I have a 3750G router running 12.2(50)SE1 with the following configuration and the IP SLA echo is not working but I can do a mual ping and ping the destination in the IP SLA config. Anyone seen this before and got it working?
ip sla 100
icmp-echo 10.99.4.1 source-ip 10.99.4.252
timeout 1000
threshold 250
vrf 10000329_TEST
frequency 10
show ip sla statistics 100
Round Trip Time (RTT) for Index 100
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 15:05:01.696 MDT Wed Mar 20 2013
Latest operation return code: Timeout
Number of successes: 0
Number of failures: 54
Operation time to live: Forever
ping vrf 10000329_TEST 10.99.4.1 source 10.99.4.252
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.99.4.1, timeout is 2 seconds:
Packet sent with a source address of 10.99.4.252
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/20/26 ms
Thanks!