In this blog we will look at a simple but effective means for deploying multicast router over frr to the CME multicast data platform
note: You typically will get a ipv4 address that will be used for the pim-RP
Traffic for pim-joins and multicast will be delivered via the gre interface ( gre1 in my example )
You will need to install snapd & frr and have your gre1 interface defined b4 starting .
sudo yum install snapd
yum install -y https://github.com/FRRouting/frr/releases/download/frr-5.0.1/frr-5.0.1-2018070501.el7.centos.x86_64.rpm
sudo snap install frr
sudo systemctl enable --now snapd.socket
sample frr.conf
[kfelix@mcastrt1 ~]# /var/lib/snapd/snap/bin/frr.vtysh -c "show running"
Building configuration...
Current configuration:
!
frr version 7.5.1
frr defaults traditional
hostname mcastrt1.yourdomain.com
log file /var/log/pimd
log stdout
no ipv6 forwarding
ip multicast rpf-lookup-mode longer-prefix
ip pim rp 69.50.112.254 224.0.0.0/4
ip mroute 69.50.112.0/25 10.247.x.xx
no service integrated-vtysh-config
!
ip route 69.50.112.0/25 10.247.4.145
ip route 69.50.112.254/32 10.247.x.xx
!
interface dummy255
description test-dummy-interface-for-joins
ip igmp
ip igmp join 224.0.28.85
ip igmp version 2
ip pim
multicast
!
interface gre1
description CME MDP GRE-tunnel
ip pim
multicast
!
interface pimreg
ip pim
multicast
!
line vty
!
end
The dummy255 interface was crafted for testing and before enable igmp for the LAN interface.
NSE ( network security expert) and Route/Switching Engineer
