diff options
| author | Anuradha Karuppiah <anuradhak@cumulusnetworks.com> | 2020-05-08 16:41:43 -0700 |
|---|---|---|
| committer | Anuradha Karuppiah <anuradhak@cumulusnetworks.com> | 2020-10-26 10:32:49 -0700 |
| commit | 1103c5c6cd2a2219a2c6b116229a3b96540ed80d (patch) | |
| tree | 704e997ffe864c97f557101e73dc7bf22b018b27 /zebra/zebra_evpn_mh.h | |
| parent | 74e2bd891d85d68250ce368cb538fb5404867238 (diff) | |
zebra: changes to run DF election
1. DF preference is configurable per-ES
!
interface hostbond1
evpn mh es-df-pref 100 >>>>>>>>>>>
evpn mh es-id 1
evpn mh es-sys-mac 00:00:00:00:01:11
!
2. This parameter is sent to BGP and advertised via the ESR.
3. The peer-ESs' DF params are sent to zebra (by BGP) and used
for running the DF election.
4. If the local VTEP becomes non-DF on an ES a block filter is
programmed in the dataplane to drop de-capsulated BUM packets
destined to that ES.
Sample output
=============
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
torm-11# sh evpn es
Type: L local, R remote, N non-DF
ESI Type ES-IF VTEPs
03:00:00:00:00:01:11:00:00:01 LRN hostbond1 27.0.0.16
03:00:00:00:00:01:22:00:00:02 LR hostbond2 27.0.0.16
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
torm-11# sh evpn es 03:00:00:00:00:01:11:00:00:01
ESI: 03:00:00:00:00:01:11:00:00:01
Type: Local,Remote
Interface: hostbond1
State: up
Ready for BGP: yes
VNI Count: 10
MAC Count: 2
DF: status: non-df preference: 100 >>>>>>>>
Nexthop group: 0x2000001
VTEPs:
27.0.0.16 df_alg: preference df_pref: 32767 nh: 0x100000d >>>>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Diffstat (limited to 'zebra/zebra_evpn_mh.h')
| -rw-r--r-- | zebra/zebra_evpn_mh.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/zebra/zebra_evpn_mh.h b/zebra/zebra_evpn_mh.h index 72b7f9b675..a3ed09209d 100644 --- a/zebra/zebra_evpn_mh.h +++ b/zebra/zebra_evpn_mh.h @@ -51,6 +51,10 @@ struct zebra_evpn_es { #define ZEBRA_EVPNES_OPER_UP (1 << 2) /* es->ifp is oper-up */ #define ZEBRA_EVPNES_READY_FOR_BGP (1 << 3) /* ready to be sent to BGP */ #define ZEBRA_EVPNES_NHG_ACTIVE (1 << 4) /* NHG has been installed */ +/* This flag is only applicable to local ESs and signifies that this + * VTEP is not the DF + */ +#define ZEBRA_EVPNES_NON_DF (1 << 5) /* memory used for adding the es to zmh_info->es_rb_tree */ RB_ENTRY(zebra_evpn_es) rb_node; @@ -74,6 +78,11 @@ struct zebra_evpn_es { /* Nexthop group id */ uint32_t nhg_id; + + /* Preference config for BUM-DF election. Sent to BGP and + * advertised via the ESR + */ + uint16_t df_pref; }; RB_HEAD(zebra_es_rb_head, zebra_evpn_es); RB_PROTOTYPE(zebra_es_rb_head, zebra_evpn_es, rb_node, zebra_es_rb_cmp); @@ -115,12 +124,20 @@ struct zebra_evpn_es_vtep { struct zebra_evpn_es *es; /* parent ES */ struct in_addr vtep_ip; + uint32_t flags; + /* Rxed Type-4 route from this VTEP */ +#define ZEBRA_EVPNES_VTEP_RXED_ESR (1 << 0) + /* memory used for adding the entry to es->es_vtep_list */ struct listnode es_listnode; /* MAC nexthop */ uint32_t nh_id; + /* Parameters for DF election */ + uint8_t df_alg; + uint32_t df_pref; + /* XXX - maintain a backpointer to zebra_vtep_t */ }; |