Juniper CTP Series User Manual

Table 34: CTP Bundle Multiservice IRIG-B Port Parameter Settings in the CTP Menu (continued)
Your ActionFunctionField
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.
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.)
Src/Dest
Enter a number from 1000 through
25,500 bps. The port speed must be a
multiple of 100 bps.
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.
IRIG Rate
Copyright © 2018, Juniper Networks, Inc.82
Using Bundles to Create Logical Configurations for Physical Interfaces, CTP Release 7.3, CTPView Release 7.3

Juniper CTP Series Specifications

General

Brand	Juniper
Model	CTP Series
Category	Server
Language	English