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Merge pull request #13750 from louis-6wind/fix-no-retain-memory-usage

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bgpd: fix memory usage of vpn no retain
This commit is contained in:
Russ White 2023-06-20 09:19:50 -04:00 committed by GitHub
commit 554c2e0350
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GPG Key ID: 4AEE18F83AFDEB23
18 changed files with 1275 additions and 215 deletions
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119
bgpd/bgp_mplsvpn.c
View File

@ -2120,7 +2120,7 @@ static struct bgp *bgp_lookup_by_rd(struct bgp_path_info *bpi,
return NULL;
}
static bool vpn_leak_to_vrf_update_onevrf(struct bgp *to_bgp, /* to */
static void vpn_leak_to_vrf_update_onevrf(struct bgp *to_bgp, /* to */
struct bgp *from_bgp, /* from */
struct bgp_path_info *path_vpn,
struct prefix_rd *prd)
@ -2150,7 +2150,7 @@ static bool vpn_leak_to_vrf_update_onevrf(struct bgp *to_bgp, /* to */
"%s: from vpn (%s) to vrf (%s), skipping: %s",
__func__, from_bgp->name_pretty,
to_bgp->name_pretty, debugmsg);
return false;
return;
}
/*
@ -2177,7 +2177,7 @@ static bool vpn_leak_to_vrf_update_onevrf(struct bgp *to_bgp, /* to */
zlog_debug(
"from vpn (%s) to vrf (%s), skipping after no intersection of route targets",
from_bgp->name_pretty, to_bgp->name_pretty);
return false;
return;
}
rd_buf[0] = '\0';
@ -2194,7 +2194,7 @@ static bool vpn_leak_to_vrf_update_onevrf(struct bgp *to_bgp, /* to */
zlog_debug(
"%s: skipping import, match RD (%s) of src VRF (%s) and the prefix (%pFX)",
__func__, rd_buf, to_bgp->name_pretty, p);
return false;
return;
}
if (debug)
@ -2305,7 +2305,7 @@ static bool vpn_leak_to_vrf_update_onevrf(struct bgp *to_bgp, /* to */
to_bgp->vpn_policy[afi]
.rmap[BGP_VPN_POLICY_DIR_FROMVPN]
->name);
return false;
return;
}
/*
* if route-map changed nexthop, don't nexthop-self on output
@ -2367,17 +2367,60 @@ static bool vpn_leak_to_vrf_update_onevrf(struct bgp *to_bgp, /* to */
num_labels, src_vrf, &nexthop_orig, nexthop_self_flag,
debug))
bgp_dest_unlock_node(bn);
}
bool vpn_leak_to_vrf_no_retain_filter_check(struct bgp *from_bgp,
struct attr *attr, afi_t afi)
{
struct ecommunity *ecom_route_target = bgp_attr_get_ecommunity(attr);
int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF);
struct listnode *node;
const char *debugmsg;
struct bgp *to_bgp;
/* Loop over BGP instances */
for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, to_bgp)) {
if (!vpn_leak_from_vpn_active(to_bgp, afi, &debugmsg)) {
if (debug)
zlog_debug(
"%s: from vpn (%s) to vrf (%s) afi %s, skipping: %s",
__func__, from_bgp->name_pretty,
to_bgp->name_pretty, afi2str(afi),
debugmsg);
continue;
}
/* Check for intersection of route targets */
if (!ecommunity_include(
to_bgp->vpn_policy[afi]
.rtlist[BGP_VPN_POLICY_DIR_FROMVPN],
ecom_route_target)) {
if (debug)
zlog_debug(
"%s: from vpn (%s) to vrf (%s) afi %s %s, skipping after no intersection of route targets",
__func__, from_bgp->name_pretty,
to_bgp->name_pretty, afi2str(afi),
ecommunity_str(ecom_route_target));
continue;
}
return false;
}
if (debug)
zlog_debug(
"%s: from vpn (%s) afi %s %s, no import - must be filtered",
__func__, from_bgp->name_pretty, afi2str(afi),
ecommunity_str(ecom_route_target));
return true;
}
bool vpn_leak_to_vrf_update(struct bgp *from_bgp,
void vpn_leak_to_vrf_update(struct bgp *from_bgp,
struct bgp_path_info *path_vpn,
struct prefix_rd *prd)
{
struct listnode *mnode, *mnnode;
struct bgp *bgp;
bool leak_success = false;
int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF);
@ -2389,11 +2432,10 @@ bool vpn_leak_to_vrf_update(struct bgp *from_bgp,
if (!path_vpn->extra
|| path_vpn->extra->bgp_orig != bgp) { /* no loop */
leak_success |= vpn_leak_to_vrf_update_onevrf(
bgp, from_bgp, path_vpn, prd);
vpn_leak_to_vrf_update_onevrf(bgp, from_bgp, path_vpn,
prd);
}
}
return leak_success;
}
void vpn_leak_to_vrf_withdraw(struct bgp_path_info *path_vpn)
@ -2513,6 +2555,51 @@ void vpn_leak_to_vrf_withdraw_all(struct bgp *to_bgp, afi_t afi)
}
}
void vpn_leak_no_retain(struct bgp *to_bgp, struct bgp *vpn_from, afi_t afi)
{
struct bgp_dest *pdest;
safi_t safi = SAFI_MPLS_VPN;
assert(vpn_from);
/*
* Walk vpn table
*/
for (pdest = bgp_table_top(vpn_from->rib[afi][safi]); pdest;
pdest = bgp_route_next(pdest)) {
struct bgp_table *table;
struct bgp_dest *bn;
struct bgp_path_info *bpi;
/* This is the per-RD table of prefixes */
table = bgp_dest_get_bgp_table_info(pdest);
if (!table)
continue;
for (bn = bgp_table_top(table); bn; bn = bgp_route_next(bn)) {
for (bpi = bgp_dest_get_bgp_path_info(bn); bpi;
bpi = bpi->next) {
if (bpi->extra &&
bpi->extra->bgp_orig == to_bgp)
continue;
if (bpi->sub_type != BGP_ROUTE_NORMAL)
continue;
if (!vpn_leak_to_vrf_no_retain_filter_check(
vpn_from, bpi->attr, afi))
/* do not filter */
continue;
bgp_unlink_nexthop(bpi);
bgp_rib_remove(bn, bpi, bpi->peer, afi, safi);
}
}
}
}
void vpn_leak_to_vrf_update_all(struct bgp *to_bgp, struct bgp *vpn_from,
afi_t afi)
{
@ -3717,6 +3804,7 @@ void vpn_leak_postchange_all(void)
*/
void bgp_vpn_leak_unimport(struct bgp *from_bgp)
{
struct bgp *bgp_default = bgp_get_default();
struct bgp *to_bgp;
const char *tmp_name;
char *vname;
@ -3795,6 +3883,17 @@ void bgp_vpn_leak_unimport(struct bgp *from_bgp)
}
}
}
if (bgp_default &&
!CHECK_FLAG(bgp_default->af_flags[afi][SAFI_MPLS_VPN],
BGP_VPNVX_RETAIN_ROUTE_TARGET_ALL)) {
/* 'from_bgp' instance will be deleted
* so force to unset importation to update VPN labels
*/
UNSET_FLAG(from_bgp->af_flags[afi][SAFI_UNICAST],
BGP_CONFIG_MPLSVPN_TO_VRF_IMPORT);
vpn_leak_no_retain(from_bgp, bgp_default, afi);
}
}
return;
}

