Resolución de Problemas de "Network-receive-error" de SMF CNDP en interfaces eno6/bd0
Contenido
Introducción
En este documento se describe cómo identificar el switch de hoja e informática para una plataforma de implementación nativa en la nube (CNDP) de una función de administración de sesiones (SMF) específica y cómo resolver la alerta de "error de recepción de red" que aparece en el entorno de ejecución común (CEE).
Problema
Las alertas de "error de recepción de red" se informan en el rack CEE Opcenter2.
[lab0200-smf/labceed22] cee# show alerts active summary
NAME UID SEVERITY STARTS AT SOURCE SUMMARY
-----------------------------------------------------------------------------------------------------------------------------------------------------
network-receive-error 998c77d6a6a0 major 10-26T00:10:31 lab0200-smf-mas Network interface "bd0" showing receive errors on hostname lab0200-s...
network-receive-error ea4217bf9d9e major 10-26T00:10:31 lab0200-smf-mas Network interface "bd0" showing receive errors on hostname lab0200-s...
network-receive-error 97fad40d2a58 major 10-26T00:10:31 lab0200-smf-mas Network interface "eno6" showing receive errors on hostname lab0200-...
network-receive-error b79540eb4e78 major 10-26T00:10:31 lab0200-smf-mas Network interface "eno6" showing receive errors on hostname lab0200-...
network-receive-error e3d163ff4012 major 10-26T00:10:01 lab0200-smf-mas Network interface "bd0" showing receive errors on hostname lab0200-s...
network-receive-error 12a7b5a5c5d5 major 10-26T00:10:01 lab0200-smf-mas Network interface "eno6" showing receive errors on hostname lab0200-...
Consulte la Guía de Operaciones de Infraestructura de Microservicios de Suscriptor de Núcleo de Nube Ultra para obtener la descripción de la alerta.
Alert: network-receive-errors
Annotations:
Type: Communications Alarm
Summary: Network interface "{{ $labels.device }}" showing receive errors on hostname {{ $labels.hostname }}"
Expression:
|
rate(node_network_receive_errs_total{device!~"veth.+"}[2m]) > 0
For: 2m
Labels:
Severity: major
Identificar el origen de las alertas
Inicie sesión en CEE labceed22, verifique los detalles de alerta "network-receive-error" informados en las interfaces bd0 y eno6 para identificar el nodo y el grupo de dispositivos.
[lab0200-smf/labceed22] cee# show alerts active summary
NAME UID SEVERITY STARTS AT SOURCE SUMMARY
---------------------------------------------------------------------------------------------------------------------------------------------------------
network-receive-error 3b6a0a7ce1a8 major 10-26T21:17:01 lab0200-smf-mas Network interface "bd0" showing receive errors on hostname tpc...
network-receive-error 15abab75c8fc major 10-26T21:17:01 lab0200-smf-mas Network interface "eno6" showing receive errors on hostname tp...
Ejecute show alerts active detail network-receive-error <UID> para obtener detalles de la alerta.
En el ejemplo, el origen de ambas alertas es node lab0200-smf-primary-1 pod node-exporter-47xmm.
[lab0200-smf/labceed22] cee# show alerts active detail network-receive-error 3b6a0a7ce1a8
alerts active detail network-receive-error 3b6a0a7ce1a8
severity major
type "Communications Alarm"
startsAt 2021-10-26T21:17:01.913Z
source lab0200-smf-primary-1
summary "Network interface \"bd0\" showing receive errors on hostname lab0200-smf-primary-1\""
labels [ "alertname: network-receive-errors" "cluster: lab0200-smf_cee-labceed22" "component: node-exporter" "controller_revision_hash: 75c4cb979f" "device: bd0" "hostname: lab0200-smf-primary-1" "instance: 10.192.1.42:9100" "job: kubernetes-pods" "monitor: prometheus" "namespace: cee-labceed22" "pod: node-exporter-47xmm" "pod_template_generation: 1" "replica: lab0200-smf_cee-labceed22" "severity: major" ]
annotations [ "summary: Network interface \"bd0\" showing receive errors on hostname lab0200-smf-primary-1\"" "type: Communications Alarm" ]
[lab0200-smf/labceed22] cee# show alerts active detail network-receive-error 15abab75c8fc
alerts active detail network-receive-error 15abab75c8fc
severity major
type "Communications Alarm"
startsAt 2021-10-26T21:17:01.913Z
source lab0200-smf-primary-1
summary "Network interface \"eno6\" showing receive errors on hostname lab0200-smf-primary-1\""
labels [ "alertname: network-receive-errors" "cluster: lab0200-smf_cee-labceed22" "component: node-exporter" "controller_revision_hash: 75c4cb979f" "device: eno6" "hostname: lab0200-smf-primary-1" "instance: 10.192.1.42:9100" "job: kubernetes-pods" "monitor: prometheus" "namespace: cee-labceed22" "pod: node-exporter-47xmm" "pod_template_generation: 1" "replica: lab0200-smf_cee-labceed22" "severity: major" ]
annotations [ "summary: Network interface \"eno6\" showing receive errors on hostname lab0200-smf-primary-1\"" "type: Communications Alarm" ]
Validar estado de puertos, POD y nodo
Validación de nodo y POD desde VIP principal
Inicie sesión en K8s Primary VIP of the Rack2 para validar el estado del nodo de origen y el grupo de dispositivos.
