| Auto-RP | show pim rps detail or extensive |
|---|---|
| Auto-RP on Candidate | enable PIM dense mode: + add dense-group ( 224.0.1.39 and 224.0.1.40 ) 224.0.1.39: announcement 224.0.1.40: discovery |
| set protocols pim rp auto-rp announce | |
Electors | SAME + set protocols pim rp auto-rp mapping |
if multiple electors, the one with highest IP@ is the RP Agent other Elector Rx msg from higher IP@ agent stop sending messages | |
| Client | Dense Mode + set protocols pim rp auto-rp |
| BSR | need to be supported by all router / hop-by-hop messages |
|---|---|
| candidate to become BSR | router with bootstrap-priority ( 0= can't be elected and 255 the highest value) |
| BSR Election | single BSR is elected 1- highest priority 2- highest loopback address ( in Junos: if multiple address a setup , the used one by the pim protocol: 1- primary address or the lowest IP is selected! ) |
| all candidate RP | send c-rp-av message |
| BSR collect all c-rp-adv message | create a rp-set ( list of rp and their group ) |
| send in the domain the rp-set in a | |
| Client select RP from rp-set | 1- Full list of RP: the most specific group > RP list2 |
| 2- RP list2: rp wit highest priority for grp > RP list 3 | |
| 3- RP list3: highest hash ( grp@, IP@, mask length ) > list4 | |
| 4- RP list4: Highest IP@ | |
| Configuration | |
| BSR | set protocols pim rps bootstrap-priority 50 set protocols pim interface all mode sparse |
| RP | set protocols pim rp local address <loopback IP@> set protocols pim rp local group-ranges 224.0.0.0/4 set protocols pim interface all mode sparse |
| all other router | set protocols pim interface all mode sparse |