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IP SLA - Packet Loss

Tauer Drumond
Level 1
Level 1

Hi,

I have a simple connection between two sites... one router on both sides.

I would like to configure IP SLA to monitoring the Packet Loss. If the Packet Loss is so high, I would like to redirect the traffic to another destination.

Can anyone show me a simple configuration about that or a better way to do it?

Thanks so much

Tauer

3 Replies 3

Hi Tauer,

This is one I built in my lab for voice, but you can change the variables easily.

Sending side:

ip sla monitor 3

type jitter dest-ipaddr 172.16.1.2 dest-port 16384 codec g711ulaw codec-numpackets 30

tos 184

frequency 10

ip sla monitor schedule 3 start-time now

ip sla monitor 4

type jitter dest-ipaddr 172.16.35.5 dest-port 16386 codec g711ulaw codec-numpackets 20

tos 184

frequency 5

ip sla monitor schedule 4 start-time now

Receiving side:

ip sla monitor responder

R3#sh ip sla moni stat

Round trip time (RTT) Index 3

Latest RTT: 54 ms

Latest operation start time: 00:11:46.823 UTC Tue Jan 1 2008

Latest operation return code: OK

RTT Values

Number Of RTT: 13

RTT Min/Avg/Max: 108/124/153 ms

Latency one-way time milliseconds

Number of one-way Samples: 0

Source to Destination one way Min/Avg/Max: 0/0/0 ms

Destination to Source one way Min/Avg/Max: 0/0/0 ms

Jitter time milliseconds

Number of Jitter Samples: 7

Source to Destination Jitter Min/Avg/Max: 5/6/7 ms

Destination to Source Jitter Min/Avg/Max: 1/1/1 ms

Packet Loss Values

Loss Source to Destination: 17 Loss Destination to Source: 0

Out Of Sequence: 0 Tail Drop: 0 Packet Late Arrival: 0

Voice Score Values

Calculated Planning Impairment Factor (ICPIF): 25

Mean Opinion Score (MOS): 3.50

Number of successes: 20

Number of failures: 0

Operation time to live: 3393 sec

Round trip time (RTT) Index 4

Latest RTT: 2 ms

Latest operation start time: 00:12:01.167 UTC Tue Jan 1 2008

Latest operation return code: OK

RTT Values

Number Of RTT: 20

RTT Min/Avg/Max: 2/2/2 ms

Latency one-way time milliseconds

Number of one-way Samples: 0

Source to Destination one way Min/Avg/Max: 0/0/0 ms

Destination to Source one way Min/Avg/Max: 0/0/0 ms

Jitter time milliseconds

Number of Jitter Samples: 19

Source to Destination Jitter Min/Avg/Max: 0/0/0 ms

Destination to Source Jitter Min/Avg/Max: 0/0/0 ms

Packet Loss Values

Loss Source to Destination: 0 Loss Destination to Source: 0

Out Of Sequence: 0 Tail Drop: 0 Packet Late Arrival: 0

Voice Score Values

Calculated Planning Impairment Factor (ICPIF): 1

Mean Opinion Score (MOS): 4.34

Number of successes: 6

Number of failures: 0

Operation time to live: 3570 sec

hth,

nick

Hi nick,

In this scenario did you set the amount of packet loss?....

I mean, when the circuit loss an specific amount of packets, the router redirect the traffic to another way...etc

Thanks

Joseph W. Doherty
Hall of Fame
Hall of Fame

You might want to investigate Cisco's OER/PfR.

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