I doing switch port one-on-one play eight flow test, the tester is one of the two mouth set to force model, and then the exchange of 8 port packet loss, all the friends have met this kind of situation, please?

CodePudding user response:

Added, the main chip is IP178D

CodePudding user response:

8 mouth full kumite, IP178D have such a strong exchange capacity?
Most of the switches in the kumite mode will be lost package,

CodePudding user response:

Thank kinkon007 reply, we other high-end chip will not appear such circumstance, the relationship with the chip, please? What reason be?

CodePudding user response:

It should study the chip datasheet, general two big factors affecting switches packet loss: chip exchange capacity, switch chip the size of the buffer, any one can't satisfy the needs full speed data forwarding, will lead to packet loss

CodePudding user response:

Again today to see the Datasheet, found IP178D does not support VLAN. I don't know whether this reason, but in a later article is referred to a VLAN, don't understand what is support or not support.

CodePudding user response:

Basic certainly thank, this problem is the problem that the cache is too small, slow down after just won't be the collision,

CodePudding user response:

But I still don't understand this slow down, it goes like this:
Rate of port -- -- -- -- -- - -- -- -- -- -- --
M - 100% - 100
Results: the lost package
Rate of port -- -- -- -- -- - -- -- -- -- -- --
10 m - 100% -
Results: the lost package
Rate of port -- -- -- -- -- - -- -- -- -- -- --
M - 50% - 100
Results: no packet loss,

50% of the supposedly 100 m & gt;> 100% of the 10 m, but why the result is not the same,

Another IP178D cache is 512 k,

CodePudding user response:

suddenly learned a lot, thanks for sharing