9
bgpd/bgp_mplsvpn.h
View File

@ -56,10 +56,17 @@ extern void vpn_leak_from_vrf_update_all(struct bgp *to_bgp,
extern void vpn_leak_to_vrf_withdraw_all(struct bgp *to_bgp, afi_t afi);
extern void vpn_leak_no_retain(struct bgp *to_bgp, struct bgp *vpn_from,
afi_t afi);
extern void vpn_leak_to_vrf_update_all(struct bgp *to_bgp, struct bgp *from_bgp,
afi_t afi);
extern bool vpn_leak_to_vrf_update(struct bgp *from_bgp,
extern bool vpn_leak_to_vrf_no_retain_filter_check(struct bgp *from_bgp,
struct attr *attr,
afi_t afi);
extern void vpn_leak_to_vrf_update(struct bgp *from_bgp,
struct bgp_path_info *path_vpn,
struct prefix_rd *prd);

31
bgpd/bgp_route.c
View File

@ -4152,7 +4152,6 @@ void bgp_update(struct peer *peer, const struct prefix *p, uint32_t addpath_id,
afi_t nh_afi;
bool force_evpn_import = false;
safi_t orig_safi = safi;
bool leak_success = true;
int allowas_in = 0;
if (frrtrace_enabled(frr_bgp, process_update)) {
@ -4296,6 +4295,16 @@ void bgp_update(struct peer *peer, const struct prefix *p, uint32_t addpath_id,
goto filtered;
}
if ((afi == AFI_IP || afi == AFI_IP6) && safi == SAFI_MPLS_VPN &&
bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT &&
!CHECK_FLAG(bgp->af_flags[afi][safi],
BGP_VPNVX_RETAIN_ROUTE_TARGET_ALL) &&
vpn_leak_to_vrf_no_retain_filter_check(bgp, attr, afi)) {
reason =
"no import. Filtered by no bgp retain route-target all";
goto filtered;
}
/* If the route has Node Target Extended Communities, check
* if it's allowed to be installed locally.
*/
@ -4848,7 +4857,7 @@ void bgp_update(struct peer *peer, const struct prefix *p, uint32_t addpath_id,
}
if ((SAFI_MPLS_VPN == safi)
&& (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
leak_success = vpn_leak_to_vrf_update(bgp, pi, prd);
vpn_leak_to_vrf_update(bgp, pi, prd);
}
#ifdef ENABLE_BGP_VNC
@ -4863,13 +4872,6 @@ void bgp_update(struct peer *peer, const struct prefix *p, uint32_t addpath_id,
type, sub_type, NULL);
}
#endif
if ((safi == SAFI_MPLS_VPN) &&
!CHECK_FLAG(bgp->af_flags[afi][safi],
BGP_VPNVX_RETAIN_ROUTE_TARGET_ALL) &&
!leak_success) {
bgp_unlink_nexthop(pi);
bgp_path_info_delete(dest, pi);
}
return;
} // End of implicit withdraw
@ -5020,7 +5022,7 @@ void bgp_update(struct peer *peer, const struct prefix *p, uint32_t addpath_id,
}
if ((SAFI_MPLS_VPN == safi)
&& (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT)) {
leak_success = vpn_leak_to_vrf_update(bgp, new, prd);
vpn_leak_to_vrf_update(bgp, new, prd);
}
#ifdef ENABLE_BGP_VNC
if (SAFI_MPLS_VPN == safi) {
@ -5034,13 +5036,6 @@ void bgp_update(struct peer *peer, const struct prefix *p, uint32_t addpath_id,
sub_type, NULL);
}
#endif
if ((safi == SAFI_MPLS_VPN) &&
!CHECK_FLAG(bgp->af_flags[afi][safi],
BGP_VPNVX_RETAIN_ROUTE_TARGET_ALL) &&
!leak_success) {
bgp_unlink_nexthop(new);
bgp_path_info_delete(dest, new);
}
return;
@ -11932,7 +11927,7 @@ int bgp_show_table_rd(struct vty *vty, struct bgp *bgp, safi_t safi,
"\nDisplayed %ld routes and %ld total paths\n",
output_cum, total_cum);
} else {
if (use_json && output_cum == 0)
if (use_json && output_cum == 0 && json_header_depth == 0)
vty_out(vty, "{}\n");
}
return CMD_SUCCESS;

