diff --git a/doc/user/pim.rst b/doc/user/pim.rst index e385df3b6d..5148d3baff 100644 --- a/doc/user/pim.rst +++ b/doc/user/pim.rst @@ -506,20 +506,25 @@ Clear commands reset various variables. PIM EVPN configuration ====================== -To use PIM in the underlay for overlay BUM forwarding associate a -multicast group with the L2 VNI. The actual configuration is based -on your distribution. Here is an ifupdown2 example - -auto vx-10100 -iface vx-10100 - vxlan-id 10100 - bridge-access 100 - vxlan-local-tunnelip 27.0.0.11 - vxlan-mcastgrp 239.1.1.100 >>>>>>>> -PIM will see the vxlan configuration and auto configure state to properly -forward BUM traffic. +To use PIM in the underlay for overlay BUM forwarding associate a multicast +group with the L2 VNI. The actual configuration is based on your distribution. +Here is an ifupdown2 example:: + + auto vx-10100 + iface vx-10100 + vxlan-id 10100 + bridge-access 100 + vxlan-local-tunnelip 27.0.0.11 + vxlan-mcastgrp 239.1.1.100 + +.. note:: + + PIM will see the ``vxlan-mcastgrp`` configuration and auto configure state + to properly forward BUM traffic. + +PIM also needs to be configured in the underlay to allow the BUM MDT to be +setup. This is existing PIM configuration: -PIM also needs to be configured in the underlay to allow the BUM MDT to -be setup. This is existing PIM configuration - - Enable pim on the underlay L3 interface via the "ip pim" command. - Configure RPs for the BUM multicast group range. - Ensure the PIM is enabled on the lo of the VTEPs and the RP.