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1 - 8 ONline Ethernet Management Module Installation and Operation Guide
❑ SNMP Support - SNMP (Simple Network Management Protocol) is a
protocol defined by the Internet community. The EMM acts as an
agent in an SNMP managed environment responding to SNMP
requests and generating SNMP traps.
❑ Inband and Out-of-Band Download - The EMM provides both inband
and out-of-band download features. An inband download is
performed via TFTP (Trivial File Transfer Protocol). The out-of-band
download is performed using Xmodem software and a connection to
the RS-232 serial port on the front panel of the EMM.
❑ Telnet Support - The Telnet command enables you to log in remotely
to any EMM on the network and manage it from a remote EMM.
You can also manage an EMM from a workstation with Telnet
support.
ONline Backplane Architecture
The 3Com unique backplane architecture provides you with the power and
flexibility to create multiple Ethernet, Token Ring, FDDI networks in one
ONline System Concentrator. This backplane architecture allows the
following networks to run in a single ONline System Concentrator:
❑ three separate Ethernet networks and one isolated network
❑ seven backplane Token Ring networks and one isolated network
❑ four FDDI networks and one isolated network
Figure 1-3 illustrates how Ethernet, Token Ring, and FDDI networks coexist
on the concentrator backplane. Note in Figure 1-3 that Ethernet networks
and paths correspond. That is, Ethernet_1 network is always allocated to
Ethernet path 1, Ethernet_2 network is always allocated to Ethernet path 2,
and Ethernet_3 network is always allocated to Ethernet path 3.