9
bgpd/bgp_vty.c
View File

@ -9954,6 +9954,7 @@ DEFPY (bgp_imexport_vpn,
bool yes = true;
int flag;
enum vpn_policy_direction dir;
struct bgp *bgp_default = bgp_get_default();
if (argv_find(argv, argc, "no", &idx))
yes = false;
@ -9989,14 +9990,18 @@ DEFPY (bgp_imexport_vpn,
SET_FLAG(bgp->af_flags[afi][safi], flag);
if (!previous_state) {
/* trigger export current vrf */
vpn_leak_postchange(dir, afi, bgp_get_default(), bgp);
vpn_leak_postchange(dir, afi, bgp_default, bgp);
}
} else {
if (previous_state) {
/* trigger un-export current vrf */
vpn_leak_prechange(dir, afi, bgp_get_default(), bgp);
vpn_leak_prechange(dir, afi, bgp_default, bgp);
}
UNSET_FLAG(bgp->af_flags[afi][safi], flag);
if (previous_state && bgp_default &&
!CHECK_FLAG(bgp_default->af_flags[afi][SAFI_MPLS_VPN],
BGP_VPNVX_RETAIN_ROUTE_TARGET_ALL))
vpn_leak_no_retain(bgp, bgp_default, afi);
}
hook_call(bgp_snmp_init_stats, bgp);

34
tests/topotests/bgp_vpnv4_noretain/r1/bgpd.conf
View File

@ -1,8 +1,12 @@
router bgp 65500
bgp router-id 1.1.1.1
bgp router-id 192.0.2.1
neighbor 10.125.0.2 remote-as 65500
address-family ipv4 unicast
no neighbor 10.125.0.2 activate
label vpn export 100
rd vpn export 192.0.2.1:0
rt vpn import 192.0.2.2:400
import vpn
exit-address-family
address-family ipv4 vpn
neighbor 10.125.0.2 activate
@ -10,15 +14,33 @@ router bgp 65500
exit-address-family
!
router bgp 65500 vrf vrf1
bgp router-id 1.1.1.1
bgp router-id 192.0.2.1
address-family ipv4 unicast
redistribute connected
label vpn export 101
rd vpn export 444:1
rt vpn import 51:100 52:100
rt vpn export 51:100
rd vpn export 192.0.2.1:1
rt vpn import 192.0.2.2:100
rt vpn export 192.0.2.1:100
export vpn
import vpn
exit-address-family
!
router bgp 65500 vrf vrf3
bgp router-id 192.0.2.1
address-family ipv4 unicast
redistribute connected
label vpn export 103
rd vpn export 192.0.2.1:3
rt vpn export 192.0.2.1:300
export vpn
exit-address-family
!
router bgp 65500 vrf vrf4
bgp router-id 192.0.2.1
address-family ipv4 unicast
label vpn export 104
rd vpn export 192.0.2.1:4
rt vpn import 192.0.2.1:300
import vpn
exit-address-family
!

68
tests/topotests/bgp_vpnv4_noretain/r1/ipv4_vpn_routes.json
View File

@ -1,68 +0,0 @@
{
"vrfId":0,
"vrfName":"default",
"routerId":"1.1.1.1",
"defaultLocPrf":100,
"localAS":65500,
"routes":{
"routeDistinguishers":{
"444:1":{
"10.201.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"external",
"prefix":"10.201.0.0",
"prefixLen":24,
"network":"10.201.0.0\/24",
"metric":0,
"weight":32768,
"peerId":"(unspec)",
"path":"",
"origin":"incomplete",
"announceNexthopSelf":true,
"nhVrfName":"vrf1",
"nexthops":[
{
"ip":"0.0.0.0",
"hostname":"r1",
"afi":"ipv4",
"used":true
}
]
}
]
},
"444:2":{
"10.200.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.200.0.0",
"prefixLen":24,
"network":"10.200.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,
"peerId":"10.125.0.2",
"path":"",
"origin":"incomplete",
"nexthops":[
{
"ip":"10.125.0.2",
"hostname":"r2",
"afi":"ipv4",
"used":true
}
]
}
]
},
"444:3":{
}
}
}
}

175
tests/topotests/bgp_vpnv4_noretain/r1/ipv4_vpn_routes_all.json Normal file
View File

@ -0,0 +1,175 @@
{
"vrfId":0,
"vrfName":"default",
"routerId":"192.0.2.1",
"defaultLocPrf":100,
"localAS":65500,
"routes":{
"routeDistinguishers":{
"192.0.2.1:1":{
"10.101.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"external",
"prefix":"10.101.0.0",
"prefixLen":24,
"network":"10.101.0.0\/24",
"metric":0,
"weight":32768,
"peerId":"(unspec)",
"path":"",
"origin":"incomplete",
"announceNexthopSelf":true,
"nhVrfName":"vrf1",
"nexthops":[
{
"ip":"0.0.0.0",
"hostname":"r1",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.1:3":{
"10.103.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"external",
"prefix":"10.103.0.0",
"prefixLen":24,
"network":"10.103.0.0\/24",
"metric":0,
"weight":32768,
"peerId":"(unspec)",
"path":"",
"origin":"incomplete",
"announceNexthopSelf":true,
"nhVrfName":"vrf3",
"nexthops":[
{
"ip":"0.0.0.0",
"hostname":"r1",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.2:1":{
"10.201.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.201.0.0",
"prefixLen":24,
"network":"10.201.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,
"peerId":"10.125.0.2",
"path":"",
"origin":"incomplete",
"nexthops":[
{
"ip":"10.125.0.2",
"hostname":"r2",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.2:2":{
"10.202.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.202.0.0",
"prefixLen":24,
"network":"10.202.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,
"peerId":"10.125.0.2",
"path":"",
"origin":"incomplete",
"nexthops":[
{
"ip":"10.125.0.2",
"hostname":"r2",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.2:3":{
"10.203.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.203.0.0",
"prefixLen":24,
"network":"10.203.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,
"peerId":"10.125.0.2",
"path":"",
"origin":"incomplete",
"nexthops":[
{
"ip":"10.125.0.2",
"hostname":"r2",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.2:4":{
"10.204.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.204.0.0",
"prefixLen":24,
"network":"10.204.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,
"peerId":"10.125.0.2",
"path":"",
"origin":"incomplete",
"nexthops":[
{
"ip":"10.125.0.2",
"hostname":"r2",
"afi":"ipv4",
"used":true
}
]
}
]
}
}
}
}

