Hello,

In block diagrams all RB's have ports in switch(s).
for example: http://i.mt.lv/routerboard/files/RB3011 ... 123613.png
This is default hardware configuration, or this diagrams actual only if i set "Master Port" on interface?
And if i no set "Master Port", all ports completely isolated in L1/L2-layer?

for default all single port are isolated from eachother with all levels

>>for default all single port are isolated from eachother with all levels

If this is true, then why Mikrotik do not use ONE switch for all ports?
http://i.mt.lv/routerboard/files/RB3011 ... 123613.png
http://i.mt.lv/routerboard/files/CCR100 ... 142421.png

And why Mikrotik do not use switch for some CCR models?
http://i.mt.lv/routerboard/files/CCR101 ... 130439.png

Diagram shows switch chip and that those ports CAN be configured in switch groups. How you configure router is up to you.

All switch chip ports share single line to CPU, which leads to lower total throughput in L3 routing, that is the main reason why high end models do not have switch chips. If you want switch buy CRS.

>>All switch chip ports share single line to CPU

No, in this diagram we see TWO line to CPU (one line to each core) for each switch chip:
http://i.mt.lv/routerboard/files/RB3011 ... 123613.png

but, in this diagram we really see ONE line to CPU for switch chip:
http://i.mt.lv/routerboard/files/CCR100 ... 140835.png

why in CCR you did not use 4 lines for switch chip?

Qualcom and tile are two completely different CPUs.