Cambium Networks PTP 450 Series, Configuration Manual

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Chapter 5: Troubleshooting Logs
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8
Term Definition
HTTPS Hypertext Transfer Protocol Secure (HTTPS)
ICMP Internet Control Message Protocols defined in RFC 792, used to identify
Internet Protocol (IP)-level problems and to allow IP links to be tested.
See http:
//www.faqs.org/rfcs/rfc792.html.
Integrated The 450 Platform Family Integrated Radio solution provides integrated
antenna..
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.
Line of Sight Wireless path (not simply visual path) direct from module to module.
The path that results provides both ideal aim and an ideal Fresnel zone.
LNK/5 Furthest left LED in the module. In the operating mode, this LED is
continuously lit when the Ethernet link is present. In the aiming mode
for a Subscriber Module, this LED is part of a bar graph that indicates
the quality of the RF link.
Logical Unit ID Final octet of the 4-octet IP address of the module.
LOS Line of sight. The wireless path (not simply visual path) direct from
module to module. The path that results provides both ideal aim and an
ideal Fresnel zone.
LUID Logical Unit ID. The final octet of the 4-octet IP address of the module.