54
tests/topotests/bgp_vpnv4_noretain/r1/ipv4_vpn_routes_unfiltered.json → tests/topotests/bgp_vpnv4_noretain/r1/ipv4_vpn_routes_no_retain_init.json
View File

@ -1,21 +1,21 @@
{
"vrfId":0,
"vrfName":"default",
"routerId":"1.1.1.1",
"routerId":"192.0.2.1",
"defaultLocPrf":100,
"localAS":65500,
"routes":{
"routeDistinguishers":{
"444:1":{
"10.201.0.0/24":[
"192.0.2.1:1":{
"10.101.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"external",
"prefix":"10.201.0.0",
"prefix":"10.101.0.0",
"prefixLen":24,
"network":"10.201.0.0\/24",
"network":"10.101.0.0\/24",
"metric":0,
"weight":32768,
"peerId":"(unspec)",
@ -34,16 +34,44 @@
}
]
},
"444:2":{
"10.200.0.0/24":[
"192.0.2.1:3":{
"10.103.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"external",
"prefix":"10.103.0.0",
"prefixLen":24,
"network":"10.103.0.0\/24",
"metric":0,
"weight":32768,
"peerId":"(unspec)",
"path":"",
"origin":"incomplete",
"announceNexthopSelf":true,
"nhVrfName":"vrf3",
"nexthops":[
{
"ip":"0.0.0.0",
"hostname":"r1",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.2:1":{
"10.201.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.200.0.0",
"prefix":"10.201.0.0",
"prefixLen":24,
"network":"10.200.0.0\/24",
"network":"10.201.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,
@ -61,16 +89,16 @@
}
]
},
"444:3":{
"10.210.0.0/24":[
"192.0.2.2:4":{
"10.204.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.210.0.0",
"prefix":"10.204.0.0",
"prefixLen":24,
"network":"10.210.0.0\/24",
"network":"10.204.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,

148
tests/topotests/bgp_vpnv4_noretain/r1/ipv4_vpn_routes_no_retain_init_plus_r2_vrf2.json Normal file
View File

@ -0,0 +1,148 @@
{
"vrfId":0,
"vrfName":"default",
"routerId":"192.0.2.1",
"defaultLocPrf":100,
"localAS":65500,
"routes":{
"routeDistinguishers":{
"192.0.2.1:1":{
"10.101.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"external",
"prefix":"10.101.0.0",
"prefixLen":24,
"network":"10.101.0.0\/24",
"metric":0,
"weight":32768,
"peerId":"(unspec)",
"path":"",
"origin":"incomplete",
"announceNexthopSelf":true,
"nhVrfName":"vrf1",
"nexthops":[
{
"ip":"0.0.0.0",
"hostname":"r1",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.1:3":{
"10.103.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"external",
"prefix":"10.103.0.0",
"prefixLen":24,
"network":"10.103.0.0\/24",
"metric":0,
"weight":32768,
"peerId":"(unspec)",
"path":"",
"origin":"incomplete",
"announceNexthopSelf":true,
"nhVrfName":"vrf3",
"nexthops":[
{
"ip":"0.0.0.0",
"hostname":"r1",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.2:1":{
"10.201.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.201.0.0",
"prefixLen":24,
"network":"10.201.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,
"peerId":"10.125.0.2",
"path":"",
"origin":"incomplete",
"nexthops":[
{
"ip":"10.125.0.2",
"hostname":"r2",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.2:2":{
"10.202.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.202.0.0",
"prefixLen":24,
"network":"10.202.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,
"peerId":"10.125.0.2",
"path":"",
"origin":"incomplete",
"nexthops":[
{
"ip":"10.125.0.2",
"hostname":"r2",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.2:4":{
"10.204.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.204.0.0",
"prefixLen":24,
"network":"10.204.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,
"peerId":"10.125.0.2",
"path":"",
"origin":"incomplete",
"nexthops":[
{
"ip":"10.125.0.2",
"hostname":"r2",
"afi":"ipv4",
"used":true
}
]
}
]
}
}
}
}

148
tests/topotests/bgp_vpnv4_noretain/r1/ipv4_vpn_routes_no_retain_init_plus_r2_vrf3.json Normal file
View File