En el ejemplo, ambos están en buen estado: Listo y en ejecución.
cloud-user@lab0200-smf-primary-1:~$ kubectl get nodes
NAME STATUS ROLES AGE VERSION
lab0200-smf-primary-1 Ready control-plane 105d v1.21.0
lab0200-smf-primary-2 Ready control-plane 105d v1.21.0
lab0200-smf-primary-3 Ready control-plane 105d v1.21.0
lab0200-smf-worker-1 Ready <none> 105d v1.21.0
lab0200-smf-worker-2 Ready <none> 105d v1.21.0
lab0200-smf-worker-3 Ready <none> 105d v1.21.0
lab0200-smf-worker-4 Ready <none> 105d v1.21.0
lab0200-smf-worker-5 Ready <none> 105d v1.21.0
cloud-user@lab0200-smf-primary-1:~$ kubectl get pods -A -o wide | grep node-exporter--47xmm
cee-labceed22 node-exporter-47xmm 1/1 Running 0 18d 10.192.1.44 lab0200-smf-primary-1 <none> <none>
Validaciones de puertos del VIP principal de K8
Validar que las interfaces bd0 y eno6 estén en funcionamiento con dirección IP | grep eno6 e ip addr | grep bd0.
cloud-user@lab0200-smf-primary-1:~$ ip addr | grep eno6
3: eno6: <BROADCAST,MULTICAST,SECONDARY,UP,LOWER_UP> mtu 1500 qdisc mq primary bd0 state UP group default qlen 1000
cloud-user@lab0200-smf-primary-1:~$ ip addr | grep bd0
2: eno5: <BROADCAST,MULTICAST,SECONDARY,UP,LOWER_UP> mtu 1500 qdisc mq primary bd0 state UP group default qlen 1000
3: eno6: <BROADCAST,MULTICAST,SECONDARY,UP,LOWER_UP> mtu 1500 qdisc mq primary bd0 state UP group default qlen 1000
12: bd0: <BROADCAST,MULTICAST,PRIMARY,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
13: vlan111@bd0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
14: vlan112@bd0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
182: cali7a166bd093d@if4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1440 qdisc noqueue state UP group default
Validaciones de puertos desde SMI Cluster Deployer
Inicie sesión en Cluster Manager VIP y luego acceda ssh a Operations (Ops) Center ops-center-smi-cluster-deployment.
cloud-user@lab-deployer-cm-primary:~$ kubectl get svc -n smi-cm
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
cluster-files-offline-smi-cluster-deployer ClusterIP 10.102.53.184 <none> 8080/TCP 110d
iso-host-cluster-files-smi-cluster-deployer ClusterIP 10.102.38.70 172.16.1.102 80/TCP 110d
iso-host-ops-center-smi-cluster-deployer ClusterIP 10.102.83.54 172.16.1.102 3001/TCP 110d
netconf-ops-center-smi-cluster-deployer ClusterIP 10.102.196.125 10.241.206.65 3022/TCP,22/TCP 110d
ops-center-smi-cluster-deployer ClusterIP 10.102.12.170 <none> 8008/TCP,2024/TCP,2022/TCP,7681/TCP,3000/TCP,3001/TCP 110d
squid-proxy-node-port NodePort 10.102.72.168 <none> 3128:32572/TCP 110d
cloud-user@lab-deployer-cm-primary:~$ ssh -p 2024 admin@10.102.12.170
admin@10.102.12.170's password:
Welcome to the Cisco SMI Cluster Deployer on lab-deployer-cm-primary
Copyright © 2016-2020, Cisco Systems, Inc.
All rights reserved.
admin connected from 172.16.1.100 using ssh on ops-center-smi-cluster-deployer-5cdc5f94db-bnxqt
[lab-deployer-cm-primary] SMI Cluster Deployer#
Verifique el modo cluster, node-defaults, interfaces y parameters para el nodo. En el ejemplo, el lab0200-smf.
