All,
I've got IP SLA setup on a pair of 2900 series routers running the uck9 license. I only have PVDM3 installed on both routers, no voice cards or anything. These are merely meant for ip sla monitoring for our voice. I've setup the below configuration on the sender and responder only.
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R1#
ip sla 201
voip rtp 10.10.10.173 source-ip 10.10.10.63 source-voice-port 0/5/8 codec g729a duration 20 advantage-factor 0
ip sla schedule 201 life forever start-time now
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Router#sh ip sla responder
General IP SLA Responder on Control port 1967
General IP SLA Responder on Control V2 port 1167
General IP SLA Responder is: Enabled
Number of control message received: 0 Number of errors: 0
Recent sources:
Recent error sources:
Number of control v2 message received: 0 Number of errors: 0
Recent sources:
Recent error sources:
Permanent Port IP SLA Responder
Permanent Port IP SLA Responder is: Disabled
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Both routers are pretty much bare bones with no configuration on them. What Im trying to determine is if I need additional hardware to support this, or if just having PVDM installed on both will work.
The SLA process sends packets with the following info from r1#
And then the response from the destination router on line 14
13 8.797202 10.10.10.63 10.10.10.173 UDP 96 55602 → 0 Len=68
14 8.797715 10.10.10.173 10.10.10.63 ICMP 56 Destination unreachable (Port unreachable)
These routers are directly connected on same network, with a Cisco 3750 bare bones switch in between. I can confirm I receive the packet on the responder. What I can't tell is why its sending on UDP port 0 and if that would be considered normal or not. Just trying to get RTP monitoring setup using IP SLA here and not having much luck. Any help/guidance/ideas ?
Do I have to have an active voice circuit in order to use this feature? If I do does a PRI work if I borrow one of those channels or does it have to be something specific. Cisco documentation is lacking in detail and need help.