@ -0,0 +1,148 @@
{
"vrfId":0,
"vrfName":"default",
"routerId":"192.0.2.1",
"defaultLocPrf":100,
"localAS":65500,
"routes":{
"routeDistinguishers":{
"192.0.2.1:1":{
"10.101.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"external",
"prefix":"10.101.0.0",
"prefixLen":24,
"network":"10.101.0.0\/24",
"metric":0,
"weight":32768,
"peerId":"(unspec)",
"path":"",
"origin":"incomplete",
"announceNexthopSelf":true,
"nhVrfName":"vrf1",
"nexthops":[
{
"ip":"0.0.0.0",
"hostname":"r1",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.1:3":{
"10.103.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"external",
"prefix":"10.103.0.0",
"prefixLen":24,
"network":"10.103.0.0\/24",
"metric":0,
"weight":32768,
"peerId":"(unspec)",
"path":"",
"origin":"incomplete",
"announceNexthopSelf":true,
"nhVrfName":"vrf3",
"nexthops":[
{
"ip":"0.0.0.0",
"hostname":"r1",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.2:1":{
"10.201.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.201.0.0",
"prefixLen":24,
"network":"10.201.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,
"peerId":"10.125.0.2",
"path":"",
"origin":"incomplete",
"nexthops":[
{
"ip":"10.125.0.2",
"hostname":"r2",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.2:3":{
"10.203.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.203.0.0",
"prefixLen":24,
"network":"10.203.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,
"peerId":"10.125.0.2",
"path":"",
"origin":"incomplete",
"nexthops":[
{
"ip":"10.125.0.2",
"hostname":"r2",
"afi":"ipv4",
"used":true
}
]
}
]
},
"192.0.2.2:4":{
"10.204.0.0/24":[
{
"valid":true,
"bestpath":true,
"selectionReason":"First path received",
"pathFrom":"internal",
"prefix":"10.204.0.0",
"prefixLen":24,
"network":"10.204.0.0\/24",
"metric":0,
"locPrf":100,
"weight":0,
"peerId":"10.125.0.2",
"path":"",
"origin":"incomplete",
"nexthops":[
{
"ip":"10.125.0.2",
"hostname":"r2",
"afi":"ipv4",
"used":true
}
]
}
]
}
}
}
}

2
tests/topotests/bgp_vpnv4_noretain/r1/isisd.conf
View File

@ -10,5 +10,5 @@ router isis 1
is-type level-1
net 49.0002.0000.1994.00
segment-routing on
segment-routing prefix 1.1.1.1/32 index 11
segment-routing prefix 192.0.2.1/32 index 11
!

11
tests/topotests/bgp_vpnv4_noretain/r1/zebra.conf
View File

@ -1,13 +1,16 @@
log stdout
interface lo
ip address 1.1.1.1/32
ip address 192.0.2.1/32
!
interface r1-gre0
ip address 192.168.0.1/24
!
interface r1-eth1 vrf vrf1
ip address 10.201.0.1/24
!
interface r1-eth0
ip address 10.125.0.1/24
!
interface r1-eth1 vrf vrf1
ip address 10.101.0.1/24
!
interface r1-eth3 vrf vrf3
ip address 10.103.0.1/24
!

43
tests/topotests/bgp_vpnv4_noretain/r2/bgpd.conf
View File

@ -1,35 +1,54 @@
router bgp 65500
bgp router-id 2.2.2.2
bgp router-id 192.0.2.2
neighbor 10.125.0.1 remote-as 65500
address-family ipv4 unicast
no neighbor 10.125.0.1 activate
exit-address-family
address-family ipv4 vpn
neighbor 10.125.0.1 activate
no bgp retain route-target all
exit-address-family
!
router bgp 65500 vrf vrf1
bgp router-id 2.2.2.2
bgp router-id 192.0.2.2
address-family ipv4 unicast
redistribute connected
label vpn export 102
rd vpn export 444:2
rt vpn import 53:100 52:100 51:100
rt vpn export 52:100
label vpn export 201
rd vpn export 192.0.2.2:1
rt vpn import 192.0.2.1:100 192.0.2.2:100 192.0.2.2:200
rt vpn export 192.0.2.2:100
export vpn
import vpn
exit-address-family
!
router bgp 65500 vrf vrf2
bgp router-id 2.2.2.2
bgp router-id 192.0.2.2
address-family ipv4 unicast
redistribute connected
label vpn export 102
rd vpn export 444:3
rt vpn both 53:100 52:100 51:100
rt vpn both 53:100
label vpn export 202
rd vpn export 192.0.2.2:2
rt vpn import 192.0.2.1:100 192.0.2.2:100 192.0.2.2:200
rt vpn export 192.0.2.2:200
export vpn
import vpn
exit-address-family
!
router bgp 65500 vrf vrf3
bgp router-id 192.0.2.2
address-family ipv4 unicast
redistribute connected
label vpn export 203
rd vpn export 192.0.2.2:3
rt vpn export 192.0.2.2:300
export vpn
exit-address-family
!
router bgp 65500 vrf vrf4
bgp router-id 192.0.2.2
address-family ipv4 unicast
redistribute connected
label vpn export 204
rd vpn export 192.0.2.2:4
rt vpn export 192.0.2.2:400
export vpn
exit-address-family
!

177
tests/topotests/bgp_vpnv4_noretain/r2/ipv4_vpn_routes_all.json Normal file
View File

