leoli-nps
commented
5 years ago
<1> Top
```
SW1 SW2
Ethernet121 -------- Ethernet121
Ethernet122 -------- Ethernet122
Ethernet123 -------- Ethernet123
```
<2> Config
```
SW1:
"PORTCHANNEL": {
"PortChannel0001": {
"admin_status": "up",
"mtu": "9100"
}
},
"PORTCHANNEL_MEMBER": {
"PortChannel0001|Ethernet121": {},
"PortChannel0001|Ethernet122": {},
"PortChannel0001|Ethernet123": {}
}
SW2:
"PORTCHANNEL": {
"PortChannel0001": {
"admin_status": "up",
"mtu": "9100"
}
},
"PORTCHANNEL_MEMBER": {
"PortChannel0001|Ethernet121": {},
"PortChannel0001|Ethernet122": {},
"PortChannel0001|Ethernet123": {}
}
```
<3> Get information about PortChannel0001 in APP_DB before warm-reboot
```
admin@sonic:~$ show interfaces portchannel
Flags: A - active, I - inactive, Up - up, Dw - Down, N/A - not available, S - selected, D - deselected
No. Team Dev Protocol Ports
----- --------------- ----------- --------------------------------------------
0001 PortChannel0001 LACP(A)(Up) Ethernet123(S) Ethernet122(S) Ethernet121(S)
admin@sonic:~$ redis-cli -n 4 hgetall "PORTCHANNEL|PortChannel0001"
1) "admin_status"
2) "up"
3) "mtu"
4) "9100"
admin@sonic:~$ redis-cli -n 0 hgetall "LAG_TABLE:PortChannel0001"
1) "admin_status"
2) "up"
3) "oper_status"
4) "up"
5) "mtu"
6) "9100"
admin@sonic:~$
```
<4> Execute command `sudo warm-reboot`
```
admin@sonic:~$ sudo warm-reboot
```
<5> Get information about PortChannel0001 in APP_DB after warm-reboot
```
admin@sonic:~$ show interfaces portchannel
Flags: A - active, I - inactive, Up - up, Dw - Down, N/A - not available, S - selected, D - deselected
No. Team Dev Protocol Ports
----- --------------- ----------- --------------------------------------------
0001 PortChannel0001 LACP(A)(Up) Ethernet123(S) Ethernet122(S) Ethernet121(S)
admin@sonic:~$ redis-cli -n 4 hgetall "PORTCHANNEL|PortChannel0001"
1) "admin_status"
2) "up"
3) "mtu"
4) "9100"
admin@sonic:~$ redis-cli -n 0 hgetall "LAG_TABLE:PortChannel0001"
1) "admin_status"
2) "up"
3) "oper_status"
4) "up"
admin@sonic:~$
```
<6> Debug
In fact, in the initial period after warm-reboot, lag mtu still exists in app_db, but after about a minute, it is gone; look at the swss.rec file, you can see the following information:
```
admin@sonic:~$ sudo grep LAG_TABLE:PortChannel0001 /var/log/swss/swss.rec
2019-05-13.11:26:14.466114|LAG_TABLE:PortChannel0001|SET|admin_status:up|oper_status:down
2019-05-13.11:26:14.483630|LAG_TABLE:PortChannel0001|SET|admin_status:up|oper_status:down
2019-05-13.11:26:14.503710|LAG_TABLE:PortChannel0001|SET|admin_status:up|oper_status:down
2019-05-13.11:26:14.694809|LAG_TABLE:PortChannel0001|SET|admin_status:up|oper_status:up
2019-05-13.11:27:57.451577|LAG_TABLE:PortChannel0001|SET|admin_status:up|oper_status:up
2019-05-13.11:27:57.451758|LAG_TABLE:PortChannel0001|SET|mtu:9100
2019-05-13.11:30:33.269369|LAG_TABLE:PortChannel0001|SET|admin_status:up|oper_status:up|mtu:9100
2019-05-13.11:30:34.038090|LAG_TABLE:PortChannel0001|SET|mtu:9100
2019-05-13.11:31:34.401449|LAG_TABLE:PortChannel0001|SET|admin_status:up|oper_status:up
admin@sonic:~$
```
**show version**
```
admin@sonic:~$ show version
SONiC Software Version: SONiC.origin_201811.0-dirty-20190418.223441
Distribution: Debian 9.8
Kernel: 4.9.0-8-amd64
Build commit: 051bb23
Build date: Fri Apr 19 06:33:08 UTC 2019
Built by: simon@nps65
Docker images:
REPOSITORY TAG IMAGE ID SIZE
docker-syncd-nephos latest 1c3500846360 326MB
docker-syncd-nephos origin_201811.0-dirty-20190418.223441 1c3500846360 326MB
docker-orchagent-nephos latest f9c367fb5fc5 368MB
docker-orchagent-nephos origin_201811.0-dirty-20190418.223441 f9c367fb5fc5 368MB
docker-teamd latest 8a6898e1dfa7 353MB
docker-teamd origin_201811.0-dirty-20190418.223441 8a6898e1dfa7 353MB
docker-fpm-quagga latest de4a2a321623 372MB
docker-fpm-quagga origin_201811.0-dirty-20190418.223441 de4a2a321623 372MB
docker-lldp-sv2 latest 7c53844507f0 294MB
docker-lldp-sv2 origin_201811.0-dirty-20190418.223441 7c53844507f0 294MB
docker-dhcp-relay latest 903f08df67cf 258MB
docker-dhcp-relay origin_201811.0-dirty-20190418.223441 903f08df67cf 258MB
docker-database latest 2b048aa0fe97 255MB
docker-database origin_201811.0-dirty-20190418.223441 2b048aa0fe97 255MB
docker-snmp-sv2 latest b42a83fc56f8 330MB
docker-snmp-sv2 origin_201811.0-dirty-20190418.223441 b42a83fc56f8 330MB
docker-router-advertiser latest b6b8150e559a 254MB
docker-router-advertiser origin_201811.0-dirty-20190418.223441 b6b8150e559a 254MB
docker-platform-monitor latest f8442c4d55a8 297MB
docker-platform-monitor origin_201811.0-dirty-20190418.223441 f8442c4d55a8 297MB
admin@sonic:~$
```
**Attach debug file `sudo generate_dump`:**
[sonic_dump_sonic_20190513_114008.tar.gz](https://github.com/Azure/sonic-swss/files/3172672/sonic_dump_sonic_20190513_114008.tar.gz)
Signed-off-by: leo.li leo.li@nephosinc.com
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