[lab-deployer-cm-primary] SMI Cluster Deployer# show running-config clusters
clusters lab0200-smf
environment lab0200-smf-deployer_1
…
node-defaults initial-boot netplan ethernets eno5
dhcp4 false
dhcp6 false
exit
node-defaults initial-boot netplan ethernets eno6
dhcp4 false
dhcp6 false
exit
node-defaults initial-boot netplan ethernets enp216s0f0
dhcp4 false
dhcp6 false
exit
node-defaults initial-boot netplan ethernets enp216s0f1
dhcp4 false
dhcp6 false
exit
node-defaults initial-boot netplan ethernets enp94s0f0
dhcp4 false
dhcp6 false
exit
node-defaults initial-boot netplan ethernets enp94s0f1
dhcp4 false
dhcp6 false
exit
node-defaults initial-boot netplan bonds bd0
dhcp4 false
dhcp6 false
optional true
interfaces [ eno5 eno6 ]
parameters mode active-backup
parameters mii-monitor-interval 100
parameters fail-over-mac-policy active
exit
En el VIP Primario, valide errores y/o caídas en las interfaces bd0 y eno6.
Cuando ambas interfaces tienen caídas, se debe comprobar el hardware del switch UCS o Leaf para detectar cualquier problema de hardware.
cloud-user@lab0200-smf-primary-1:~$ ifconfig bd0
bd0: flags=5187<UP,BROADCAST,RUNNING,PRIMARY,MULTICAST> mtu 1500
inet6 fe80::8e94:1fff:fef6:53cd prefixlen 64 scopeid 0x20<link>
ether 8c:94:1f:f6:53:cd txqueuelen 1000 (Ethernet)
RX packets 47035763777 bytes 19038286946282 (19.0 TB)
RX errors 49541 dropped 845484 overruns 0 frame 49541
TX packets 53797663096 bytes 32320571418654 (32.3 TB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
cloud-user@lab0200-smf-primary-1:~$ ifconfig eno6
eno6: flags=6211<UP,BROADCAST,RUNNING,SECONDARY,MULTICAST> mtu 1500
ether 8c:94:1f:f6:53:cd txqueuelen 1000 (Ethernet)
RX packets 47035402290 bytes 19038274391478 (19.0 TB)
RX errors 49541 dropped 845484 overruns 0 frame 49541
TX packets 53797735337 bytes 32320609021235 (32.3 TB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Identificación del servidor UCS
Validación de servidor UCS desde SMI Cluster Deployer
Ejecute show running-config clusters <cluster name> nodes <node name> en SMI Cluster Deployer para averiguar la dirección IP CIMC del servidor UCS.
[lab-deployer-cm-primary] SMI Cluster Deployer# show running-config clusters lab0200-smf nodes primary-1
clusters lab0200-smf
nodes primary-1
maintenance false
host-profile cp-data-r2-sysctl
k8s node-type primary
k8s ssh-ip 10.192.1.42
k8s sshd-bind-to-ssh-ip true
k8s node-ip 10.192.1.42
k8s node-labels smi.cisco.com/node-type oam
exit
k8s node-labels smi.cisco.com/node-type-1 proto
exit
ucs-server cimc user admin
...
ucs-server cimc ip-address 172.16.1.62
...
exit
SSH en la dirección IP CIMC 172.16.1.62 a través del CM activo y valide el nombre del servidor.
En el ejemplo, el nombre del servidor es LAB0200-Server8-02.
cloud-user@lab-deployer-cm-primary:~$ ssh admin@172.16.1.62
Warning: Permanently added '172.16.1.62' (RSA) to the list of known hosts.
admin@172.16.1.62's password:
LAB0200-Server8-02#
Asignar los puertos VIP principales y las interfaces de red UCS
En Primary VIP, verifique los nombres de la interfaz física para eno6 con el comando ls -la /sys/class/net. En el ejemplo, cuando se utiliza lscpi para identificar el dispositivo eno6, se debe utilizar el puerto 1d:00.1 para identificar eno6.
cloud-user@lab0200-smf-primary-1:~$ ls -la /sys/class/net
total 0
drwxr-xr-x 2 root root 0 Oct 12 06:18 .
drwxr-xr-x 87 root root 0 Oct 12 06:18 ..
lrwxrwxrwx 1 root root 0 Oct 12 06:18 bd0 -> ../../devices/virtual/net/bd0
lrwxrwxrwx 1 root root 0 Oct 12 06:18 bd1 -> ../../devices/virtual/net/bd1
…
lrwxrwxrwx 1 root root 0 Oct 12 06:18 eno5 -> ../../devices/pci0000:17/0000:17:00.0/0000:18:00.0/0000:19:01.0/0000:1b:00.0/0000:1c:00.0/0000:1d:00.0/net/eno5
lrwxrwxrwx 1 root root 0 Oct 12 06:18 eno6 -> ../../devices/pci0000:17/0000:17:00.0/0000:18:00.0/0000:19:01.0/0000:1b:00.0/0000:1c:00.0/0000:1d:00.1/net/eno6
En el ejemplo, el puerto 1d:00.1 pertenece a la interfaz MLOM y eno6. El eno5 es un puerto MLOM 1d:00.0.
