I am working on trying to setup our network for multicast traffic. In the coming months we will be installing new equipment that sends out multicast traffic. In the past we have only had 1 VLAN so we just used IGMP querier and snooper and this met our needs. In the new office that we just moved into we have segregated the network into multiple VLANs. I understand that we will need to use PIM to accomplish what we want. After some research I understand that PIM Dense Mode will broadcast initially out to every user and then prune back the ports that do not want the multicast feed. This leads me to believe that PIM Sparse Mode is the better option.
We are currently a Dell PowerConnect shop with a pretty simple layout. (See below for our network topology diagram)
My questions are:
- Should we setup on our core network switch OSPF with a router ID of 1.1.1.1 and then not set any OSPF settings on any other switch?
- Would PIM Sparse Mode only need to be enabled on the core switches or on all of the switches in the network?
We are wanting to keep as much of the data from hitting our Cisco switch as that connects to our other branch offices.
When I attempted to setup PIM Sparse Mode I did not see any neighbors showing up which I believe is needed to have PIM work.
I initially looked at this PDF for sample configurations but they use PIM Dense and following this paper didn't work at all.
ftp://ftp.dell.com/Manuals/Common/powerconnect-m6220_White%20Papers48_en-us.pdf
Update: I seemed to be able to get this working in my test environment but that used 2x 6224 switches. I have not been able to get this to work yet going through the 8132F switches yet.
Update: Does IP PIM Sparse need to be enabled on each interface on the acting router? Have been testing with this just enabled on the VLAN not the interface.
Update: Have been doing some more testing with VLC player trying to get this working. Have attached my configs for the switches. Any suggestions? After upgrading the 8132F to version 6 of the firmware it does remove the "ip igmp" command from the VLAN.
Core config *Switch shows model of N4032F but this is indeed an 8132F
!Current Configuration: !System Description "Dell Networking N4032F, 6.0.0.8, Linux 2.6.32.9" !System Software Version 6.0.0.8 !Cut-through mode is configured as disabled ! configure vlan 9 name "Metronet" exit vlan 10 name "Servers" exit vlan 11 name "Endpoints" exit vlan 12 name "Voice" exit vlan 13 name "Guest" exit vlan 14 name "Security Cameras" exit vlan 15 name "Mobile Media" exit vlan 9-15 exit snmp-server location "MSH Rack 1 Slots 36-37" snmp-server contact "Daniel" hostname "Core" slot 1/0 3 ! Dell Networking N4032F slot 1/1 6 ! Dell QSFP Card slot 2/0 3 ! Dell Networking N4032F slot 2/1 6 ! Dell QSFP Card sntp unicast client enable sntp server 10.10.10.242 clock timezone -5 minutes 0 stack member 1 2 ! N4032F member 2 2 ! N4032F exit interface out-of-band ip address none exit ip access-list BlockGuest3 permit tcp 10.11.13.0 0.0.0.255 10.11.10.40 0.0.0.0 permit tcp 10.11.13.0 0.0.0.255 eq 67 10.11.10.12 0.0.0.0 permit ip 10.11.13.0 0.0.0.255 10.11.15.0 0.0.0.0 deny ip 10.11.13.0 0.0.0.255 10.10.0.0 0.0.0.255 deny ip 10.11.13.0 0.0.0.255 10.11.10.0 0.0.0.255 deny ip 10.11.13.0 0.0.0.255 10.11.11.0 0.0.0.255 deny ip 10.11.13.0 0.0.0.255 10.11.12.0 0.0.0.255 permit every exit ip routing ip route 0.0.0.0 0.0.0.0 10.11.9.2 interface vlan 1 exit interface vlan 9 ip address 10.11.9.1 255.255.255.252 exit interface vlan 10 ip address 10.11.10.1 255.255.255.0 ip pim exit interface vlan 11 ip address 10.11.11.1 255.255.255.0 ip pim exit interface vlan 12 ip address 10.11.12.1 255.255.255.0 ip pim exit interface vlan 13 ip address 10.11.13.1 255.255.255.0 ip access-group BlockGuest3 in 1 exit interface vlan 14 ip address 10.11.14.1 255.255.255.0 exit interface vlan 15 ip address 10.11.15.1 255.255.255.0 ip pim exit username "admin" password password_removed privilege 15 encrypted ip ssh server ip multicast-routing ip pim sparse-mode ip pim rp-address 10.11.10.1 224.0.0.0 240.0.0.0 ! interface Te1/0/1 description "Metronet" switchport access vlan 9 exit ! interface Te1/0/3 channel-group 1 mode active description "MDF" switchport mode trunk exit ! interface Te1/0/4 channel-group 2 mode active description "IDF" switchport mode trunk exit ! interface Te2/0/3 channel-group 1 mode active description "MDF" switchport mode trunk voice vlan dscp 1 exit ! interface Te2/0/4 channel-group 2 mode active description "IDF" switchport mode trunk voice vlan dscp 1 exit ! interface port-channel 1 classofservice trust ip-dscp switchport mode trunk exit ! interface port-channel 2 classofservice trust ip-dscp switchport mode trunk exit ! snmp-server engineid local 800002a203d067e5d1a2e3 snmp-server community "dev1" ro ipaddress 10.10.10.169 snmp-server community "nagios" ro ipaddress 10.10.10.31 snmp-server host 10.10.10.31 traps version 2 "nagios" enable password password_removed encrypted exit
MDF Config
!Current Configuration: !System Description "PowerConnect 6248P, 3.3.8.2, VxWorks 6.5" !System Software Version 3.3.8.2 !Cut-through mode is configured as disabled ! configure vlan database vlan 10-15 exit hostname "MDF" sntp unicast client enable sntp server 10.10.10.242 clock timezone -5 minutes 0 stack member 1 5 member 2 5 member 3 5 exit ip address 10.11.10.31 255.255.255.0 ip default-gateway 10.11.10.1 ip address vlan 10 no ip helper enable interface vlan 10 name "Servers" exit interface vlan 11 name "Endpoint" exit interface vlan 12 name "Voice" exit interface vlan 13 name "Guest" exit interface vlan 14 name "Security Cameras" exit username "admin" password password_removed level 15 encrypted voice vlan ip ssh server bridge multicast filtering ip igmp snooping ! interface ethernet 2/g14 classofservice trust ip-dscp switchport mode general switchport general pvid 11 switchport general allowed vlan add 11 switchport general allowed vlan add 12 tagged switchport general allowed vlan remove 1 voice vlan 12 exit ! interface ethernet 3/g46 classofservice trust ip-dscp switchport mode general switchport general pvid 11 switchport general allowed vlan add 11 switchport general allowed vlan add 12 tagged switchport general allowed vlan remove 1 voice vlan 12 exit ! interface ethernet 3/xg3 channel-group 1 mode auto switchport mode general switchport general allowed vlan add 10-14 exit ! interface port-channel 1 classofservice trust ip-dscp switchport mode general switchport general allowed vlan add 10-15 tagged exit snmp-server community daniel ro ipaddress 10.10.10.129 snmp-server community nagios ro ipaddress 10.10.10.31 snmp-server host 10.10.10.31 nagios traps v2 exit
Best Answer
OSPF is not necessary for this implementation.
Pim-SM needs to be enabled on each L3 interface on which you want to allow the multicast traffic. For example, if you wish to contain the traffic to Vlans 15 and 14, you would have to do the following on your core:
If you want the traffic to traverse all Vlans, then you will need the appropriate interface configuration under each Vlan. Your L2 switches will need IGMP snooping turned on (ideally on all interfaces via the global configuration).
For a very basic multicast setup like this, these should be the only features that you would need.