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bgpd: add cli for configuring the EVI limit per-ES-frag

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The EAD-per-ES route can be fragmented to fit the EVIs on the switch. This
command allows the EVI limit to be configured -

!
router bgp 5556
 !
 address-family l2vpn evpn
  ead-es-frag evi-limit 200
 exit-address-family
 !
!

Signed-off-by: Anuradha Karuppiah <anuradhak@nvidia.com>
This commit is contained in:
Anuradha Karuppiah 2021-08-12 12:08:14 -07:00 committed by Donald Sharp
parent 7b0db0e43f
commit bb37eabe24
3 changed files with 26 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
bgpd/bgp_evpn_mh.c
View File

@ -1796,8 +1796,8 @@ bgp_evpn_es_find_frag_with_space(struct bgp_evpn_es *es)
struct bgp_evpn_es_frag *es_frag; struct bgp_evpn_es_frag *es_frag;
for (ALL_LIST_ELEMENTS_RO(es->es_frag_list, node, es_frag)) { for (ALL_LIST_ELEMENTS_RO(es->es_frag_list, node, es_frag)) {
if (listcount(es_frag->es_evi_frag_list) if (listcount(es_frag->es_evi_frag_list) <
< BGP_EVPN_MAX_EVI_PER_ES_FRAG) bgp_mh_info->evi_per_es_frag)
return es_frag; return es_frag;
} }
@ -4989,6 +4989,7 @@ void bgp_evpn_mh_init(void)
bgp_mh_info->host_routes_use_l3nhg = BGP_EVPN_MH_USE_ES_L3NHG_DEF; bgp_mh_info->host_routes_use_l3nhg = BGP_EVPN_MH_USE_ES_L3NHG_DEF;
bgp_mh_info->suppress_l3_ecomm_on_inactive_es = true; bgp_mh_info->suppress_l3_ecomm_on_inactive_es = true;
bgp_mh_info->bgp_evpn_nh_setup = true; bgp_mh_info->bgp_evpn_nh_setup = true;
bgp_mh_info->evi_per_es_frag = BGP_EVPN_MAX_EVI_PER_ES_FRAG;
memset(&zero_esi_buf, 0, sizeof(esi_t)); memset(&zero_esi_buf, 0, sizeof(esi_t));
} }

5
bgpd/bgp_evpn_mh.h
View File

@ -341,6 +341,11 @@ struct bgp_evpn_mh_info {
* sending the ead-per-es route instead of the L2-VNI(s) RTs * sending the ead-per-es route instead of the L2-VNI(s) RTs
*/ */
struct list *ead_es_export_rtl; struct list *ead_es_export_rtl;
/* Number of EVIs in an ES fragment - used of EAD-per-ES route
* construction
*/
uint32_t evi_per_es_frag;
}; };
/****************************************************************************/ /****************************************************************************/

18
bgpd/bgp_evpn_vty.c
View File

@ -5992,6 +5992,19 @@ DEFUN (no_bgp_evpn_vrf_rt,
return CMD_SUCCESS; return CMD_SUCCESS;
} }
DEFPY(bgp_evpn_ead_ess_frag_evi_limit, bgp_evpn_ead_es_frag_evi_limit_cmd,
"[no$no] ead-es-frag evi-limit (1-1000)$limit",
NO_STR
"EAD ES fragment config\n"
"EVIs per-fragment\n"
"limit\n")
{
bgp_mh_info->evi_per_es_frag =
no ? BGP_EVPN_MAX_EVI_PER_ES_FRAG : limit;
return CMD_SUCCESS;
}
DEFUN(bgp_evpn_ead_es_rt, bgp_evpn_ead_es_rt_cmd, DEFUN(bgp_evpn_ead_es_rt, bgp_evpn_ead_es_rt_cmd,
"ead-es-route-target export RT", "ead-es-route-target export RT",
"EAD ES Route Target\n" "EAD ES Route Target\n"
@ -6326,6 +6339,10 @@ void bgp_config_write_evpn_info(struct vty *vty, struct bgp *bgp, afi_t afi,
if (bgp->resolve_overlay_index) if (bgp->resolve_overlay_index)
vty_out(vty, " enable-resolve-overlay-index\n"); vty_out(vty, " enable-resolve-overlay-index\n");
if (bgp_mh_info->evi_per_es_frag != BGP_EVPN_MAX_EVI_PER_ES_FRAG)
vty_out(vty, " ead-es-frag evi-limit %u\n",
bgp_mh_info->evi_per_es_frag);
if (bgp_mh_info->host_routes_use_l3nhg != if (bgp_mh_info->host_routes_use_l3nhg !=
BGP_EVPN_MH_USE_ES_L3NHG_DEF) { BGP_EVPN_MH_USE_ES_L3NHG_DEF) {
if (bgp_mh_info->host_routes_use_l3nhg) if (bgp_mh_info->host_routes_use_l3nhg)
@ -6593,6 +6610,7 @@ void bgp_ethernetvpn_init(void)
install_element(BGP_EVPN_NODE, &no_bgp_evpn_vrf_rt_cmd); install_element(BGP_EVPN_NODE, &no_bgp_evpn_vrf_rt_cmd);
install_element(BGP_EVPN_NODE, &bgp_evpn_ead_es_rt_cmd); install_element(BGP_EVPN_NODE, &bgp_evpn_ead_es_rt_cmd);
install_element(BGP_EVPN_NODE, &no_bgp_evpn_ead_es_rt_cmd); install_element(BGP_EVPN_NODE, &no_bgp_evpn_ead_es_rt_cmd);
install_element(BGP_EVPN_NODE, &bgp_evpn_ead_es_frag_evi_limit_cmd);
install_element(BGP_EVPN_VNI_NODE, &bgp_evpn_advertise_svi_ip_vni_cmd); install_element(BGP_EVPN_VNI_NODE, &bgp_evpn_advertise_svi_ip_vni_cmd);
install_element(BGP_EVPN_VNI_NODE, install_element(BGP_EVPN_VNI_NODE,
&bgp_evpn_advertise_default_gw_vni_cmd); &bgp_evpn_advertise_default_gw_vni_cmd);