Technology what you offer?

Routing = passing

Think of three router triangle.


Passing

Passing polos

Passing if (conditional)


Access-list technology
block certain packet with label ....
permit certain packet with label ....

Access-list standard: if you want examine only layer 3 use this type
Access-list extended: if you want to examine packet's at layer 3 (network, transport, application) and above use this type

NAT
translate certain packet with label ....
don't translate certain packet with label .....

Spanning-tree
: distributed technologies, means each switch process and tell other

OSPF
: distributed technologies