netstat -i Command Clarification ... Basic Qs

Folks

For a OLTP Benchmark under Transaction Load

Configuration:-
Benchmark Transaction Load Generator Machine <-> APP Server machine <-> DB Server machine APP Server has separate Network Cards for Communicating with Load Generator Machine & DB Server machine.

Need to Calculate the actual "Amount" of Network traffic (sent + received) in MBPS on each of Cards of the APP Server.

Qs Using netsta -i command, How are the Outputs in "Pkts" to be Converted into MBPS? ... Does "Delta" need to be taken between successive periodic (taken every minute) Outputs of "netstat -i" Command as is done when using the "netstat -f inet -p tcp" Command?

Sample netstat -i Output below:-

Name      Mtu  Network         Address         Ipkts   Ierrs Opkts   Oerrs Coll
lo0       4136 loopback        localhost       968542    0     968541    0     0
lan1      1500 192.168.16.0    lnhpit1         0         0     0         0     0
lan0      1500 172.21.197.128  lnhpit1         172748904 0     241879079 0     0
lan5      1500 172.21.197.0    lnhpit1         10588440  0     111       0     0

Oracle 10.2.3.0 (NON-RAC)
Application - Banking Java Application using Oracle thin driver to connect to the Database. HP-UX 11.11

Cheers & Thanks V much

Vivek

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