tailieunhanh - Lecture TCP-IP protocol suite (3/e): Chapter 10 - Behrouz Forouzan

Chapter 10 - Internet group management protocol. Upon completion you will be able to: Know the purpose of IGMP, know the types of IGMP messages, understand how a member joins a group and leaves a group, understand membership monitoring, understand how an IGMP message is encapsulated, understand the interactions of the modules of an IGMP package. | Chapter 10 Upon completion you will be able to: Internet Group Management Protocol Know the purpose of IGMP Know the types of IGMP messages Understand how a member joins a group and leaves a group Understand membership monitoring Understand how an IGMP message is encapsulated Understand the interactions of the modules of an IGMP package Objectives TCP/IP Protocol Suite Figure Position of IGMP in the network layer TCP/IP Protocol Suite GROUP MANAGEMENT IGMP is a protocol that manages group membership. The IGMP protocol gives the multicast routers information about the membership status of hosts (routers) connected to the network. . TCP/IP Protocol Suite IGMP is a group management protocol. It helps a multicast router create and update a list of loyal members related to each router interface. Note: TCP/IP Protocol Suite IGMP MESSAGES IGMP has three types of messages: the query, the membership report, and the leave report. There are two types of query . | Chapter 10 Upon completion you will be able to: Internet Group Management Protocol Know the purpose of IGMP Know the types of IGMP messages Understand how a member joins a group and leaves a group Understand membership monitoring Understand how an IGMP message is encapsulated Understand the interactions of the modules of an IGMP package Objectives TCP/IP Protocol Suite Figure Position of IGMP in the network layer TCP/IP Protocol Suite GROUP MANAGEMENT IGMP is a protocol that manages group membership. The IGMP protocol gives the multicast routers information about the membership status of hosts (routers) connected to the network. . TCP/IP Protocol Suite IGMP is a group management protocol. It helps a multicast router create and update a list of loyal members related to each router interface. Note: TCP/IP Protocol Suite IGMP MESSAGES IGMP has three types of messages: the query, the membership report, and the leave report. There are two types of query messages, general and special. The topics discussed in this section include: Message Format TCP/IP Protocol Suite Figure IGMP message types TCP/IP Protocol Suite Figure IGMP message format TCP/IP Protocol Suite Table IGMP type field TCP/IP Protocol Suite IGMP OPERATION A multicast router connected to a network has a list of multicast addresses of the groups with at least one loyal member in that network. For each group, there is one router that has the duty of distributing the multicast packets destined for that group. The topics discussed in this section include: Joining a Group Leaving a Group Monitoring Membership TCP/IP Protocol Suite Figure IGMP operation TCP/IP Protocol Suite Figure Membership report TCP/IP Protocol Suite In IGMP, a membership report is sent twice, one after the other. Note: TCP/IP Protocol Suite Figure Leave report TCP/IP Protocol Suite The general query message does not define a particular .