Broadcast traffic
Broadcast traffic is network traffic that has a single source but is destined for all hosts within a subnet. This is achieved by using a broadcast network address as the destination address of the communication.
At Layer 3, the IPv4 broadcast address is the last address in the subnet. However, the address 255.255.255.255 is known as a special case broadcast address, which also achieves the same result, regardless of the actual subnet within which it is used.
IPv6 does not have an equivalent broadcast mechanism.
At Layer 2, the corresponding Broadcast MAC address is FF:FF:FF:FF:FF:FF.
Broadcast traffic is one of three types of network traffic, the other two of which are Unicast traffic and obsidian/notes/Multicast traffic.
Links:
https://networklessons.com/multicast/introduction-to-multicast
Links to this page:
- ARP - Static ARP entry for own IP address
- ARP - promiscuous mode
- CDP - best practices
- DHCP - Broadcast flag
- DHCP - Message Types
- DHCP Request message sent as broadcast
- DMVPN - Phase 2 OSPF neighbor adjacencies
- EIGRP - Static neighbors over any L2 technology
- Multicast
- Network - BUM Traffic
- Network - broadcast domain
- OSPF - Advertising point to multipoint networks
- OSPF - Stuck in ATTEMPT neighbor state
- OSPF - manual neighbor configuration
- Routing - A Directed Broadcast is only detected by the last router
- Routing - Directed vs Local broadcast address
- Routing - directed broadcast
- STP - Shortest Path Bridging (SPB)
- Security - broadcast-multicast storm
- Security - storm control algorithm
- Serial Interface default broadcast address
- Unicast traffic
- VXLAN - MP-BGP EVPN and Multicast
- Wake on LAN