CSCI -2950-u Switching and Routing Overview. Rodrigo Fonseca. Most slides from CS-168. Switched Ethernet. Most common link layer today Most popular bandwidths: 1Gbps, 10Gbps, 40Gbps growing All switched, in practice No CSMA-CD. Ethernet Addressing.
CSCI-2950-uSwitching and Routing Overview
Most slides from CS-168
* In a later protocol RSTP, there can be ports configured as backups and alternates.
I think that I shall never see
a graph more lovely that a tree.
A tree whose crucial property
is loop-free connectivity.
A tree that must be sure to span
so packet can reach every LAN.
First the root must be selected.
By ID, it is elected.
Least cost paths from root are traced.
In the tree, these paths are placed.
A mesh is made by folks like me,
then bridges find a spanning tree.
H1-> H2: H2.ip & H1.mask != H1.subnet => no direct path
R1’s Forwarding Table