Description
Before LAG memebr add/remove:
root@r-tigon-11:/home/admin# ip -4 route show default
default nhid 309 proto bgp src 10.1.0.32 metric 20
nexthop via 10.0.0.9 dev PortChannel103 weight 1
nexthop via 10.0.0.13 dev PortChannel104 weight 1
nexthop via 10.0.0.1 dev PortChannel101 weight 1
nexthop via 10.0.0.5 dev PortChannel102 weight 1
root@r-tigon-11:/home/admin# show ip route 0.0.0.0 json
{
"0.0.0.0/0": [
{
"destSelected": true,
"distance": 20,
"installed": true,
"installedNexthopGroupId": 309,
"internalFlags": 264,
"internalNextHopActiveNum": 4,
"internalNextHopNum": 4,
"internalStatus": 16,
"metric": 0,
"nexthopGroupId": 309,
"nexthops": [
{
"active": true,
"afi": "ipv4",
"fib": true,
"flags": 3,
"interfaceIndex": 419,
"interfaceName": "PortChannel101",
"ip": "10.0.0.1",
"weight": 1
},
{
"active": true,
"afi": "ipv4",
"fib": true,
"flags": 3,
"interfaceIndex": 420,
"interfaceName": "PortChannel102",
"ip": "10.0.0.5",
"weight": 1
},
{
"active": true,
"afi": "ipv4",
"fib": true,
"flags": 3,
"interfaceIndex": 421,
"interfaceName": "PortChannel103",
"ip": "10.0.0.9",
"weight": 1
},
{
"active": true,
"afi": "ipv4",
"fib": true,
"flags": 3,
"interfaceIndex": 422,
"interfaceName": "PortChannel104",
"ip": "10.0.0.13",
"weight": 1
}
],
"offloaded": true,
"prefix": "0.0.0.0/0",
"prefixLen": 0,
"protocol": "bgp",
"selected": true,
"table": 254,
"uptime": "00:07:31",
"vrfId": 0,
"vrfName": "default"
}
]
}
root@r-tigon-11:/home/admin# show interfaces portchannel
Flags: A - active, I - inactive, Up - up, Dw - Down, N/A - not available,
S - selected, D - deselected, * - not synced
No. Team Dev Protocol Ports
----- -------------- ----------- ---------------------------
101 PortChannel101 LACP(A)(Up) Ethernet0(S) Ethernet4(S)
102 PortChannel102 LACP(A)(Up) Ethernet20(S) Ethernet16(S)
103 PortChannel103 LACP(A)(Up) Ethernet64(S) Ethernet68(S)
104 PortChannel104 LACP(A)(Up) Ethernet80(S) Ethernet84(S)
root@r-tigon-11:/home/admin# show ip interfaces
Interface Master IPv4 address/mask Admin/Oper BGP Neighbor Neighbor IP
-------------- -------- ------------------- ------------ -------------- -------------
Loopback0 10.1.0.32/32 up/up N/A N/A
PortChannel101 10.0.0.0/31 up/up ARISTA01T1 10.0.0.1
PortChannel102 10.0.0.4/31 up/up ARISTA02T1 10.0.0.5
PortChannel103 10.0.0.8/31 up/up ARISTA03T1 10.0.0.9
PortChannel104 10.0.0.12/31 up/up ARISTA04T1 10.0.0.13
Vlan1000 192.168.0.1/21 up/up N/A N/A
docker0 240.127.1.1/24 up/down N/A N/A
eth0 10.210.25.10/22 up/up N/A N/A
lo 127.0.0.1/16 up/up N/A N/A
root@r-tigon-11:/home/admin# show ip bgp summary
IPv4 Unicast Summary:
BGP router identifier 10.1.0.32, local AS number 64601 vrf-id 0
BGP table version 9555
RIB entries 12807, using 2458944 bytes of memory
Peers 4, using 2967904 KiB of memory
