10-08-2018 01:29 AM - edited 03-05-2019 10:58 AM
Hi,
I am using BSR for selecting auto RP and distribute on GNS3. I choose the O1 as RP and B1 as the backup RP. The BSR and RP information distribute between O1, A1, and B1 but other routers (B3, O3, A3, and A4) could not get this information. I could not find the reason!!!
I wrote "ip pim sparse-mode" command for all related interfaces.
I wrote "ip multicast-routing" command for all routers.
All static routing things are OK. All devices can ping the Loopback interfaces.
B1:
ip pim bsr-candidate Loopback0 1
ip pim rp-candidate Loopback0 priority 20
O1:
ip pim bsr-candidate Loopback0 1
ip pim rp-candidate Loopback0 priority 10
Note: I am using HSRP with second routers for redundancy. Example O1-O2.
Solved! Go to Solution.
10-09-2018 08:06 AM
Hello
@burhan.agir wrote:
Hello,
It's done! But this IP address is physical. When the router 1 goes down I could not reach this IP address. Should I write another static route with a higher preference for router2 physical IP address?
The issue is the vip address of the HRSP, the join request wont be seen on coming from a unknown source as its doesnt have a pim peer with it.
You can use a static mroute but I would suggest use a IGP and advertise your routes dynamically and also try applying pim redundancy to the hrsp group
int x.x
standby X name pim-failover
ip pim redundancy pim-failover dr priority xx
10-09-2018 12:53 PM
Hello,
on a side note, I don't think that BSR works in an HSRP setup such as the one that you have. The reason being that the PIM Register tunnels are only created on the RP/BSR, and when the failover occurs, they are not replicated at the other HSRP router.
I recreated your setup in GNS3, but I couldn't get it to work either...
10-09-2018 02:37 PM - edited 10-09-2018 02:48 PM
Hello
@Georg Pauwen did you apply a static mroute towards the physical pim peer of the edge rtr as the default static route on the edge rtr is pointing the the vip address of the Hrsp and this address is not pim peered as such the mc join requests from the edge rtr will get ignored
When an static mroute was applied @burhan.agir stated it began to work - so going forward the resolution I suggested was to try and use the hrsp pim redundancy feature instead if a static mroute
10-10-2018 01:09 AM
Actually, I did apply the mroute, but to the RP address of the e.g. B1 router...
Can you post the final full config ? I could never get the standby or the x3 routers to display the rp mappings correctly...
Either way, good stuff that it is working !
10-10-2018 01:44 AM
10-10-2018 01:46 AM
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