D-Link DES-3326SRM Product Manual - Page 213
Multicasting, Multicast Groups, Reserved Multicast Address Assignment, Address, Assignment
UPC - 790069255304
View all D-Link DES-3326SRM manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 213 highlights
Multicasting D-Link DES-3326S Layer 3 Switch Multicasting is a group of protocols and tools that enable a single source point to send packets to groups of multiple destination points with persistent connections that last for some amount of time. The main advantage to multicasting is a decrease in the network load compared to broadcasting. Multicast Groups Class D IP addresses are assigned to a group of network devices that comprise a multicast group. The four most significant four bits of a Class D address are set to "1110". The following 28 bits is referred to as the 'multicast group ID'. Some of the range of Class D addresses are registered with the Internet Assigned Numbers Authority (IANA) for special purposes. For example, the block of multicast addresses ranging from 224.0.0.1 to 224.0.0.225 is reserved for use by routing protocols and some other low-level topology discovery and maintenance protocols. Some of the reserved IP multicast addresses are as follows: Reserved Multicast Address Assignment Address 224.0.0.0 224.0.0.1 224.0.0.2 224.0.0.3 224.0.0.4 224.0.0.5 224.0.0.6 224.0.0.7 224.0.0.8 224.0.0.9 224.0.0.10 224.0.0.11 224.0.0.12 224.0.0.13 224.0.0.14 224.0.0.15 224.0.0.16 224.0.0.17 224.0.0.18 224.0.0.19 through 224.0.0.225 224.0.0.21 Assignment Base Address (reserved) All Systems on this subnet All Routers on this subnet Unassigned DVMRP Routers OSPF IGP Routers OSPF IGP Designated Routers ST Routers ST Hosts All RIP2 Routers All IGRP Routers Mobile Agents DHCP Servers and Relay Agents All PIM Routers RSVP Encapsulation All CBT Routers Designated Sbm All Sbms VRRP Unassigned DVMRP on MOSPF 203