This document discusses RPM (Real-time Performance Monitoring) service in Junos. It provides an overview of what RPM is, how it works, advantages and disadvantages of using it, and steps to implement RPM service in Junos. Specifically, it configures an RPM probe to monitor connectivity to an ISP, and uses the results to switch the primary route if the connection is lost.

1. KHNOG Micro Event
RPM
Service
in
Junos
Name
:
Kunthea
VORN
Posi3on
:
Network
Opera3on
Engineer
Level
1
Tel
:
(+855)
10
360
630
Email:
peGer@eintellegonetworks.asia

2. Agenda
v
What
is
RPM?
v
How
dose
RPM
work?
v
Advantages
of
using
RPM
Junos
service
v
Disadvantages
of
using
RPM
Junos
service
v
Implemen3ng
RPM
in
Junos
SRX

3. What is RPM?
• RPM
is
Real
3me
Performance
Monitoring
• RPM
feature
allows
network
operators
and
their
customers
to
accurately
measure
the
performance
between
two
network
endpoints.
• RPM
sends
probes
to
a
specified
target
and
monitor
the
analysed
results
to
determine
packet
loss,
round-­‐trip
3me,
and
jiGer.

4. How dose RPM work?
• RPM
allows
us
to
perform
service-­‐level
monitoring.
• RPM
is
configured
on
a
device,
the
device
calculates
network
performance
based
on:
• packet
response
3me
• jiGer,
and
packet
loss
• These
values
are
gathered
by
Hypertext
Transfer
Protocol
(HTTP)
GET
requests,
Internet
Control
Message
Protocol
(ICMP)
requests,
and
TCP
and
UDP
requests
depending
on
the
configura3on.

5. Advantages of using RPM
Junos service
• Keep
track
on
the
link
to
end
point
of
our
provider.
•
Switch
path
of
route
in
the
rou3ng
table
even
that
route
is
sta3c
route
or
dynamic
route.
•
High
availability
on
the
network
with
internet
accessing.
•
No
packet
interrupt
with
black
hold
route.

6. Disadvantages of using RPM
Junos service
•
Spend
bandwidth
for
probe
packet
use
in
the
internet
link.
•
Require
technical
knowledge
more
than
rou3ng
and
switching
•
If
we
set
the
probe
packet
with
small
value,
it
will
flex
our
route
and
use
more
CPU
usage.

7. Implementing RPM service in
Junos service
• Scenario

8. Configure RPM service
• set
services
rpm
probe
ISPA
test
icmp-­‐test
target
address
203.200.1.2
• set
services
rpm
probe
ISPA
test
icmp-­‐test
probe-­‐count
1
• set
services
rpm
probe
ISPA
test
icmp-­‐test
probe-­‐interval
1
• set
services
rpm
probe
ISPA
test
icmp-­‐test
probe-­‐type
icmp-­‐ping
• set
services
rpm
probe
ISPA
test
icmp-­‐test
test-­‐interval
1
• set
services
rpm
probe
ISPA
test
icmp-­‐test
thresholds
successive-­‐loss
1
• set
services
rpm
probe
ISPA
test
icmp-­‐test
thresholds
total-­‐loss
1
• set
services
rpm
probe
ISPA
test
icmp-­‐test
des3na3on-­‐interface
fe-­‐0/0/2.0
• set
services
rpm
probe
ISPA
test
icmp-­‐test
next-­‐hop
203.200.1.2

9. Configure RPM service
u Configure
IP-­‐monitoring
service
by
using
the
condi3on
of
RPM
ü set
services
ip-­‐monitoring
policy
test
match
rpm-­‐probe
ISPA
ü set
services
ip-­‐monitoring
policy
test
then
preferred-­‐route
route
0.0.0.0/0
next-­‐hop
203.100.1.2
u Define
primary
path
by
sta3c
route
ü set
rou3ng-­‐op3ons
sta3c
route
0.0.0.0/0
next-­‐hop
203.200.1.2

10. Result before RPM take action

11. Result after RPM take action