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?
Forwarding performance:
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:
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).
"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?"
You need to reference both.
"What packet size is considered in computing this value of 68.4 Mpps? For example is it Jumbo frame or 64 packet size ?"
Vendor needs to note which. (NB: Generally, today, vendors quote PPS for minimum sized Ethernet packets - but do keep in mind PPS requirements vary based on packet size and medium.)
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).
"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?"
You need to reference both.
"What packet size is considered in computing this value of 68.4 Mpps? For example is it Jumbo frame or 64 packet size ?"
Vendor needs to note which. (NB: Generally, today, vendors quote PPS for minimum sized Ethernet packets - but do keep in mind PPS requirements vary based on packet size and medium.)
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