Peer groups 4, using 256 bytes of memory
Neighbhor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd NeighborName
----------- --- ----- --------- --------- -------- ----- ------ --------- -------------- --------------
10.0.0.1 4 64802 3462 3463 0 0 0 00:12:54 6400 ARISTA01T1
10.0.0.5 4 64802 3460 3460 0 0 0 00:12:47 6400 ARISTA02T1
10.0.0.9 4 64802 3463 3467 0 0 0 00:12:57 6400 ARISTA03T1
10.0.0.13 4 64802 3463 3467 0 0 0 00:12:57 6400 ARISTA04T1
Total number of neighbors 4
root@r-tigon-11:/home/admin# tail -F /var/log/syslog | grep '0.0.0.0/0'
Nov 7 18:02:19.840060 r-tigon-11 INFO hostcfgd[213526]: TCPMSS tcp opt -- in * out * 0.0.0.0/0 -> 10.1.0.32 tcp flags:0x02/0x02 TCPMSS set 1460
Nov 7 18:02:19.848076 r-tigon-11 INFO hostcfgd[213531]: TCPMSS tcp opt -- in * out * 10.1.0.32 -> 0.0.0.0/0 tcp flags:0x02/0x02 TCPMSS set 1460
Nov 7 18:04:29.663742 r-tigon-11 INFO swss#orchagent: :- addRoutePost: Post set route 0.0.0.0/0 with next hop(s) 10.0.0.9@PortChannel103,10.0.0.13@PortChannel104
Nov 7 18:04:45.986055 r-tigon-11 INFO swss#orchagent: :- addRoutePost: Post set route 0.0.0.0/0 with next hop(s) 10.0.0.1@PortChannel101,10.0.0.9@PortChannel103,10.0.0.13@PortChannel104
Nov 7 18:04:59.260038 r-tigon-11 INFO swss#orchagent: :- addRoutePost: Post set route 0.0.0.0/0 with next hop(s) 10.0.0.1@PortChannel101,10.0.0.5@PortChannel102,10.0.0.9@PortChannel103,10.0.0.13@PortChannel104
After LAG memebr add/remove:
root@r-tigon-11:/home/admin# ./member.sh
=> remove Ethernet20 from PortChannel102
=> add Ethernet20 from PortChannel102
=> remove Ethernet64 from PortChannel103
=> add Ethernet64 from PortChannel103
=> remove Ethernet4 from PortChannel101
=> add Ethernet4 from PortChannel101
=> remove Ethernet80 from PortChannel104
=> add Ethernet80 from PortChannel104
root@r-tigon-11:/home/admin# tail -F /var/log/frr/zebra.log | grep '0.0.0.0/0'
Nov 7 18:22:35.567882 r-tigon-11 WARNING bgp#zebra[35]: [VYKYC-709DP] default(0:254):0.0.0.0/0: Route install failed
root@r-tigon-11:/home/admin# tail -F /var/log/syslog | grep '0.0.0.0/0'
Nov 7 18:22:40.853675 r-tigon-11 INFO swss#orchagent: :- addRoutePost: Post set route 0.0.0.0/0 with next hop(s) 10.0.0.1@PortChannel101,10.0.0.5@PortChannel102,10.0.0.13@PortChannel104
Nov 7 18:22:54.432973 r-tigon-11 INFO swss#orchagent: :- addRoutePost: Post set route 0.0.0.0/0 with next hop(s) 10.0.0.1@PortChannel101,10.0.0.5@PortChannel102,10.0.0.9@PortChannel103
root@r-tigon-11:/home/admin# show ip bgp summary
IPv4 Unicast Summary:
BGP router identifier 10.1.0.32, local AS number 64601 vrf-id 0
BGP table version 21953
RIB entries 12807, using 2458944 bytes of memory
Peers 4, using 2967904 KiB of memory
Peer groups 4, using 256 bytes of memory
Neighbhor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd NeighborName
