|
Introduction of PIM-DIM PIM (Protocol Independent Multicast) is a multicast routing protocol that does not depend on a specific unicast routing protocol, and can use the unicast routing table established by any unicast routing protocol to perform RPF checking functions to establish multicast routes. Because PIM does not require sending and receiving multicast routing updates, it has much lower overhead than other multicast routing protocols. PIM defines two modes: Dense Mode and Sparse Mode Applied scenario: PIM-DM (Protocol Independent Multicast-Dense Mode), which is the dense mode of PIM, is suitable for small networks with relatively concentrated multicast members. Case of configuration a) Requirement 1) S5750-H-1, S5750-H-2 and S5750-H-3 are three core devices. They are interconnected using a Layer 3 port and run OSPF, process 110, and all belong to area 0 2) The user PC's gateway is on S5750-H-1 and the multicast server is directly connected to S5750-H-2, which are each republished into the OSPF process 3) Layer 3 multicast routing protocol PIM-DM should be enabled on the S5750-H-1, S5750-H-2 and S5750-H-3 switches 4) Layer 2 multicast routing protocol IVGL to be enabled on the SS2928G-E switch 5) The PC downlinked by S29E is able to make on-demand video inside the multicast server b) Network Topology  C) Configuration: Configurations on Core Switches S5750-H-1: 1) Create VLAN 10, user gateway SVI address, trunk configuration with access switches, and IP address configuration with other core switches for Layer 3 interconnection S5750-H-1>enable S5750-H-1#configure terminal S5750-H-1(config)#vlan 10 S5750-H-1(config-vlan)#exit S5750-H-1(config)#interface vlan 10 S5750-H-1(config-if-VLAN 10)#ip address 192.168.1.254 255.255.255.0 S5750-H-1(config-if-VLAN 10)#exit S5750-H-1(config)#interface gigabitEthernet 0/1 S5750-H-1(config-if-GigabitEthernet 0/1)#switchport mode trunk S5750-H-1(config-if-GigabitEthernet 0/1)#exit S5750-H-1(config)#interface gigabitEthernet 0/2 S5750-H-1(config-if-GigabitEthernet 0/2)#no switchport S5750-H-1(config-if-GigabitEthernet 0/2)#ip address 172.16.12.1 255.255.255.252 S5750-H-1(config-if-GigabitEthernet 0/2)#exit S5750-H-1(config)#interface gigabitEthernet 0/3 S5750-H-1(config-if-GigabitEthernet 0/3)#no switchport S5750-H-1(config-if-GigabitEthernet 0/3)#ip address 172.16.13.1 255.255.255.252 S5750-H-1(config-if-GigabitEthernet 0/3)#exit S5750-H-1(config)#interface loopback 0 S5750-H-1(config-if-Loopback 0)#ip address 1.1.1.1 255.255.255.255 S5750-H-1(config-if-Loopback 0)#exit 2) Configure OSPF Routing for the S5750-H-1 S5750-H-1(config)#router ospf 110 S5750-H-1(config-router)#router-id 1.1.1.1 Change router-id and update OSPF process! [yes/no]:y S5750-H-1(config-router)#network 172.16.12.0 0.0.0.3 area 0 S5750-H-1(config-router)#network 172.16.13.0 0.0.0.3 area 0 S5750-H-1(config-router)#network 192.168.1.0 0.0.0.255 area 0 S5750-H-1(config-router)#exit 3) Configure Multicast Routing for the S5750-H-1 S5750-H-1(config)#ip multicast-routing S5750-H-1(config)#interface vlan 10 S5750-H-1(config-if-VLAN 10)#ip pim dense-mode S5750-H-1(config-if-VLAN 10)#exit S5750-H-1(config)#interface gigabitEthernet 0/2 S5750-H-1(config-if-GigabitEthernet 0/2)#ip pim dense-mode S5750-H-1(config-if-GigabitEthernet 0/2)#exit S5750-H-1(config)#interface gigabitEthernet 0/3 S5750-H-1(config-if-GigabitEthernet 0/3)#ip pim dense-mode S5750-H-1(config-if-GigabitEthernet 0/3)#end S5750-H-1#wr S5750-H-2: 1) Create VLAN 20, multicast server gateway SVI address, multicast server connection port set to access vlan 20, layer 3 interconnect IP address configuration with other core switches: S5750-H-2#configure terminal S5750-H-2(config)#vlan 20 S5750-H-2(config-vlan)#exit S5750-H-2(config)#interface vlan 20 S5750-H-2(config-if-VLAN 20)#ip address 192.168.20.254 255.255.255.0 S5750-H-2(config-if-VLAN 20)#exit S5750-H-2(config)#interface gigabitEthernet 0/1 S5750-H-2(config-if-GigabitEthernet 0/1)#switchport access vlan 20 S5750-H-2(config-if-GigabitEthernet 0/1)#exit S5750-H-2(config)#interface gigabitEthernet 0/2 S5750-H-2(config-if-GigabitEthernet 0/2)#no switchport S5750-H-2(config-if-GigabitEthernet 0/2)#ip address 172.16.12.2 255.255.255.252 S5750-H-2(config-if-GigabitEthernet 0/2)#exit S5750-H-2(config)#interface gigabitEthernet 0/4 S5750-H-2(config-if-GigabitEthernet 0/4#no switchport S5750-H-2(config-if-GigabitEthernet 0/4#ip address 172.16.23.1 255.255.255.252 S5750-H-2(config-if-GigabitEthernet 0/4)#exit S5750-H-2(config)#interface loopback 0 S5750-H-2(config-if-Loopback 0)#ip address 2.2.2.2 255.255.255.255 S5750-H-2(config-if-Loopback 