Configure Options for IPv4 PIM Multi-VRF

With multi-VRF (Virtual Routing and Forwarding) support, all Layer 3 multicast protocols operate as separate instances, per VRF, depending on the VRF-specific multicast configuration. All the required configuration and mcast routing tables have multiple instances, per VRF, and function simultaneously, allowing network paths to be segmented without using multiple routers.

Multi-VRF supports multiple instances of Layer 3 multicast protocols on the same router at the same time. When IPv4 PIM is enabled globally, you can configure various options for IPv4 multicast over multi-VRF, such as the rendezvous point and the PIM hello interval.

Enter global configuration mode.
```
device# configure terminal
```

Enter router configuration mode for the VRF.

device(config)# router pim vrf red
device(config-router-pim-vrf-red)#

Run the following commands as needed.
For more information, including more examples, see the Extreme SLX-OS Command Reference.
1. Configure a device interface as a rendezvous point (RP).
```
rp-address 100.1.1.1
```
2. Configure a static RP from a group list.
```
rp-address 4.4.4.4 static-rp-list
```
3. Configure Anycast RPs in multicast domains.
```
anycast-rp 100.1.1.1 anycast-rp-set
```
4. Configure a bootstrap router as a candidate RP to distribute RP information.
```
bsr-candidate interface loopback 11 mask 32
```
5. Configure the frequency with which a device sends PIM hello messages to its neighbors.
```
hello-interval 40
```
6. Configure the frequency with which PIM Join and Prune messages are sent.
```
message-interval 180
```
7. Configure the length of time a PIM device waits for hello messages before considering a neighbor to be absent.
```
nbr-timeout 160
```
8. Configure the length of time a PIM device waits to stop traffic after receiving a Leave message.
```
prune-wait 5
```
9. Configure a device as a candidate RP.
```
rp-candidate interface loopback 11
```
10. Enable multicast ECMP load sharing with dynamic rebalancing.
```
rpf ecmp rebalance
```
11. Enable Source-Specific Multicast mode for a specific address range.
```
ssm-enable range PL_ssm_range-230-to-234
```