Controlling External Devices; Figure 20-4 Cisco Wan Manager Lan Connection To A Bpx Switch (No Gateway) - Cisco BPX-BXM-155-8DX Installation And Configuration Manual

Controlling External Devices

Figure 20-4 Cisco WAN Manager LAN Connection to a BPX Switch (no gateway)

Cisco WAN Manager
Note: IP numbers are representative only.
Controlling External Devices
If your system is configured to control an external device, such as a multiplexer, you can establish a
window session to it from the control terminal. While in a window session, any characters you type at
the control terminal go to the external device for processing. Any characters generated by the external
device appear on the control terminal screen.
The Window to External Device (window) command establishes a window session. You can use this
command only if the external device connects to the local node. You can, however, enter the window
command during a virtual terminal session so that you have a window session with any external device
in the network.
To start a window session:
First, check the port and the port function with cnfterm and cnftermfunc.
Step 1
Step 2 Next, determine whether the external window device is cabled to a node's Control Terminal
(EIA/TIA-232) port or Aux Port (EIA/TIA-232) port.
Step 3 Use the Virtual Terminal (vt) command to access the node cabled to the device.
Step 4 Invoke the window command. The format for the window command is:
window [a | c]
Step 5 Enter an a if the external device is attached to the node's Aux Port or
Enter c if the device is attached to the node's Control Terminal port. The default for this parameter is
Aux Port.
Step 6 To establish a window session with an external device attached to a node's Control Terminal port, enter:
window c
Step 7 The system responds by redrawing the terminal screen. You can now enter commands and send data to
the external device as if you were locally connected to its Control Terminal port.
While in the window session, only commands used to control the external device are recognized.
IGX/BPX commands are not recognized. You might notice a slight transfer delay in transmission, due
to the IGX/BPX bundling of characters before transmitting them. Transfers are delayed until the
transfer buffer is filled, or until the keyboard has been inactive for over 50 milliseconds.
To end a window session
Step 8 Enter an escape sequence.
Cisco BPX 8600 Series Installation and Configuration
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Chapter 20
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Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Configuring Network Management