----------- --- ----- --------- --------- -------- ----- ------ --------- -------------- --------------
10.0.0.1 4 64802 6860 7251 0 0 0 00:04:37 6400 ARISTA01T1
10.0.0.5 4 64802 6858 10088 0 0 0 00:04:40 6400 ARISTA02T1
10.0.0.9 4 64802 6861 10096 0 0 0 00:04:38 6400 ARISTA03T1
10.0.0.13 4 64802 6861 6873 0 0 0 00:04:34 6400 ARISTA04T1
Total number of neighbors 4
root@r-tigon-11:/home/admin# show ip interfaces
Interface Master IPv4 address/mask Admin/Oper BGP Neighbor Neighbor IP
-------------- -------- ------------------- ------------ -------------- -------------
Loopback0 10.1.0.32/32 up/up N/A N/A
PortChannel101 10.0.0.0/31 up/up ARISTA01T1 10.0.0.1
PortChannel102 10.0.0.4/31 up/up ARISTA02T1 10.0.0.5
PortChannel103 10.0.0.8/31 up/up ARISTA03T1 10.0.0.9
PortChannel104 10.0.0.12/31 up/up ARISTA04T1 10.0.0.13
Vlan1000 192.168.0.1/21 up/up N/A N/A
docker0 240.127.1.1/24 up/down N/A N/A
eth0 10.210.25.10/22 up/up N/A N/A
lo 127.0.0.1/16 up/up N/A N/A
root@r-tigon-11:/home/admin# show interfaces portchannel
Flags: A - active, I - inactive, Up - up, Dw - Down, N/A - not available,
S - selected, D - deselected, * - not synced
No. Team Dev Protocol Ports
----- -------------- ----------- ---------------------------
101 PortChannel101 LACP(A)(Up) Ethernet0(S) Ethernet4(S)
102 PortChannel102 LACP(A)(Up) Ethernet20(S) Ethernet16(S)
103 PortChannel103 LACP(A)(Up) Ethernet64(S) Ethernet68(S)
104 PortChannel104 LACP(A)(Up) Ethernet80(S) Ethernet84(S)
root@r-tigon-11:/home/admin# show ip route 0.0.0.0 json
{
"0.0.0.0/0": [
{
"destSelected": true,
"distance": 20,
"failed": true,
"installedNexthopGroupId": 309,
"internalFlags": 264,
"internalNextHopActiveNum": 4,
"internalNextHopNum": 4,
"internalStatus": 32,
"metric": 0,
"nexthopGroupId": 309,
"nexthops": [
{
"active": true,
"afi": "ipv4",
"fib": true,
"flags": 3,
"interfaceIndex": 419,
"interfaceName": "PortChannel101",
"ip": "10.0.0.1",
"weight": 1
},
{
"active": true,
"afi": "ipv4",
"fib": true,
"flags": 3,
"interfaceIndex": 420,
"interfaceName": "PortChannel102",
"ip": "10.0.0.5",
"weight": 1
},
{
"active": true,
"afi": "ipv4",
"fib": true,
"flags": 3,
"interfaceIndex": 421,
"interfaceName": "PortChannel103",
"ip": "10.0.0.9",
"weight": 1
},
{
"active": true,
"afi": "ipv4",
"fib": true,
"flags": 3,
"interfaceIndex": 422,
"interfaceName": "PortChannel104",
"ip": "10.0.0.13",
"weight": 1
}
],
"offloaded": true,
"prefix": "0.0.0.0/0",
"prefixLen": 0,
"protocol": "bgp",
"selected": true,
"table": 254,
"uptime": "00:06:07",
"vrfId": 0,
"vrfName": "default"
}
]
}
root@r-tigon-11:/home/admin# ip -4 route show default
Steps to reproduce the issue:
- Do LAG member flap
Describe the results you received:
root@r-tigon-11:/home/admin# tail -F /var/log/frr/zebra.log | grep '0.0.0.0/0'
