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pimd: register with MLAG on the first VxLAN SG

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Channel with the MLAG daemon is setup on the first VxLAN BUM MDT or
pim-mlag AA SVI.

This channel is used for -
1. rxing MLAG status status updates (peer state, role etc.)
2. for syncing active-active upstream entries with the peer MLAG
switch.

Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
This commit is contained in:
Anuradha Karuppiah 2020-02-06 09:30:31 -08:00
parent ef011a4287
commit 0309c55d42
2 changed files with 16 additions and 1 deletions
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13
pimd/pim_vxlan.c
View File

@ -660,6 +660,14 @@ static struct pim_vxlan_sg *pim_vxlan_sg_new(struct pim_instance *pim,
vxlan_sg = hash_get(pim->vxlan.sg_hash, vxlan_sg, hash_alloc_intern); vxlan_sg = hash_get(pim->vxlan.sg_hash, vxlan_sg, hash_alloc_intern);
/* we register with the MLAG daemon in the first VxLAN SG and never
* de-register during that life of the pimd
*/
if (pim->vxlan.sg_hash->count == 1) {
vxlan_mlag.flags |= PIM_VXLAN_MLAGF_DO_REG;
pim_mlag_register();
}
return vxlan_sg; return vxlan_sg;
} }
@ -717,6 +725,11 @@ void pim_vxlan_sg_del(struct pim_instance *pim, struct prefix_sg *sg)
} }
/******************************* MLAG handling *******************************/ /******************************* MLAG handling *******************************/
bool pim_vxlan_do_mlag_reg(void)
{
return (vxlan_mlag.flags & PIM_VXLAN_MLAGF_DO_REG);
}
/* The peerlink sub-interface is added as an OIF to the origination-mroute. /* The peerlink sub-interface is added as an OIF to the origination-mroute.
* This is done to send a copy of the multicast-vxlan encapsulated traffic * This is done to send a copy of the multicast-vxlan encapsulated traffic
* to the MLAG peer which may mroute it over the underlay if there are any * to the MLAG peer which may mroute it over the underlay if there are any

4
pimd/pim_vxlan.h
View File

@ -66,7 +66,8 @@ struct pim_vxlan_sg {
enum pim_vxlan_mlag_flags { enum pim_vxlan_mlag_flags {
PIM_VXLAN_MLAGF_NONE = 0, PIM_VXLAN_MLAGF_NONE = 0,
PIM_VXLAN_MLAGF_ENABLED = (1 << 0) PIM_VXLAN_MLAGF_ENABLED = (1 << 0),
PIM_VXLAN_MLAGF_DO_REG = (1 << 1)
}; };
enum pim_vxlan_mlag_role { enum pim_vxlan_mlag_role {
@ -142,5 +143,6 @@ extern void pim_vxlan_mlag_update(bool enable, bool peer_state, uint32_t role,
struct interface *peerlink_rif, struct interface *peerlink_rif,
struct in_addr *reg_addr); struct in_addr *reg_addr);
extern void pim_vxlan_config_write(struct vty *vty, char *spaces, int *writes); extern void pim_vxlan_config_write(struct vty *vty, char *spaces, int *writes);
extern bool pim_vxlan_do_mlag_reg(void);
#endif /* PIM_VXLAN_H */ #endif /* PIM_VXLAN_H */