IBM 8239 Token-Ring Stackable Hub, Руководство по установке и эксплуатации

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Chapter 7. 8239 Device Management
In addition to concentrator functions, the 8239 provides both device and network
management. This chapter describes these device management functions:
¹
Connectivity methods
¹
Scripts
¹
Trap processing
Chapter 8, “Network Management” on page 8-1 provides information about the
network management functions.
Connectivity Methods
There are two connectivity methods used to physically access the 8239:
¹
Out-of-band connectivity, in which access to the 8239 is through the EIA-232
port. Both the 8239 Model 1 and Model 2 support out-of-band connectivity.
¹
In-band connectivity, which is the ability to access the 8239 from a remote
station using the token-ring network. Only the 8239 Model 1 supports in-band
connectivity.
Out-of-Band Connectivity
The 8239 supports out-of-band access on both models through the EIA-232 port.
You can attach either an ASCII terminal for local access or a modem for remote
access. See “Connecting an ASCII Terminal or Modem to the EIA-232 Port” on
page 2-5 for instructions for connecting to the EIA-232 port. See “Using the
Command Interface” on page 4-1 for information about the command interface.
Note: A session on the EIA-232 port does not time out.
In-Band Connectivity
The 8239 supports in-band access on the Model 1 only. The 8239 Model 1 must be
configured with an IP address to use in-band connectivity. In-band connectivity is
accessed through these protocols:
Telnet
SNMP
PING
TFTP
The use of these protocols with the 8239 is described in the following sections.
Telnet
Use Telnet from an external token-ring station to run a terminal session over an IP
network. Up to five users can use Telnet to access an 8239 Model 1 at one time.
An idle Telnet session is disconnected after 15 minutes.
Access to the 8239 terminal is controlled by user names and passwords. See
“Using the Command Interface” on page 4-1 for information about using the
command interface and “Access Modes” on page 7-3 for information about access
to the command interface.
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Copyright IBM Corp. 1998
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