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4-18
Administration and Management
Writer:
Chris Seiter
Project:
Netelligent 2008/2016 10Base-T Repeater User Guide
Comments:
185814-003
File Name:
2000_4.doc
Last Saved On:
8/21/96 10:42 AM
SNMP requests and responses, RIP (requests and responses), IPX diagnostics,
and Compaq’s propriety protocol are all packets that do not originate from the
repeater but use IPX. A management station sends these packets to the repeater
and waits for the response. The SNMP management agent receives the packet
and sends it back using the same frame type and IPX network number that was
used to send the packet. The repeater supports all IPX frame types for response
type traffic.
The repeater originates packets for SNMP traps and RIP/SAP broadcasts.
Therefore, the repeater must know the IPX frame type and network number to
be able to transmit the packets. This requires the use of MIB variables, one of
which is the nw2IPXFrameType variable.
The repeater performs the following steps to determine the IPX frame type to
use on packets it originates:
1. Use the value stored in NVRAM for the frame type.
2. If no value is stored in NVRAM, use the default value of 802.2 over
802.3.
3. You can change the frame type at any time by setting the
nw2IPXFrameType MIB variable through the VT100 interface
or SNMP.
The repeater determines the IPX network numbers for SNMP traps through the
MIB variables that indicate the IPX trap receiver addresses. The repeater learns
IPX network numbers for RIP and SAP broadcasts by analyzing the RIP
broadcasts that IPX routers send over the network. If the repeater cannot learn
the network number through the network traffic, it uses the default network
number 0.
IP / IPX Autodiscovery
The repeater supports both IP and IPX autodiscovery mechanisms. Therefore,
standard management platforms such as Novell's ManageWise and HP
OpenView can autodiscover the repeater.