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Using Bundles to Create Logical Configurations for Physical Interfaces, CTP Release 7.3, CTPView Release 7.3
Table 34: CTP Bundle Multiservice IRIG-B Port Parameter Settings in the CTP Menu (continued)
Field
Src/Dest
IRIG Rate
82
Function
Specifies the direction of the circuit.
Although the IP circuit connection
through the network is full duplex, an
IRIG-B circuit is a simplex application,
and the interface can operate only in Rx
or Tx mode and not both at the same
time.
(Although the bundle is by default a full
duplex IP connection, you can configure
it for simplex to save network
bandwidth.)
Specifies the data rate on the IP
connection.
Note the following about setting the IRIG
rate:
Unless network bandwidth is at a
premium, we do not recommend that
you change this value from the default
of 16,000 bps.
Although the IRIG information can be
transported through the network at
the minimum configured rate (1000
bps), a CTP bundle running at this rate
is subject to high latency.
Your Action
Specify yes or no to the question: Is this
an IRIG-B source end (IRIG-B signal
enters CTP)?
Yes (y)—Sets direction to Rx. This end
of the circuit recovers IRIG-B from the
attached cable and generates IP
packets toward the network.
No (n)—Sets the direction to Tx. This
end of the circuit accepts IP packets,
extracts the IRIG-B data codes, and
transmits IRIG-B signaling output onto
the cable.
If the autonegotiation setting of the CTP
Ethernet media and the far-end switch
or router do not match, it is possible for
the CTP Ethernet ports to be in a
half-duplex state, although the duplex
setting is not configurable and always
assumed to be full-duplex on the CTP
device. Starting with CTPOS Release 7.2,
the half-duplex state at CTP network
interface card (NIC) ports are acquired,
regardless of the duplex setting
configured on the far-end node. After the
autonegotiation process is completed, if
the CTP NIC cannot acquire full-duplex
mode, then the interfaces are considered
to be down and a log message is
recorded in both the
/var/log/messages
directory and the
syslog file stating that the interface is
down due to a non-full duplex condition.
You are prompted to verify the cable
connection, speed, and duplex settings
because the NIC link might be down.
Enter a number from 1000 through
25,500 bps. The port speed must be a
multiple of 100 bps.
Copyright © 2018, Juniper Networks, Inc.
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