@ -0,0 +1,177 @@
{
"vrfId": 0,
"vrfName": "default",
"routerId":"192.0.2.2",
"defaultLocPrf": 100,
"localAS": 65500,
"routes": {
"routeDistinguishers": {
"192.0.2.1:1": {
"10.101.0.0/24": [
{
"valid": true,
"bestpath": true,
"selectionReason": "First path received",
"pathFrom": "internal",
"prefix": "10.101.0.0",
"prefixLen": 24,
"network": "10.101.0.0/24",
"metric": 0,
"locPrf": 100,
"weight": 0,
"peerId": "10.125.0.1",
"path": "",
"origin": "incomplete",
"nexthops": [
{
"ip": "10.125.0.1",
"hostname": "r1",
"afi": "ipv4",
"used": true
}
]
}
]
},
"192.0.2.1:3": {
"10.103.0.0/24": [
{
"valid": true,
"bestpath": true,
"selectionReason": "First path received",
"pathFrom": "internal",
"prefix": "10.103.0.0",
"prefixLen": 24,
"network": "10.103.0.0/24",
"metric": 0,
"locPrf": 100,
"weight": 0,
"peerId": "10.125.0.1",
"path": "",
"origin": "incomplete",
"nexthops": [
{
"ip": "10.125.0.1",
"hostname": "r1",
"afi": "ipv4",
"used": true
}
]
}
]
},
"192.0.2.2:1": {
"10.201.0.0/24": [
{
"valid": true,
"bestpath": true,
"selectionReason": "First path received",
"pathFrom": "external",
"network": "10.201.0.0/24",
"prefixLen": 24,
"prefix": "10.201.0.0",
"metric": 0,
"weight": 32768,
"peerId": "(unspec)",
"path": "",
"origin": "incomplete",
"announceNexthopSelf": true,
"nhVrfName": "vrf1",
"nexthops": [
{
"ip": "0.0.0.0",
"hostname": "r2",
"afi": "ipv4",
"used": true
}
]
}
]
},
"192.0.2.2:2": {
"10.202.0.0/24": [
{
"valid": true,
"bestpath": true,
"selectionReason": "First path received",
"pathFrom": "external",
"network": "10.202.0.0/24",
"prefixLen": 24,
"prefix": "10.202.0.0",
"metric": 0,
"weight": 32768,
"peerId": "(unspec)",
"path": "",
"origin": "incomplete",
"announceNexthopSelf": true,
"nhVrfName": "vrf2",
"nexthops": [
{
"ip": "0.0.0.0",
"hostname": "r2",
"afi": "ipv4",
"used": true
}
]
}
]
},
"192.0.2.2:3": {
"10.203.0.0/24": [
{
"valid": true,
"bestpath": true,
"selectionReason": "First path received",
"pathFrom": "external",
"prefix": "10.203.0.0",
"prefixLen": 24,
"network": "10.203.0.0/24",
"metric": 0,
"weight": 32768,
"peerId": "(unspec)",
"path": "",
"origin": "incomplete",
"announceNexthopSelf": true,
"nhVrfName": "vrf3",
"nexthops": [
{
"ip": "0.0.0.0",
"hostname": "r2",
"afi": "ipv4",
"used": true
}
]
}
]
},
"192.0.2.2:4": {
"10.204.0.0/24": [
{
"valid": true,
"bestpath": true,
"selectionReason": "First path received",
"pathFrom": "external",
"prefix": "10.204.0.0",
"prefixLen": 24,
"network": "10.204.0.0/24",
"metric": 0,
"weight": 32768,
"peerId": "(unspec)",
"path": "",
"origin": "incomplete",
"announceNexthopSelf": true,
"nhVrfName": "vrf4",
"nexthops": [
{
"ip": "0.0.0.0",
"hostname": "r2",
"afi": "ipv4",
"used": true
}
]
}
]
}
}
}
}

17
tests/topotests/bgp_vpnv4_noretain/r2/ipv4_vpn_summary.json Normal file
View File

@ -0,0 +1,17 @@
{
"routerId":"192.0.2.2",
"as":65500,
"vrfId":0,
"vrfName":"default",
"peerCount":1,
"peers":{
"10.125.0.1":{
"remoteAs":65500,
"localAs":65500,
"version":4,
"state":"Established",
"peerState":"OK"
}
},
"totalPeers":1
}

2
tests/topotests/bgp_vpnv4_noretain/r2/isisd.conf
View File

@ -10,5 +10,5 @@ router isis 1
is-type level-1
net 49.0002.0000.1995.00
segment-routing on
segment-routing prefix 2.2.2.2/32 index 22
segment-routing prefix 192.0.2.2/32 index 22
!

20
tests/topotests/bgp_vpnv4_noretain/r2/zebra.conf
View File

@ -1,16 +1,22 @@
log stdout
interface lo
ip address 2.2.2.2/32
ip address 192.0.2.2/32
!
interface r2-gre0
ip address 192.168.0.2/24
!
interface r2-eth1 vrf vrf1
ip address 10.200.0.2/24
!
interface r2-eth2 vrf vrf2
ip address 10.210.0.2/24
!
interface r2-eth0
ip address 10.125.0.2/24
!
interface r2-eth1 vrf vrf1
ip address 10.201.0.2/24
!
interface r2-eth2 vrf vrf2
ip address 10.202.0.2/24
!
interface r2-eth3 vrf vrf3
ip address 10.203.0.1/24
!
interface r2-eth4 vrf vrf4
ip address 10.204.0.1/24
!

