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ERR syslog about snmp-subagent [ax_interface] "self.vlanmac_ifindex_map[vlanmac] = mibs.get_index_from_str(self.if_id_map[port_id])#012KeyError: b'20000000009b6']" #5345

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tim-rj opened this issue Sep 9, 2020 · 4 comments · May be fixed by sonic-net/sonic-snmpagent#173
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ERR syslog about snmp-subagent [ax_interface] "self.vlanmac_ifindex_map[vlanmac] = mibs.get_index_from_str(self.if_id_map[port_id])#012KeyError: b'20000000009b6']" #5345

tim-rj opened this issue Sep 9, 2020 · 4 comments · May be fixed by sonic-net/sonic-snmpagent#173
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@SuvarnaMeenakshi
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@tim-rj
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tim-rj commented Sep 9, 2020

Description

ERR syslog about snmp-subagent [ax_interface] "self.vlanmac_ifindex_map[vlanmac] = mibs.get_index_from_str(self.if_id_map[port_id])#012KeyError: b'20000000009b6']"

Steps to reproduce the issue:

  1. Upgrade the device to master,Check syslog, whether there is abnormal log

Describe the results you received:

Sep  9 14:04:09.946377 sonic ERR snmp#snmp-subagent message repeated 14 times: [ [ax_interface] ERROR: MIBUpdater.start() caught an unexpected exception during update_data()#012Traceback (most recent call last):#012  File "/usr/local/lib/python3.7/dist-packages/ax_interface/mib.py", line 43, in start#012    self.update_data()#012  File "/usr/local/lib/python3.7/dist-packages/sonic_ax_impl/mibs/ietf/rfc4363.py", line 75, in update_data#012    self.vlanmac_ifindex_map[vlanmac] = mibs.get_index_from_str(self.if_id_map[port_id])#012KeyError: b'20000000009b6']
Sep  9 14:04:09.946377 sonic WARNING snmp#snmp-subagent [sonic_ax_impl] WARNING: Invalid mgmt IP 12.1.1.2,12::2
Sep  9 14:04:09.946377 sonic WARNING snmp#snmp-subagent [sonic_ax_impl] WARNING: Invalid management IP 12.1.1.2,12::2
Sep  9 14:04:12.065035 sonic ERR snmp#snmp-subagent [ax_interface] ERROR: MIBUpdater.start() caught an unexpected exception during update_data()#012Traceback (most recent call last):#012  File "/usr/local/lib/python3.7/dist-packages/ax_interface/mib.py", line 43, in start#012    self.update_data()#012  File "/usr/local/lib/python3.7/dist-packages/sonic_ax_impl/mibs/ietf/rfc4363.py", line 75, in update_data#012    self.vlanmac_ifindex_map[vlanmac] = mibs.get_index_from_str(self.if_id_map[port_id])#012KeyError: b'20000000009b6'
root@sonic:/home/admin# ^C
root@sonic:/home/admin# show ip interfaces 
Interface    Master           IPv4 address/mask    Admin/Oper    BGP Neighbor    Neighbor IP
-----------  ---------------  -------------------  ------------  --------------  -------------
Ethernet49                    10.0.0.96/31         up/up         ARISTA21T0      10.0.0.97
Ethernet51   PortChannel0001  10.0.0.100/31        up/up         ARISTA23T0      10.0.0.101
Loopback0                     10.1.0.1/32          up/up         N/A             N/A
Vlan2                         12.1.1.1/16          up/up         N/A             N/A
docker0                       240.127.1.1/24       up/down       N/A             N/A
lo                            127.0.0.1/8          up/up         N/A             N/A
root@sonic:/home/admin# show ipv6 interfaces 
Interface        Master           IPv6 address/mask                             Admin/Oper    BGP Neighbor    Neighbor IP
---------------  ---------------  --------------------------------------------  ------------  --------------  -------------
Bridge                            fe80::c0cc:94ff:fe9f:56bd%Bridge/64           up/up         N/A             N/A
Ethernet49                        10::96/64                                     up/up         ARISTA21T0      10::97
                                  fe80::5a69:6cff:fefb:2122%Ethernet49/64       up/up         N/A             N/A
Ethernet51       PortChannel0001  fe80::5a69:6cff:fefb:2122%Ethernet51/64       up/up         N/A             N/A
Loopback0                         10::1/128                                     up/up         N/A             N/A
                                  fe80::38bf:46ff:fef5:8458%Loopback0/64        up/up         N/A             N/A
PortChannel0001  Bridge           fe80::5a69:6cff:fefb:2122%PortChannel0001/64  up/up         N/A             N/A
Vlan2                             12::1/64                                      up/up         N/A             N/A
                                  fe80::5a69:6cff:fefb:2122%Vlan2/64            up/up         N/A             N/A
eth0                              fe80::5a69:6cff:fefb:2122%eth0/64             up/up         N/A             N/A
lo                                ::1/128                                       up/up         N/A             N/A