Nov 7 18:22:35.567882 r-tigon-11 WARNING bgp#zebra[35]: [VYKYC-709DP] default(0:254):0.0.0.0/0: Route install failed
Describe the results you expected:
No errors are expected
Output of show version:
root@r-tigon-11:/host/bak# show version
SONiC Software Version: SONiC.master.402751-c0b0f2a69
SONiC OS Version: 11
Distribution: Debian 11.7
Kernel: 5.10.0-23-2-amd64
Build commit: c0b0f2a69
Build date: Sat Nov 4 11:41:31 UTC 2023
Built by: AzDevOps@vmss-soni002DIS
Platform: x86_64-mlnx_msn4600c-r0
HwSKU: Mellanox-SN4600C-C64
ASIC: mellanox
ASIC Count: 1
Serial Number: MT2023X22082
Model Number: MSN4600-CS2FO
Hardware Revision: A1
Uptime: 17:24:59 up 40 min, 4 users, load average: 0.96, 0.88, 0.74
Date: Tue 07 Nov 2023 17:24:59
Docker images:
REPOSITORY TAG IMAGE ID SIZE
docker-syncd-mlnx latest dd53c89560c2 823MB
docker-syncd-mlnx master.402751-c0b0f2a69 dd53c89560c2 823MB
docker-platform-monitor latest 65ede652e825 814MB
docker-platform-monitor master.402751-c0b0f2a69 65ede652e825 814MB
docker-macsec latest 620949b0c112 326MB
docker-dhcp-relay latest f0b8ee99d063 307MB
docker-eventd latest 53f49f35074e 299MB
docker-eventd master.402751-c0b0f2a69 53f49f35074e 299MB
docker-orchagent latest f44c166f619c 336MB
docker-orchagent master.402751-c0b0f2a69 f44c166f619c 336MB
docker-fpm-frr latest 8e3837c07e3e 356MB
docker-fpm-frr master.402751-c0b0f2a69 8e3837c07e3e 356MB
docker-nat latest 277b29a729c5 327MB
docker-nat master.402751-c0b0f2a69 277b29a729c5 327MB
docker-sflow latest a4afc7e8a2e7 326MB
docker-sflow master.402751-c0b0f2a69 a4afc7e8a2e7 326MB
docker-teamd latest 6bdc0761134b 324MB
docker-teamd master.402751-c0b0f2a69 6bdc0761134b 324MB
docker-snmp latest c917c27c7836 338MB
docker-snmp master.402751-c0b0f2a69 c917c27c7836 338MB
docker-sonic-telemetry latest a7bd888fd016 387MB
docker-sonic-telemetry master.402751-c0b0f2a69 a7bd888fd016 387MB
docker-lldp latest c71d3ce2fcfc 341MB
docker-lldp master.402751-c0b0f2a69 c71d3ce2fcfc 341MB
docker-database latest 89c95bd0af0b 299MB
docker-database master.402751-c0b0f2a69 89c95bd0af0b 299MB
docker-mux latest a6ec91023c3d 348MB
docker-mux master.402751-c0b0f2a69 a6ec91023c3d 348MB
docker-router-advertiser latest 4dabbcfd95e8 299MB
docker-router-advertiser master.402751-c0b0f2a69 4dabbcfd95e8 299MB
docker-sonic-mgmt-framework latest 0d1f658824f2 416MB
docker-sonic-mgmt-framework master.402751-c0b0f2a69 0d1f658824f2 416MB
Output of show techsupport:
Additional information you deem important (e.g. issue happens only occasionally):
Description
Before LAG memebr add/remove:
After LAG memebr add/remove:
Steps to reproduce the issue:
Describe the results you received:
Describe the results you expected:
No errors are expected
Output of
show version:Output of
show techsupport:Additional information you deem important (e.g. issue happens only occasionally):