diff options
| author | saravanank <saravanank@vmware.com> | 2019-05-20 10:01:34 -0700 |
|---|---|---|
| committer | saravanank <saravanank@vmware.com> | 2019-06-12 19:07:13 -0700 |
| commit | 50d06d9e561affb999a1a7c893e260f50d4fe1c6 (patch) | |
| tree | 16414330039eebb90eec7457b03cecdc44277549 /pimd/pim_zebra.c | |
| parent | 8b40649e0d728ab8b74a8c9dc2434f638e06b36c (diff) | |
pimd: fix DR at LHR scenario where non DR is connected to RP
In Scenario where receiver is present in a subnet where 2 or more pim mrouters.
When IGMP query received on a DR interface and RP is reachable through non DR.
Currently we are blocking to create upstream where iif == oif. So pim join
not generated towards RP. We have to allow the DR router in the network to create an upstream.
Signed-off-by: Saravanan K <saravanank@vmware.com>
Diffstat (limited to 'pimd/pim_zebra.c')
| -rw-r--r-- | pimd/pim_zebra.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/pimd/pim_zebra.c b/pimd/pim_zebra.c index 25ac307ac4..653916dead 100644 --- a/pimd/pim_zebra.c +++ b/pimd/pim_zebra.c @@ -1043,10 +1043,12 @@ void igmp_source_forward_start(struct pim_instance *pim, * Protect IGMP against adding looped MFC * entries created by both source and receiver * attached to the same interface. See TODO - * T22. + * T22. Block only when the intf is non DR + * DR must create upstream. */ - if (input_iface_vif_index == - pim_oif->mroute_vif_index) { + if ((input_iface_vif_index == + pim_oif->mroute_vif_index) && + !(PIM_I_am_DR(pim_oif))) { /* ignore request for looped MFC entry */ if (PIM_DEBUG_IGMP_TRACE) { |