423
tests/topotests/bgp_vpnv4_noretain/test_bgp_vpnv4_noretain.py
View File

@ -17,6 +17,7 @@ import os
import sys
import json
from functools import partial
from copy import deepcopy
import pytest
# Save the Current Working Directory to find configuration files.
@ -34,6 +35,7 @@ from lib.topolog import logger
pytestmark = [pytest.mark.bgpd]
def build_topo(tgen):
"Build function"
@ -53,41 +55,54 @@ def build_topo(tgen):
switch = tgen.add_switch("s4")
switch.add_link(tgen.gears["r2"])
switch = tgen.add_switch("s5")
switch.add_link(tgen.gears["r1"])
switch = tgen.add_switch("s6")
switch.add_link(tgen.gears["r2"])
switch = tgen.add_switch("s7")
switch.add_link(tgen.gears["r1"])
switch = tgen.add_switch("s8")
switch.add_link(tgen.gears["r2"])
def _populate_iface():
tgen = get_topogen()
cmds_list = [
'modprobe mpls_router',
'echo 100000 > /proc/sys/net/mpls/platform_labels',
'ip link add vrf1 type vrf table 10',
'ip link set dev vrf1 up',
'ip link set dev {0}-eth1 master vrf1',
'echo 1 > /proc/sys/net/mpls/conf/vrf1/input',
"modprobe mpls_router",
"echo 100000 > /proc/sys/net/mpls/platform_labels",
"ip link add vrf1 type vrf table 10",
"ip link set dev vrf1 up",
"ip link set dev {0}-eth1 master vrf1",
"echo 1 > /proc/sys/net/mpls/conf/vrf1/input",
"ip link add vrf2 type vrf table 20",
"ip link set dev vrf2 up",
"ip link set dev {0}-eth2 master vrf2",
"echo 1 > /proc/sys/net/mpls/conf/vrf2/input",
"ip link add vrf3 type vrf table 30",
"ip link set dev vrf3 up",
"ip link set dev {0}-eth3 master vrf3",
"echo 1 > /proc/sys/net/mpls/conf/vrf3/input",
"ip link add vrf4 type vrf table 40",
"ip link set dev vrf4 up",
"ip link set dev {0}-eth4 master vrf4",
"echo 1 > /proc/sys/net/mpls/conf/vrf4/input",
]
cmds_list_extra = [
'ip link add vrf2 type vrf table 20',
'ip link set dev vrf2 up',
'ip link set dev {0}-eth2 master vrf2',
'echo 1 > /proc/sys/net/mpls/conf/vrf2/input',
]
for cmd in cmds_list:
input = cmd.format('r1', '1', '2')
logger.info('input: ' + cmd)
output = tgen.net['r1'].cmd(cmd.format('r1', '1', '2'))
logger.info('output: ' + output)
for cmd in cmds_list:
input = cmd.format('r2', '2', '1')
logger.info('input: ' + cmd)
output = tgen.net['r2'].cmd(cmd.format('r2', '2', '1'))
logger.info('output: ' + output)
input = cmd.format("r1", "1", "2")
logger.info("input: " + cmd)
output = tgen.net["r1"].cmd(cmd.format("r1", "1", "2"))
logger.info("output: " + output)
for cmd in cmds_list:
input = cmd.format("r2", "2", "1")
logger.info("input: " + cmd)
output = tgen.net["r2"].cmd(cmd.format("r2", "2", "1"))
logger.info("output: " + output)
for cmd in cmds_list_extra:
input = cmd.format('r2', '2', '1')
logger.info('input: ' + cmd)
output = tgen.net['r2'].cmd(cmd.format('r2', '2', '1'))
logger.info('output: ' + output)
def setup_module(mod):
"Sets up the pytest environment"
@ -96,7 +111,7 @@ def setup_module(mod):
tgen.start_topology()
router_list = tgen.routers()
_populate_iface()
_populate_iface()
for rname, router in router_list.items():
router.load_config(
@ -136,70 +151,334 @@ def router_json_cmp_exact_filter(router, cmd, expected):
if "version" in attr:
attr.pop("version")
# filter out RD with no data (e.g. "444:3": {})
json_tmp = deepcopy(json_output)
for rd, data in json_tmp["routes"]["routeDistinguishers"].items():
if len(data.keys()) == 0:
json_output["routes"]["routeDistinguishers"].pop(rd)
return topotest.json_cmp(json_output, expected, exact=True)
def test_bgp_no_retain():
def check_show_bgp_ipv4_vpn(rname, json_file):
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
router = tgen.gears[rname]
logger.info("Checking VPNv4 routes for convergence on {}".format(rname))
json_file = "{}/{}/{}".format(CWD, router.name, json_file)
expected = json.loads(open(json_file).read())
test_func = partial(
router_json_cmp_exact_filter,
router,
"show bgp ipv4 vpn json",
expected,
)
_, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
def test_protocols_convergence_step0():
"""
Assert that all protocols have converged
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# check that r2 peerings are ok
logger.info("Checking BGP ipv4 vpn summary for r2")
router = tgen.gears["r2"]
json_file = "{}/{}/ipv4_vpn_summary.json".format(CWD, router.name)
expected = json.loads(open(json_file).read())
test_func = partial(
topotest.router_json_cmp,
router,
"show bgp ipv4 vpn summary json",
expected,
)
_, result = topotest.run_and_expect(test_func, None, count=20, wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
def test_bgp_no_retain_step1():
"""
Check bgp no retain route-target all on r1
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# Check IPv4 VPN routing tables on r1
logger.info("Checking VPNv4 routes for convergence on r1")
router = tgen.gears["r1"]
json_file = "{}/{}/ipv4_vpn_routes.json".format(CWD, router.name)
if not os.path.isfile(json_file):
logger.info("skipping file {}".format(json_file))
assert 0, "{} file not found".format(json_file)
return
expected = json.loads(open(json_file).read())
test_func = partial(
router_json_cmp_exact_filter,
router,
"show bgp ipv4 vpn json",
expected,
)
_, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
rname = "r1"
check_show_bgp_ipv4_vpn(rname, "ipv4_vpn_routes_no_retain_init.json")
check_show_bgp_ipv4_vpn("r2", "ipv4_vpn_routes_all.json")
def test_bgp_retain():
def test_bgp_retain_step2():
"""
Apply and check bgp retain route-target all on r1
"""
rname = "r1"
cfg = """
configure
router bgp 65500
address-family ipv4 vpn
bgp retain route-target all
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
