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Cisco IPSLA over VLANs

Posted on 2009-06-29
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Last Modified: 2012-05-07
Folks,
Picture a 'Metro Ethernet' network, multi-site, built from Switches. The network uses VLANs to segregate and prioritise traffic - 802.1q.

I need to monitor delay across this network, using IPSLA. Here's the tricky part : the requirement is to send those IPSLA  tests *across specific VLANs* so that the reported delay is representative for the traffic in those VLANs.

Would a dedicated Cisco (router or switch) at each measurement point, connected into the cloud with an 802.1q segment, do this ? For example, initiate IPSLA tests from different IP source addresses, and then get the Cisco to route tests from a given IP onto a given VLAN and on into the cloud ? This needs to be done via SNMP, by the way - not the CLI.

Comments or Requests for more info welcome.
Richard
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Question by:leastResistance
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2 Comments
 
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by:harbor235
harbor235 earned 1000 total points
ID: 24745921


Well, that is definitely a good way to implemment IPSLA as long as you can route through the appropriate vlans you need to test. I assume you will need to test multiple vlans so creating subinterfaces or SVIs on the dedicated IPSLA devices can give you what you need. What do you mean this needs to be done via SNMP? You can collect the IPSLA stats via SNMP, is that what you mean?

harbor235 ;}

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leastResistance earned 0 total points
ID: 24765390
I need to be able to create / setup the tests, *and* collect the results via snmp, so any parameters must be settable via snmp and ont just the cli (I think sourceInterface is one such parameter). I'll try creating multiple virtual subinterfaces on the main Ethernet connection and putting one into each VLAN, I think this should work. Thanks for the input.
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