Thanks Aditya, here's my re-creation of this scenario in my lab... but
it works with the pim/igmp config that i have, and the ospf neighboring
over the l2circuit continues to work. isn't ospf 224 packets "hidden"
inside encapsulation over l2circuit? how would pfe in 5048 use 224
routes seen in inet.0 and inet.1 for l2circuits?
-Aaron
me@lab-5048-2> show route 224/8
inet.0: 846 destinations, 847 routes (846 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
224.0.0.2/32 *[PIM/0] 16:56:50
MultiRecv
[LDP/9] 16:56:47, metric 1
MultiRecv
224.0.0.5/32 *[OSPF/10] 16:56:52, metric 1
MultiRecv
224.0.0.13/32 *[PIM/0] 16:56:50
MultiRecv
224.0.0.22/32 *[IGMP/0] 16:55:29
MultiRecv
inet.1: 6 destinations, 6 routes (6 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
224.0.0.0/24 *[Multicast/180] 16:56:46
MultiDiscard
me@lab-5048-2> show route table l2circuit.0
l2circuit.0: 12 destinations, 12 routes (12 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
...
10.123.12.240:NoCtrlWord:5:2056:Local/96
*[L2CKT/7] 16:55:35, metric2 2
> to 10.123.14.9 via xe-0/0/0.0, Push 64741
10.123.12.240:NoCtrlWord:5:2056:Remote/96
*[LDP/9] 16:55:35
Discard
On 2/2/2024 10:25 AM, Aditya Mahale wrote:
When you enabled pim multicast routes are added to the pfe, this is
mostly breaking ospf over l2 ckt because these packets are mostly now
matching the default 224 routes added to pfe . Without having any show
commands or rtsockmon it’s difficult to debug anything
-Aditya
Google
On Fri, Feb 2, 2024 at 8:21 AM Aaron Gould via juniper-nsp
<[email protected]> wrote:
I tried to recreate the scenario in my lab with no success
21.2R3-S4.8 - in lab - problem not seen
20.2R3-S7.3 - in lab - problem not seen
19.2R3-S6.1 - in lab - problem not seen
18.3R3-S6.1 - in lab - problem not seen
17.4R2-S11 - in lab - problem not seen
17.4R2-S11 - in field - problem seen
again, the problem is, when i enabled this command...
set protocols igmp-snooping vlan vlan100 l2-querier source-address
10.100.4.1
...a customer riding an l2circuit on ge-0/0/2 report to me that their
multicast stops working... ospf goes down and stays in INIT...
when i remove all pim and igmp, then there OSPF neighbors up and
stabilizes
i just don't know how running igmp inside vlan 100 with ports
ge-0/0/4,
5 and 6 would have anything to do with an l2circuit on ge-0/0/2
-Aaron
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--
-Aaron
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