Setting “speed 100” tells the interface to operate as 100BASE-TX PHY, which clocks frames onto the wire at 100Mbps. “speed 500” would not be a valid command as it would not correspond to an Ethernet PHY. Instead you would configure “speed 1000”, whic...

To send a prefix to a BGP neighbor, the prefix must first be in the BGP RIB. To be in the BGP RIB, the prefix must be either learned from a BGP neighbor, or injected locally. To inject locally, the prefix must first be in the routing table, then it c...