<s>
OpenNMS	B-Language
is	O
a	O
free	B-License
and	I-License
open-source	I-License
enterprise	O
grade	O
network	O
monitoring	O
and	O
network	O
management	O
platform	O
.	O
</s>
<s>
It	O
is	O
developed	O
and	O
supported	O
by	O
a	O
community	O
of	O
users	O
and	O
developers	O
and	O
by	O
the	O
OpenNMS	B-Language
Group	O
,	O
offering	O
commercial	O
services	O
,	O
training	O
and	O
support	O
.	O
</s>
<s>
The	O
goal	O
is	O
for	O
OpenNMS	B-Language
to	O
be	O
a	O
truly	O
distributed	O
,	O
scalable	O
management	O
application	O
platform	O
for	O
all	O
aspects	O
of	O
the	O
FCAPS	O
network	O
management	O
model	O
while	O
remaining	O
100%	O
free	B-License
and	I-License
open	I-License
source	I-License
.	O
</s>
<s>
All	O
code	O
associated	O
with	O
the	O
project	O
is	O
available	O
under	O
the	O
Affero	B-Application
General	I-Application
Public	I-Application
License	I-Application
.	O
</s>
<s>
The	O
OpenNMS	B-Language
Project	O
is	O
maintained	O
by	O
The	O
Order	O
of	O
the	O
Green	O
Polo	O
.	O
</s>
<s>
The	O
OpenNMS	B-Language
Project	O
was	O
started	O
in	O
July	O
,	O
1999	O
by	O
Steve	O
Giles	O
,	O
Brian	O
Weaver	O
and	O
Luke	O
Rindfuss	O
and	O
their	O
company	O
PlatformWorks	O
.	O
</s>
<s>
It	O
was	O
registered	O
as	O
project	O
4141	O
on	O
SourceForge	B-Application
in	O
March	O
2000	O
.	O
</s>
<s>
On	O
September	O
28	O
,	O
2000	O
,	O
PlatformWorks	O
was	O
acquired	O
by	O
Atipa	O
,	O
a	O
Kansas	O
City-based	O
competitor	O
to	O
VA	O
Linux	B-Application
Systems	O
.	O
</s>
<s>
In	O
September	O
2002	O
,	O
Oculan	O
decided	O
to	O
stop	O
supporting	O
the	O
OpenNMS	B-Language
project	O
.	O
</s>
<s>
In	O
September	O
2004	O
,	O
The	O
OpenNMS	B-Language
Group	O
was	O
started	O
by	O
Balog	O
,	O
Matt	O
Brozowski	O
and	O
David	O
Hustace	O
to	O
provide	O
a	O
commercial	O
services	O
and	O
support	O
business	O
around	O
the	O
project	O
.	O
</s>
<s>
Shortly	O
after	O
that	O
,	O
The	O
Order	O
of	O
the	O
Green	O
Polo	O
(	O
OGP	O
)	O
was	O
founded	O
to	O
manage	O
the	O
OpenNMS	B-Language
Project	O
itself	O
.	O
</s>
<s>
While	O
many	O
members	O
of	O
the	O
OGP	O
are	O
also	O
employees	O
of	O
The	O
OpenNMS	B-Language
Group	O
,	O
it	O
remains	O
a	O
separate	O
organization	O
.	O
</s>
<s>
OpenNMS	B-Language
is	O
written	O
in	O
Java	B-Language
,	O
and	O
thus	O
can	O
run	O
on	O
any	O
platform	O
with	O
support	O
for	O
a	O
Java	B-Language
SDK	B-Application
version	O
8	O
or	O
higher	O
.	O
</s>
<s>
Precompiled	O
binaries	O
are	O
available	O
for	O
most	O
Linux	B-Application
distributions	O
,	O
Windows	O
,	O
Solaris	B-Application
and	O
OS	B-Operating_System
X	I-Operating_System
.	O
</s>
<s>
In	O
addition	O
to	O
Java	B-Language
,	O
it	O
requires	O
the	O
PostgreSQL	B-Application
database	O
,	O
although	O
work	O
is	O
being	O
done	O
to	O
make	O
the	O
application	O
database	O
independent	O
by	O
leveraging	O
the	O
Hibernate	B-Library
project	O
.	O
</s>
<s>
OpenNMS	B-Language
describes	O
itself	O
as	O
a	O
"	O
network	O
management	O
application	O
platform	O
"	O
.	O
</s>
<s>
There	O
are	O
four	O
main	O
functional	O
areas	O
of	O
OpenNMS	B-Language
.	O
</s>
<s>
OpenNMS	B-Language
is	O
based	O
around	O
a	O
"	O
publish	B-Operating_System
and	I-Operating_System
subscribe	I-Operating_System
"	O
message	O
bus	O
.	O
</s>
<s>
In	O
addition	O
,	O
OpenNMS	B-Language
can	O
receive	O
events	O
in	O
the	O
