Multicast

Diagram

Classes

underlay (vxlan)

Name	Type	Constraint	Mandatory	Default Value
multicast	Class	`[multicast]`	No

multicast (vxlan.underlay)

Name	Type	Constraint	Mandatory	Default Value
rendezvous_points	Choice	`2`, `4`	No	`2`
rp_mode	Choice	`asm`, `bidir`	No	`asm`
underlay_rp_loopback_id	Integer	min: `0`, max: `1023`	No	`254`
ipv4	Class	`[ipv4]`	No
ipv6	Class	`[ipv6]`	No
underlay_primary_rp_loopback_id	Integer	min: `0`, max: `1023`	No	`2`
underlay_backup_rp_loopback_id	Integer	min: `0`, max: `1023`	No	`3`
underlay_second_backup_rp_loopback_id	Integer	min: `0`, max: `1023`	No	`4`
underlay_third_backup_rp_loopback_id	Integer	min: `0`, max: `1023`	No	`5`
enable_mvpn_vri_id_range	Boolean	`true`, `false`	No	`true`
mvpn_vri_id_range	Class	`[mvpn_vri_id_range]`	No

ipv4 (vxlan.underlay.multicast)

Name	Type	Constraint	Mandatory	Default Value
anycast_rp	IP		No
group_subnet	IP		No	`239.1.1.0/25`
authentication_enable	Boolean	`true`, `false`	No	`false`
authentication_key	String		No
trm_enable	Boolean	`true`, `false`	No	`false`
trm_default_group	IP		No	`239.1.1.0`

ipv6 (vxlan.underlay.multicast)

Name	Type	Constraint	Mandatory	Default Value
group_subnet	IP		No	`ff1e::/121`
trmv6_enable	Boolean	`true`, `false`	No	`false`
trmv6_default_group	IP		No	`ff1e::`

mvpn_vri_id_range (vxlan.underlay.multicast)

Name	Type	Constraint	Mandatory	Default Value
from	Integer	min: `1`, max: `65535`	Yes
to	Integer	min: `1`, max: `65535`	No

Example 1

Here is an explanation of the provided VXLAN underlay multicast data model:

rendezvous_points: 2, specifies the number of rendezvous points (RPs) used in the multicast domain. RPs are multicast routers that act as meeting points for multicast sources and receivers. You can have two or four RPs.
rp_mode: asm, Sets the RP mode to ASM (Any-Source Multicast), which allows receivers to receive multicast traffic from any source.
ipv4.group_subnet: 239.1.1.0/25, defines the IPv4 multicast group subnet used for VXLAN underlay multicast traffic.
ipv4.authentication_enable: false, indicates that multicast authentication is disabled for IPv4.
ipv4.trm_enable: true, enables the Tenant Routed Multicast (TRM) feature for IPv4 multicast, which helps manage multicast distribution trees.
ipv4.trm_default_group: 239.1.1.0, specifies the default Underlay Multicast group IPv4 address assigned for every overlay VRF
ipv6.group_subnet: ff1e::/121, defines the IPv6 multicast group subnet for VXLAN underlay multicast traffic.
ipv6.trmv6_enable: true, enables the Tenant Routed Multicast feature for IPv6 multicast.
ipv6.trmv6_default_group: "ff1e::", specifies the default Underlay Multicast group IPv6 address assigned for every overlay VRF
mvpn_vri_id_range, defines the MVPN (Multicast VPN) Virtual Routing Instance ID range used for L3VNI multicast routing. Valid range: 1-65535. Required when enable_mvpn_vri_id_range is true in the global fabric configuration. The to value is optional; if omitted, only the from value is used as a single VRI ID.

vxlan:
  underlay:
    multicast:
      rendezvous_points: 2
      rp_mode: asm
      ipv4:
        group_subnet: 239.1.1.0/25
        authentication_enable: false
        trm_enable: true
        trm_default_group: 239.1.1.0
      ipv6:
        group_subnet: ff1e::/121
        trmv6_enable: true
        trmv6_default_group: "ff1e::"   # Quote due to ending in colon to avoid YAML error
      mvpn_vri_id_range:
        from: 2000
        to: 2999

Starting with release 0.4.3, you can assign IPv4 addresses for the Anycast RP in the underlay. In this case, you must configure the IP address used for the Rendezvous Point (RP).

---
vxlan:
  underlay:
    multicast:
      rendezvous_points: 2
      rp_mode: asm
      ipv4:
        anycast_rp: 1.1.1.1
        group_subnet: 239.1.1.0/25
        authentication_enable: false
        trm_enable: true
        trm_default_group: 239.1.1.0
      ipv6:
        group_subnet: ff1e::/121
        trmv6_enable: true
        trmv6_default_group: "ff1e::"   # Quote due to ending in colon to avoid YAML error