0)#exit 2) Configure OSPF Routing for the S5750-H-2 S5750-H-2(config)#router ospf 110 S5750-H-2(config-router)#router-id 2.2.2.2 Change router-id and update OSPF process! [yes/no]:y S5750-H-2(config-router)#network 172.16.12.0 0.0.0.3 area 0 S5750-H-2(config-router)#network 172.16.23.0 0.0.0.3 area 0 S5750-H-2(config-router)#network 192.168.20.0 0.0.0.255 area 0 S5750-H-2(config-router)#exit 3) Configure Multicast Routing for the S5750-H-2 S5750-H-2(config)#ip multicast-routing S5750-H-2(config)#interface vlan 20 S5750-H-2(config-if-VLAN 20)#ip pim dense-mode S5750-H-2(config-if-VLAN 20)#exit S5750-H-2(config)#interface gigabitEthernet 0/2 S5750-H-2(config-if-GigabitEthernet 0/2)#ip pim dense-mode S5750-H-2(config-if-GigabitEthernet 0/2)#exit S5750-H-2(config)#interface gigabitEthernet 0/4 S5750-H-2(config-if-GigabitEthernet 0/4)#ip pim dense-mode S5750-H-2(config-if-GigabitEthernet 0/4)#end S5750-H-2#wr S5750-H-3 1) Create a Layer 3 interconnect IP address configuration with other core switches: S5750-H-3#configure terminal S5750-H-3(config)#interface gigabitEthernet 0/3 S5750-H-3(config-if-GigabitEthernet 0/3)#no switchport S5750-H-3(config-if-GigabitEthernet 0/3)#ip address 172.16.23.2 255.255.255.252 S5750-H-3(config-if-GigabitEthernet 0/3)#exit S5750-H-3(config)#interface gigabitEthernet 0/4 S5750-H-3(config-if-GigabitEthernet 0/4#no switchport S5750-H-3(config-if-GigabitEthernet 0/4#ip address 172.16.13.2 255.255.255.252 S5750-H-3(config-if-GigabitEthernet 0/4)#exit S5750-H-3(config)#interface loopback 0 S5750-H-3(config-if-Loopback 0)#ip address 3.3.3.3 255.255.255.255 S5750-H-3(config-if-Loopback 0)#exit 2) Configure OSPF Routing for the S5750-H-3 S5750-H-3(config)#router ospf 110 S5750-H-3(config-router)#router-id 3.3.3.3 Change router-id and update OSPF process! [yes/no]:y S5750-H-3(config-router)#network 172.16.13.0 0.0.0.3 area 0 S5750-H-3(config-router)#network 172.16.23.0 0.0.0.3 area 0 S5750-H-3(config-router)#exit 3) Configure Multicast Routing for the S5750-H-3 S5750-H-3(config)#ip multicast-routing S5750-H-3(config)#interface gigabitEthernet 0/3 S5750-H-3(config-if-GigabitEthernet 0/3)#ip pim dense-mode S5750-H-3(config-if-GigabitEthernet 0/3)#exit S5750-H-3(config)#interface gigabitEthernet 0/4 S5750-H-3(config-if-GigabitEthernet 0/4)#ip pim dense-mode S5750-H-3(config-if-GigabitEthernet 0/4)#end S5750-H-3#wr Configurations on the Access Switch S2928G-E 1) Create a vlan on the access switch and divide the vlan, set the port connecting to the user as access port and the uplink port as trunk port S29E(config)#vlan 10 S29E(config-vlan)#exit S29E(config)#interface gigabitEthernet 0/25 S29E(config-if-GigabitEthernet 0/25)#switchport mode trunk S29E(config-if-GigabitEthernet 0/25)#exit S29E(config)#interface range fastEthernet 0/1-2 S29E(config-if-range)#switchport access vlan 10 S29E(config-if-range)#exit 2) On the access switch, globally configure IGMP Snooping to IVGL mode and configure port g0/25 as the routing connection port for VLAN 10. S29E(config)#vlan 10 S29E(config-vlan)#exit S29E(config)#ip igmp snooping ivgl S29E(config)#ip igmp snooping vlan 10 mrouter interface g0/25 S29E(config)#end S29E#wr Verification 1) View the IGMP Group group on the access switch S29E#show ip igmp groups IGMP Connected Group Membership Group Address Interface Uptime Expires Last Reporter 225.1.1.1 VLAN 20 00:03:48 00:03:20 192.168.100.1 2) View the PIM-DM information of the interface S5750-H-2#show ip pim dense-mode interface detail GigabitEthernet 0/2(vif-id: 1): Address 172.18.12.2 Hello period 30 seconds, Next Hello in 30 seconds Over-ride interval 2500 milli-seconds Propagation-delay 500 milli-seconds Neighbors: 172.18.12.1 GigabitEthernet 0/4(vif-id: 1): Address ip address 172.16.23.1 Hello period 30 seconds, Next Hello in 30 seconds Over-ride interval 2500 milli-seconds Propagation-delay 500 milli-seconds Neighbors: ip address 172.16.23.2 3) View next hop information for PIM-DM S5750-H-2#show ip pim dense-mode nexthop Destination Nexthop Nexthop Nexthop Metric Pref Num Addr Interface 192.168.100.2 1 172.18.12.1 GigabitEthernet 0/1 0 1 |
This site contains user submitted content, comments and opinions and is for informational purposes only. Ruijie may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Ruijie can therefore provide no guarantee as to the efficacy of any proposed solutions on the community forums. Ruijie disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Ruijie Community Terms of Use.
More ways to get help: Visit Support Videos, call us via Service Hotline, Facebook or Live Chat.
©2000-2023 Ruijie Networks Co,Ltd
Level 1
