Hi every one,
Please consider the following example:
1)Above what should we go by Switching capacity or forwarding performance of 68.4 Mpps when deciding if the switch can support /provide desired forwarding rate?
What packet size is considered in computing this value of 68.4 Mpps? For example is it Jumbo frame or 64 packet size ?
For example, If we have to look for a switch that can support 40 GIG forwarding rate, and if we look at 68Mpps only , we can arrive at two different conclusions:
Packet size :64byte
68.4x64 Mbyte/sec or around 35g/sec
Switch can not support our target rate.
Packet size: 9000 byte
68.4x9000 M byte/sec or 615 g/sec
Switch exceeds our target rate.
Have a nice weekend!!
Go to Solution.
It appears that they have used a 1000 byte frame as the baseline to measure the total capacity of this particular switch. So, 68,000,0000*1000=68,0000,0000,000 which is equal to 68 Gbps.
If you use a 64-byte frame as the baseline with about 26 bytes of overhead for a total of 90 bytes, that number is much lower for a 12 port 1Gig fiber switch full duplex (1Gig in and 1Gig out).
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