Notifications
PTP 450 Configuration and User
pmp-0815 (August 2015)
6-53
Term
Definition
innucastpkts
count Field
How many inbound non-unicast (subnetwork-broadcast or
subnetwork-multicast) packets were delivered to a higher-layer
protocol.
inoctets count
Field
How many octets were received on the interface, including those
that deliver framing information.
Intel
A registered trademark of Intel Corporation.
inucastpkts
count Field
How many inbound subnetwork-unicast packets were delivered to a
higher-layer protocol.
inunknownprotos
count Field
How many inbound packets were discarded because of an unknown
or unsupported protocol.
IP
Internet Protocol defined in RFC 791. The Network Layer in the
TCP/IP protocol stack. This protocol is applied to addressing,
routing, and delivering, and re-assembling data packets into the
Data Link layer of the protocol stack. See
http://www.faqs.org/rfcs/rfc791.html
IP Address
32-bit binary number that identifies a network element by both
network and host. See also Subnet Mask.
IPv4
Traditional version of Internet Protocol, which defines 32-bit fields
for data transmission.
ISM
Industrial, Scientific, and Medical Equipment radio frequency
band, in the 900-MHz, 2.4-GHz, and 5.8-GHz ranges.
L2TP over IPSec
Level 2 Tunneling Protocol over IP Security. One of several virtual
private network (VPN) implementation schemes. Regardless of
whether Subscriber Modules have the Network Address
Translation feature (NAT) enabled, they support VPNs that are
based on this protocol.
Late Collision
Field
This field displays how many late collisions occurred on the
Ethernet controller. A normal collision occurs during the first 512
bits of the frame transmission. A collision that occurs after the first
512 bits is considered a late collision. A late collision is a serious
network problem because the frame being transmitted is
discarded. A late collision is most commonly caused by a mismatch
between duplex configurations at the ends of a link segment.
Latency
Tolerance
Acceptable tolerance for delay in the transfer of data to and from a
module.
LBT
Listen Before Talk (LBT) or sometimes called Listen Before
Transmit is a technique used in radio communications whereby a
radio transmitters first sense its radio environment before it starts
a transmission.