form	O
of	O
SNMP	B-Protocol
Traps	O
,	O
syslog	B-Protocol
messages	O
,	O
TL/1	O
events	O
or	O
custom	O
messages	O
sent	O
as	O
XML	B-Protocol
to	O
port	O
5817	O
.	O
</s>
<s>
The	O
Alarm	O
subsystem	O
can	O
also	O
integrate	O
with	O
a	O
variety	O
of	O
trouble	O
ticketing	O
systems	O
,	O
such	O
as	O
Request	B-Language
Tracker	I-Language
,	O
OTRS	B-Language
,	O
Jira	B-Protocol
,	O
Quickbase	O
and	O
Concursive	O
.	O
</s>
<s>
Events	O
can	O
generate	O
notifications	O
via	O
e-mail	O
,	O
SMS	B-Device
,	O
XMPP	B-Protocol
and	O
custom	O
notification	O
methods	O
.	O
</s>
<s>
OpenNMS	B-Language
has	O
been	O
shown	O
to	O
be	O
able	O
to	O
process	O
125,000	O
syslog	B-Protocol
messages	O
per	O
minute	O
,	O
continuously	O
.	O
</s>
<s>
OpenNMS	B-Language
contains	O
an	O
advanced	O
provisioning	O
system	O
for	O
adding	O
devices	O
to	O
the	O
management	O
system	O
.	O
</s>
<s>
This	O
process	O
can	O
occur	O
automatically	O
by	O
submitting	O
a	O
list	O
or	O
range	O
of	O
IP	O
addresses	O
to	O
the	O
system	O
(	O
both	O
IPv4	B-Protocol
and	O
IPv6	B-Protocol
)	O
.	O
</s>
<s>
The	O
underlying	O
technology	O
for	O
this	O
configuration	O
is	O
XML	B-Protocol
,	O
so	O
users	O
can	O
either	O
use	O
the	O
web-based	O
user	O
interface	O
or	O
they	O
can	O
automate	O
the	O
process	O
by	O
scripting	O
the	O
creation	O
of	O
the	O
XML	B-Protocol
configuration	O
files	O
.	O
</s>
<s>
The	O
provisioning	O
system	O
contains	O
adapters	O
to	O
integrate	O
with	O
other	O
processes	O
within	O
the	O
application	O
and	O
to	O
external	O
software	O
,	O
such	O
as	O
a	O
Dynamic	B-Protocol
DNS	I-Protocol
server	O
and	O
RANCID	B-Protocol
.	O
</s>
<s>
The	O
service	O
assurance	O
features	O
of	O
OpenNMS	B-Language
allow	O
for	O
the	O
availability	O
of	O
network-based	O
services	O
to	O
be	O
determined	O
.	O
</s>
<s>
The	O
types	O
of	O
monitors	O
span	O
from	O
the	O
very	O
simple	O
(	O
ICMP	B-Protocol
pings	O
,	O
TCP	B-Protocol
port	O
checks	O
)	O
to	O
the	O
complex	O
(	O
Page	O
Sequence	O
Monitoring	O
,	O
Mail	O
Transport	O
Monitor	O
)	O
.	O
</s>
<s>
In	O
addition	O
to	O
being	O
able	O
to	O
monitor	O
network	O
services	O
from	O
the	O
point	O
of	O
view	O
of	O
the	O
OpenNMS	B-Language
server	O
,	O
remote	O
pollers	O
can	O
be	O
deployed	O
to	O
measure	O
availability	O
from	O
distant	O
locations	O
.	O
</s>
<s>
Papa	O
John	O
's	O
Pizza	O
uses	O
the	O
OpenNMS	B-Language
remote	O
poller	O
software	O
in	O
each	O
of	O
its	O
nearly	O
3000	O
retail	O
stores	O
to	O
measure	O
the	O
availability	O
of	O
centralized	O
network	O
resources	O
.	O
</s>
<s>
Performance	O
data	O
collection	O
exists	O
in	O
OpenNMS	B-Language
for	O
a	O
number	O
of	O
network	O
protocols	O
including	O
SNMP	B-Protocol
,	O
HTTP	B-Protocol
,	O
JMX	B-Language
,	O
WMI	B-Library
,	O
XMP	O
,	O
XML	B-Protocol
,	O
NSClient	O
,	O
and	O
JDBC	B-Language
.	O
</s>
<s>
The	O
process	O
is	O
highly	O
scalable	O
,	O
and	O
one	O
instance	O
of	O
OpenNMS	B-Language
is	O
collecting	O
1.2	O
million	O
data	O
points	O
via	O
SNMP	B-Protocol
every	O
five	O
minutes	O
.	O
</s>
<s>
OpenNMS	B-Language
is	O
accessed	O
via	O
a	O
web-based	O
user	O
interface	O
built	O
on	O
Jetty	B-Language
.	O
</s>
<s>
An	O
integration	O
with	O
JasperReports	B-Language
creates	O
high	O
level	O
reports	O
from	O
the	O
database	O
and	O
collected	O
performance	O
data	O
.	O
</s>
