diff options
| author | Anuradha Karuppiah <anuradhak@cumulusnetworks.com> | 2020-11-02 19:53:50 +0100 |
|---|---|---|
| committer | Anuradha Karuppiah <anuradhak@nvidia.com> | 2021-02-19 17:11:15 +0100 |
| commit | 243b74eda653893f4ed7394fa5f7e1bb2ba2bee0 (patch) | |
| tree | 5f91ba6aa2178019990bae3d39ce4d40d040aaa6 /zebra/zebra_evpn_mh.h | |
| parent | zebra: fix problem with SVI IP being advertised even if disabled (diff) | |
| download | frr-243b74eda653893f4ed7394fa5f7e1bb2ba2bee0.tar.xz frr-243b74eda653893f4ed7394fa5f7e1bb2ba2bee0.zip | |
zebra: changes to advertise SVI mac by default if evpn-mh is enabled
Added support for advertising SVI MAC if EVPN-MH is enabled.
In the case of EVPN MH arp replies from an attached server can be sent to
the ES-peer. To prevent flooding of the reply the SVI MAC needs to be
advertised by default.
Note:
advertise-svi-ip could have been used as an alternate way to advertise
SVI MAC. However that config cannot be turned on if SVI IPs are
re-used (which is done to avoid wasting IP addresses in a subnet).
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Diffstat (limited to 'zebra/zebra_evpn_mh.h')
| -rw-r--r-- | zebra/zebra_evpn_mh.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/zebra/zebra_evpn_mh.h b/zebra/zebra_evpn_mh.h index 81ae740d4..6d2143477 100644 --- a/zebra/zebra_evpn_mh.h +++ b/zebra/zebra_evpn_mh.h @@ -180,6 +180,8 @@ struct zebra_evpn_access_bd { struct list *mbr_zifs; /* presence of zevpn activates the EVI on all the ESs in mbr_zifs */ zebra_evpn_t *zevpn; + /* SVI associated with the VLAN */ + struct zebra_if *vlan_zif; }; /* multihoming information stored in zrouter */ @@ -200,6 +202,10 @@ struct zebra_evpn_mh_info { * this flag when the first local ES is detected. */ #define ZEBRA_EVPN_MH_ADV_REACHABLE_NEIGH_ONLY (1 << 2) +/* If EVPN MH is enabled we advertise the SVI MAC address to avoid + * flooding of ARP replies rxed from the multi-homed host + */ +#define ZEBRA_EVPN_MH_ADV_SVI_MAC (1 << 3) /* RB tree of Ethernet segments (used for EVPN-MH) */ struct zebra_es_rb_head es_rb_tree; @@ -285,6 +291,10 @@ static inline bool zebra_evpn_mh_do_adv_reachable_neigh_only(void) return !!(zmh_info->flags & ZEBRA_EVPN_MH_ADV_REACHABLE_NEIGH_ONLY); } +static inline bool zebra_evpn_mh_do_adv_svi_mac(void) +{ + return zmh_info && (zmh_info->flags & ZEBRA_EVPN_MH_ADV_SVI_MAC); +} /*****************************************************************************/ extern esi_t *zero_esi; @@ -357,5 +367,8 @@ extern bool zebra_evpn_is_es_bond_member(struct interface *ifp); extern void zebra_evpn_mh_print(struct vty *vty); extern void zebra_evpn_mh_json(json_object *json); extern void zebra_evpn_l2_nh_show(struct vty *vty, bool uj); +extern void zebra_evpn_acc_bd_svi_set(struct zebra_if *vlan_zif, + struct zebra_if *br_zif, bool is_up); +extern void zebra_evpn_acc_bd_svi_mac_add(struct interface *vlan_if); #endif /* _ZEBRA_EVPN_MH_H */ |