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Using Bundles to Create Logical Configurations for Physical Interfaces, CTP Release 7.3, CTPView Release 7.3
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DTE: All clocked by User Clk (RT)
Any custom clock config that uses "TT"
For any other serial clock configuration, a cable removal on the online port does not
cause it to exit the running state.
For T1/E1 ports, the recovered clock (which is equivalent to the external clock of a serial
port) from the incoming T1/E1 AMI signal is used in all available T1/E1 preconfigured or
canned clock configurations.
The T1 LOS checking technique was primarily intended for CTP bundles. Because the
T1/E1 SAToP bundle state machine also supports the bundle EVAL state as part of its
bundle state machine, it can also benefit from the LOS checking functionality provided
by this feature. However, the LOS detection feature on SAToP bundles is not useful
for both ended redundancy, since both-ended Y-cable redundancy configurations only
supports CTP bundles.
CESoPSN and VCOMP bundles are not supported for detecting LOS conditions because
their bundle state machines do not support an EVAL state.
You can configure the LOS detection mechanism for T1/E1 ports in the same function
that checks the external input clock. In addition, this T1/E1 LOS detection capability is
processed under the control of a separate port configuration flag so that this LOS
checking occurs only when this flag is active. Although this menu option to enable or
disable the LOS detection functionality is shown regardless of the port type, such as
serial interfaces or T1E1 interfaces, this setting becomes effective on a T1/E1 port only
when it is connected to a CTP or SAToP bundle. If the LOS detection functionality is
enabled on a serial port or other bundle types, the setting is not processed.
Also, when you run the bundle query for CTP bundles and SAToP bundles, the T1E1
port type displays port configuration flags that are relevant to a T1E1 port. In the
PortConfigFlags field displayed in the output of the bundle query, T1LoSCheck denotes
that LOS detection is specified on a T1 port connected to a CTP bundle or a SAToP
bundle, E1LoSCheck denotes that LOS detection is specified on a E1 port connected
to a CTP bundle or a SAToP bundle, and the NoRdReclk flag signifies that the
redundancy receiving (RX) clock is disabled. The NoRdReclk flag is also displayed
because this flag is default enabled for a T1/E1 port, whereas it is usually not enabled
for a serial port.
Copyright © 2018, Juniper Networks, Inc.
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