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How To Configure an S-Series and Summit to Route Multicast Between Each Other using PIM Sparse

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TitleHow To Configure an S-Series and Summit to Route Multicast Between Each Other using PIM Sparse
The following configures an S-Series to Route to Summits at a remote location  using PIM. The S-Series is configured to be the RP because it is the core router. 
Only one Summit router is shown and interface commands are shown only one interface for briefness. 

The multicast address  is for  Cisco UCS to communicate via  multicast to the phones at the remote sites.
  • XOS
  • EOS
  • S-Series
  • PIM-Sparse
Configure the Summits
1.  Create a policy file to profile the multicast groups to route
edit policy mcastgroups
entry allowedGroups {
    if match any {
    then {

2. Enable multicast forwarding on vlans wheremulticast is routed
enable ipmcforwarding vlan "User"
3.  Enable IGMP filtering for each vlan
enable igmp vlan "User" IGMPv3

4. Enable PIM on each interface
configure pim add vlan "User" sparse
5.  Configure a bootstrap router with priority by configuring at least one interface as BSR eligible 
configure pim cbsr vlan " RoutedLink" 30

6.  configure the rendezvous point to use the specified policy file
configure pim crp vlan " RoutedLink" "mcastgroups" 192
6.  Enable PIM
enable pim

Configure the S-Series

1.  ConfigurePIM on S-Series interfaces routing multicast
interface vlan.0.255
  ip address primary
  ip pim sparse-mode
  no shutdown

 2.  Configure an access list to profile  the multicast group
ip access-list standard mcastgroups permit host

3.   Configure the S-Series  as a bootstrap router
ip pim bsr-candidate priority 255
4.  Configure the Switch to be eligible to be an RP using an interface IP 
ip pim rp-candidate group-list mcastgroups

Additional notes
  • One BSR is required
  • The router  with the highest priority   is elected BSR
  • One RP is required
  • The router with the highest priority will be elected RP
  • Summits require a license for PIM
  • Edit commands

#Lower case  i to append syntax after the cursor
#Lower case  a to delete syntax after the cursor
#<esc> to exit edit mode
#:wq to save and quit

refer to the EXOS User Guide for a full list of options




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