Describe the results you expected:
no print err log

Additional information you deem important (e.g. issue happens only occasionally):

**Output of `show version`:**

```

root@sonic:/home/admin# show version

SONiC Software Version: SONiC.master.399-07b9d7f4
Distribution: Debian 10.5
Kernel: 4.19.0-9-2-amd64
Build commit: 07b9d7f
Build date: Sun Aug 30 07:41:30 UTC 2020
Built by: johnar@jenkins-worker-8

Platform: x86_64-ruijie_b6510-48vs8cq-r0
HwSKU: B6510-48VS8CQ
ASIC: broadcom
Serial Number: G1W10072
Uptime: 17:26:38 up 2:51, 1 user, load average: 0.46, 0.37, 0.29

Docker images:
REPOSITORY TAG IMAGE ID SIZE
docker-teamd latest 0da13af040db 386MB
docker-teamd master.399-07b9d7f4 0da13af040db 386MB
docker-sonic-mgmt-framework latest b3309c50c848 481MB
docker-sonic-mgmt-framework master.399-07b9d7f4 b3309c50c848 481MB
docker-router-advertiser latest 81563660196e 355MB
docker-router-advertiser master.399-07b9d7f4 81563660196e 355MB
docker-platform-monitor latest bfc946290aa4 429MB
docker-platform-monitor master.399-07b9d7f4 bfc946290aa4 429MB
docker-lldp latest 17607fd34cc8 383MB
docker-lldp master.399-07b9d7f4 17607fd34cc8 383MB
docker-dhcp-relay latest 57d5a7e2d58d 362MB
docker-dhcp-relay master.399-07b9d7f4 57d5a7e2d58d 362MB
docker-database latest ddb145fe6d62 355MB
docker-database master.399-07b9d7f4 ddb145fe6d62 355MB
docker-orchagent latest 2b0a4c92794f 400MB
docker-orchagent master.399-07b9d7f4 2b0a4c92794f 400MB
docker-nat latest eb5c6b6736c2 389MB
docker-nat master.399-07b9d7f4 eb5c6b6736c2 389MB
docker-sonic-telemetry latest 6c4292e948fd 425MB
docker-sonic-telemetry master.399-07b9d7f4 6c4292e948fd 425MB
docker-fpm-frr latest 076744e3f438 402MB
docker-fpm-frr master.399-07b9d7f4 076744e3f438 402MB
docker-sflow latest 1046ede2b365 390MB
docker-sflow master.399-07b9d7f4 1046ede2b365 390MB
docker-snmp latest ffbf20d1540a 395MB
docker-snmp master.399-07b9d7f4 ffbf20d1540a 395MB
docker-syncd-brcm latest d62f6c218ce2 447MB
docker-syncd-brcm master.399-07b9d7f4 d62f6c218ce2 447MB

root@sonic:/home/admin#
```

**Attach debug file `sudo generate_dump`:**

```
(paste your output here)
```
@anshuv-mfst
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Can you please upload show techsupport output. @tim-rj

@tim-rj
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tim-rj commented Sep 17, 2020

show tech.text.log

@tim-rj
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tim-rj commented Oct 13, 2020

one question: it seems that this issue be fixd in snmp-agent component on commit id:f66288d5, but be overide on commit id 45e4e78, is there exist some mistake, how do we handler this err syslog later?

@tim-rj tim-rj linked a pull request Nov 4, 2020 that will close this issue
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@qiluo-msft
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The code in f66288d are trying to solve another issue relating SAI 0.9.4.
Could you please check if this issue exists on latest image?

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[master] Fix exception in update_data of rfc4363.py tim-rj/sonic-snmpagent
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@qiluo-msft @SuvarnaMeenakshi @tim-rj @anshuv-mfst