
Configuring Async Port Features
Port Mirroring 9-15
Port Mirroring
The Port Mirroring feature allows multiple subscribers to connect
to the same port to view the same data and interact with a
common device. A maximum of 10 connections is allowed
(
default is 1). After the maximum number of connections has
been reached, any additional users are refused. To use this
feature, the port access must be set to either remote or
databuffer, and the serial device must echo all user-typed
characters. For example, this feature is useful for training
purposes, where a number of trainees would all be able to see
what the instructor is doing from their own screens.
The session begins when the first user connects to the port.
When the second user connects, his session starts where the
first session is currently, rather than where the first session
began. All users currently logged into the port are disconnected
when the administrator changes the value of the number of
simultaneous connections, or any other port attribute that logs
out the port.
The system administrator can limit subscribers’ port mirror
capabilities. Subscribers are allowed full interactivity with the
attached device (
default access), or limited port mirror access
based on a port access list and read-only access.
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