router = tgen.gears[rname]
router.vtysh_cmd(cfg)
check_show_bgp_ipv4_vpn(rname, "ipv4_vpn_routes_all.json")
check_show_bgp_ipv4_vpn("r2", "ipv4_vpn_routes_all.json")
def test_bgp_no_retain_step3():
"""
Apply and check no bgp retain route-target all on r1
"""
rname = "r1"
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
# Check IPv4 VPN routing tables on r1
logger.info("Checking VPNv4 routes on r1 after bgp no retain")
router = tgen.gears["r1"]
router.vtysh_cmd(
"configure\nrouter bgp 65500\naddress-family ipv4 vpn\nbgp retain route-target all\n"
"configure\nrouter bgp 65500\naddress-family ipv4 vpn\nno bgp retain route-target all\n"
)
json_file = "{}/{}/ipv4_vpn_routes_unfiltered.json".format(CWD, router.name)
if not os.path.isfile(json_file):
logger.info("skipping file {}".format(json_file))
assert 0, "{} file not found".format(json_file)
return
expected = json.loads(open(json_file).read())
test_func = partial(
router_json_cmp_exact_filter,
router,
"show bgp ipv4 vpn json",
expected,
)
_, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
assertmsg = '"{}" JSON output mismatches'.format(router.name)
assert result is None, assertmsg
check_show_bgp_ipv4_vpn(rname, "ipv4_vpn_routes_no_retain_init.json")
check_show_bgp_ipv4_vpn("r2", "ipv4_vpn_routes_all.json")
def test_bgp_no_retain_add_vrf2_step4():
"""
Add vrf2 on r1 and check bgp vpnv4 table
"""
rname = "r1"
cfg = """
configure
router bgp 65500 vrf vrf2
bgp router-id 192.0.2.1
address-family ipv4 unicast
redistribute connected
label vpn export 102
rd vpn export 192.0.2.1:200
rt vpn import 192.0.2.2:200
import vpn
exit-address-family
!
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
router = tgen.gears[rname]
router.vtysh_cmd(cfg)
check_show_bgp_ipv4_vpn(rname, "ipv4_vpn_routes_no_retain_init_plus_r2_vrf2.json")
check_show_bgp_ipv4_vpn("r2", "ipv4_vpn_routes_all.json")
def test_bgp_no_retain_unimport_vrf2_step5():
"""
Unimport to vrf2 on r1 and check bgp vpnv4 table
"""
rname = "r1"
cfg = """
configure
router bgp 65500 vrf vrf2
address-family ipv4 unicast
no import vpn
exit-address-family
!
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
router = tgen.gears[rname]
router.vtysh_cmd(cfg)
check_show_bgp_ipv4_vpn(rname, "ipv4_vpn_routes_no_retain_init.json")
check_show_bgp_ipv4_vpn("r2", "ipv4_vpn_routes_all.json")
def test_bgp_no_retain_import_vrf2_step6():
"""
Re-import to vrf2 on r1 and check bgp vpnv4 table
"""
rname = "r1"
cfg = """
configure
router bgp 65500 vrf vrf2
address-family ipv4 unicast
import vpn
exit-address-family
!
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
router = tgen.gears[rname]
router.vtysh_cmd(cfg)
check_show_bgp_ipv4_vpn(rname, "ipv4_vpn_routes_no_retain_init_plus_r2_vrf2.json")
check_show_bgp_ipv4_vpn("r2", "ipv4_vpn_routes_all.json")
def test_bgp_no_retain_import_vrf1_step7():
"""
Import r2 vrf1 into r1 vrf2 and check bgp vpnv4 table
"""
rname = "r1"
cfg = """
configure
router bgp 65500 vrf vrf2
address-family ipv4 unicast
rt vpn import 192.0.2.1:100
exit-address-family
!
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
router = tgen.gears[rname]
router.vtysh_cmd(cfg)
check_show_bgp_ipv4_vpn(rname, "ipv4_vpn_routes_no_retain_init.json")
check_show_bgp_ipv4_vpn("r2", "ipv4_vpn_routes_all.json")
def test_bgp_no_retain_import_vrf3_step8():
"""
Import r2 vrf3 into r1 vrf2 and check bgp vpnv4 table
"""
rname = "r1"
cfg = """
configure
router bgp 65500 vrf vrf2
address-family ipv4 unicast
rt vpn import 192.0.2.2:300
exit-address-family
!
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
router = tgen.gears[rname]
router.vtysh_cmd(cfg)
check_show_bgp_ipv4_vpn(rname, "ipv4_vpn_routes_no_retain_init_plus_r2_vrf3.json")
check_show_bgp_ipv4_vpn("r2", "ipv4_vpn_routes_all.json")
def test_bgp_no_retain_unimport_vrf3_step9():
"""
Un-import r2 vrf3 into r1 vrf2 and check bgp vpnv4 table
"""
rname = "r1"
cfg = """
configure
router bgp 65500 vrf vrf2
address-family ipv4 unicast
no rt vpn import 192.0.2.2:300
exit-address-family
!
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
router = tgen.gears[rname]
router.vtysh_cmd(cfg)
check_show_bgp_ipv4_vpn(rname, "ipv4_vpn_routes_no_retain_init.json")
check_show_bgp_ipv4_vpn("r2", "ipv4_vpn_routes_all.json")
def test_bgp_no_retain_import_vrf3_step10():
"""
Import r2 vrf3 into r1 vrf2 and check bgp vpnv4 table
"""
rname = "r1"
cfg = """
configure
router bgp 65500 vrf vrf2
address-family ipv4 unicast
rt vpn import 192.0.2.2:300
exit-address-family
!
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
router = tgen.gears[rname]
router.vtysh_cmd(cfg)
check_show_bgp_ipv4_vpn(rname, "ipv4_vpn_routes_no_retain_init_plus_r2_vrf3.json")
check_show_bgp_ipv4_vpn("r2", "ipv4_vpn_routes_all.json")
def test_bgp_no_retain_remove_vrf2_step11():
"""
Import r2 vrf3 into r1 vrf2 and check bgp vpnv4 table
"""
rname = "r1"
cfg = """
configure
no router bgp 65500 vrf vrf2
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
router = tgen.gears[rname]
router.vtysh_cmd(cfg)
check_show_bgp_ipv4_vpn(rname, "ipv4_vpn_routes_no_retain_init.json")
check_show_bgp_ipv4_vpn("r2", "ipv4_vpn_routes_all.json")
def test_bgp_retain_step12():
"""
Configure retain and check bgp vpnv4 table
"""
rname = "r1"
cfg = """
configure
router bgp 65500
address-family ipv4 vpn
bgp retain route-target all
"""
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
router = tgen.gears[rname]
router.vtysh_cmd(cfg)
check_show_bgp_ipv4_vpn(rname, "ipv4_vpn_routes_all.json")
check_show_bgp_ipv4_vpn("r2", "ipv4_vpn_routes_all.json")
def test_memory_leak():