yes, it is a packet retransmission and TCP out of order.
This is the configuration of mirror port
switch(config)# mirror 1 port 11
switch(config)# interface VLAN 1 monitor all both mirror 1
switch(config)# mirror 2 port 11
switch(config)# interface VLAN 2 monitor all both mirror 2
switch(config)# mirror 3 port 11
switch(config)# interface VLAN 3 monitor all both mirror 3
#2930F