Sun Oct  4 07:35:51.217 UTC
RP/0/RP0/CPU0:R4#ping 1.1.1.1 source 4.4.4.4 count 900 interval 100 timeout 1

Sun Oct  4 07:35:51.509 UTC
Type escape sequence to abort.
Sending 900, 100-byte ICMP Echos to 1.1.1.1 timeout is 1 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.....................
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.......................................timeout waiting for prompt after: ping 1.1.1.1 source 4.4.4.4 count 900 interval 100 timeout 1