multicast – IT Blog

iPerf Mulicast

I will show an example of running iPerf to test network bandwidth using UDP Multicast.

Teleste Luminato Firmware Update

For example, I will update the firmware on Teleste Luminato with the installed firmware version 5.2.34.

Configuring Multicast on Eltex MES2324B

Once I needed to receive Multicast traffic from different TV providers and from different VLANs, so I had to use access-list in order to correctly transmit the igmp-report from the client to the required VLAN. If Multicast is in only one VLAN, then you can do without access-list.

Configuring PIM on D-Link Switches

I use the D-Link DGS-3612G switch as an example.

Blocking multicast IP addresses on D-Link

To block multicast ip addresses I will use ACL. Using an example of multicast, IPTV is broadcast via D-Link DGS-3612G and suppose that some channels need to be blocked, for this we create the following ACL rules:

Configuring IGMP snooping on Cisco

I will give an example of setting up IGMP snooping on Cisco, there was a Cisco WS-C2960-24TT-L switch at hand and also some Cisco Nexus.

Configuring PIM on HP A5800 Switch

First make a copy of the configuration file on the tftp server:

backup startup-configuration to 192.168.1.100

To configure the PIM on the HP A5800 switch, connect to the switch via telnet and enter the following commands:

1) Enable the multicast routing switch and pim-sm in vlan 963 which comes from the provider.

system-view
multicast routing-enable
interface Vlan-interface 963
ip address 172.24.24.158 255.255.255.252
pim sm
quit

2) Turn on pim-sm and igmp in vlan 964 on which IPTV will be broadcast to the local network.

interface Vlan-interface 964
ip address 172.25.25.25 255.255.192.0
pim sm
igmp enable
quit

3) We’ll assign the static ip from which the multicast is broadcast.

pim
static-rp 10.0.200.200
quit

4) Add the route to ip from which the multicast is broadcast.

ip route-static 10.0.200.200 255.255.255.255 Vlan-interface963 172.24.24.157

5) Suppose that we accept multicast on vlan 963 tag.

interface Bridge-Aggregation1
port hybrid vlan 963 tagged

6) We will configure any free port for iptv verification and connect to it a computer for example with a playlist in the VLC player.

interface GigabitEthernet1/0/5
port access vlan 964

To test the health and diagnostics, you can use for example the following commands:

display pim interface
display pim interface verbose
display pim rp-info
display pim bsr-info
display pim neighbor
display pim routing-table
display igmp interface
display pim control-message counters
display pim claimed-route

Configuring PIM on MikroTik

Here is an example of configuring PIM on two MikroTik routers:

Let us configure the first MikroTik.
Add a pim interface and check:

routing pim interface add
routing pim interface p

Add the IP address of RP (this MikroTik):

routing pim rp add address=IP-ADDRESS

Let’s specify from which IP multicast traffic is allowed:

routing pim interface set alternative-subnets=238.0.0.0/24,239.0.0.0/24

Let’s configure the second MikroTik.
Add a pim interface to the uplink WAN port, I have ether1:

routing pim interface add interface=ether1
routing pim interface p

Add the IP address of the RP (the first MikroTik):

routing pim rp add address=IP-АДРЕС

Let’s specify the route of the multicast source: (first MikroTik):

ip route add 239.0.0.0/24 via IP-АДРЕС

Done.