmit and receive data at the same time.

When operating in half-duplex mode, a port can either transmit data or

receive data, but not both at the same time.

You can configure the duplex mode for each port manually or you can

allow the switch to do it for you through its auto-negotiation feature. By

allowing the switch to configure the duplex mode for each port itself,

you do not need to change the setting should you replace an end-node

connected to a port on the switch with a node that has a different

duplex mode capability. With auto-negotiation, the switch will

automatically set the port without your intervention.

The AT-9006T Switch is not only Auto-Negotiation compliant in duplex

mode, but also in speed. Each port on this switch can operate at either

100 Mbps or 1000 Mbps. You can set the speed manually or you can

allow the switch to set it automatically.

Spanning Tree

Protocol (STP)

The AT-9006 Series Gigabit Ethernet Switches are IEEE 802.1D standard-

compliant and support the spanning tree protocol. STP can be an

important part of large networks where loops, either planned or

unplanned, exist in the network topology. A loop occurs when two or

more nodes on your network can transmit data to each other over more

than one link. In a network loop every broadcast packet will be

forwarded continuously, consuming network bandwidth and reducing

network performance.

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Allied Telesis AT-RPS8000 Installation Guide Page 23