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pimd: force update inherited OIL when vxlan local membership is created

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When local member is added the (*, G) entry may already be in a JOINED
state. In that case the OIL is not updated i.e. pim_channel_add_oif is
not happening for ipmr-lo. Because of this the traffic associated with
the multicast vxlan tunnel is pulled down to the VTEP but not terminated
by the kernel.

This change force updates the OIL anytime ipmr-lo is added or removed
as a local member.

Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
This commit is contained in:
Anuradha Karuppiah 2020-02-06 09:30:48 -08:00
parent 73db824993
commit 664b2a31d6
1 changed files with 13 additions and 0 deletions
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13
pimd/pim_vxlan.c
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@ -533,6 +533,13 @@ static void pim_vxlan_term_mr_oif_add(struct pim_vxlan_sg *vxlan_sg)
if (pim_ifchannel_local_membership_add(vxlan_sg->term_oif,
&vxlan_sg->sg)) {
vxlan_sg->flags |= PIM_VXLAN_SGF_OIF_INSTALLED;
/* update the inherited OIL */
/* XXX - I don't see the inherited OIL updated when a local
* member is added. And that probably needs to be fixed. Till
* that happens we do a force update on the inherited OIL
* here.
*/
pim_upstream_inherited_olist(vxlan_sg->pim, vxlan_sg->up);
} else {
zlog_warn("vxlan SG %s term-oif %s add failed",
vxlan_sg->sg_str, vxlan_sg->term_oif->name);
@ -550,6 +557,12 @@ static void pim_vxlan_term_mr_oif_del(struct pim_vxlan_sg *vxlan_sg)
vxlan_sg->flags &= ~PIM_VXLAN_SGF_OIF_INSTALLED;
pim_ifchannel_local_membership_del(vxlan_sg->term_oif, &vxlan_sg->sg);
/* update the inherited OIL */
/* XXX - I don't see the inherited OIL updated when a local member
* is deleted. And that probably needs to be fixed. Till that happens
* we do a force update on the inherited OIL here.
*/
pim_upstream_inherited_olist(vxlan_sg->pim, vxlan_sg->up);
}
static void pim_vxlan_update_sg_entry_mlag(struct pim_instance *pim,