cloud-user@lab0200-smf-primary-1:~$ lspci
……
1d:00.0 Ethernet controller: Cisco Systems Inc VIC Ethernet NIC (rev a2)
1d:00.1 Ethernet controller: Cisco Systems Inc VIC Ethernet NIC (rev a2)
3b:00.0 Ethernet controller: Intel Corporation Ethernet Controller 10G X550T (rev 01)
3b:00.1 Ethernet controller: Intel Corporation Ethernet Controller 10G X550T (rev 01)
5e:00.0 Ethernet controller: Intel Corporation Ethernet Controller XL710 for 40GbE QSFP+ (rev 02)
5e:00.1 Ethernet controller: Intel Corporation Ethernet Controller XL710 for 40GbE QSFP+ (rev 02)
d8:00.0 Ethernet controller: Intel Corporation Ethernet Controller XL710 for 40GbE QSFP+ (rev 02)
d8:00.1 Ethernet controller: Intel Corporation Ethernet Controller XL710 for 40GbE QSFP+ (rev 02)
En la GUI de CIMC, haga coincidir la dirección MAC de MLOM que se ve en la salida de ifconfig del VIP primario.
cloud-user@lab0200-smf-primary-1:~$ ifconfig bd0
bd0: flags=5187<UP,BROADCAST,RUNNING,PRIMARY,MULTICAST> mtu 1500
inet6 fe80::8e94:1fff:fef6:53cd prefixlen 64 scopeid 0x20<link>
ether 8c:94:1f:f6:53:cd txqueuelen 1000 (Ethernet)
RX packets 47035763777 bytes 19038286946282 (19.0 TB)
RX errors 49541 dropped 845484 overruns 0 frame 49541
TX packets 53797663096 bytes 32320571418654 (32.3 TB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
cloud-user@lab0200-smf-primary-1:~$ ifconfig eno6
eno6: flags=6211<UP,BROADCAST,RUNNING,SECONDARY,MULTICAST> mtu 1500
ether 8c:94:1f:f6:53:cd txqueuelen 1000 (Ethernet)
RX packets 47035402290 bytes 19038274391478 (19.0 TB)
RX errors 49541 dropped 845484 overruns 0 frame 49541
TX packets 53797735337 bytes 32320609021235 (32.3 TB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Identificación del switch de hoja
En la red del Administrador de clústeres, como se muestra en la imagen, la MLOM (eno5/eno6) se conecta a las hojas 1 y 2.
Inicie sesión en Leaves y escriba el nombre del servidor.
En el ejemplo, las interfaces LAB0200-Server8-02 MLOM y MLOM están conectadas a las interfaces Eth1/49 en Leaf1 y Leaf2.
Leaf1# sh int description | inc LAB0200-Server8-02
Eth1/10 eth 40G PCIE-01-2-LAB0200-Server8-02
Eth1/30 eth 40G PCIE-02-2-LAB0200-Server8-02
Eth1/49 eth 40G LAB0200-Server8-02 MLOM-P2
Leaf2# sh int description | inc LAB0200-Server8-02
Eth1/10 eth 40G PCIE-01-1-LAB0200-Server8-02
Eth1/30 eth 40G PCIE-02-1-LAB0200-Server8-02
Eth1/49 eth 40G LAB0200-Server8-02 MLOM-P1
Solución
En el escenario, el problema está relacionado con la falla del link en Leaf1 int eth1/49 que está conectado con LAB0200-Server8-02 MLOM eno6.
El servidor UCS se ha validado y no se ha encontrado ningún problema de hardware. La MLOM y los puertos se encontraban en buen estado.
Leaf1 mostró errores de salida TX:
Leaf1# sh int Eth1/49
Ethernet1/49 is up
admin state is up, Dedicated Interface
Hardware: 10000/40000/100000 Ethernet, address: e8eb.3437.48ca (bia e8eb.3437.48ca)
Description: LAB0200-Server8-02 MLOM-P2
MTU 9216 bytes, BW 40000000 Kbit , DLY 10 usec
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, medium is broadcast
Port mode is trunk
full-duplex, 40 Gb/s, media type is 40G
Beacon is turned off
Auto-Negotiation is turned on FEC mode is Auto
Input flow-control is off, output flow-control is off
Auto-mdix is turned off
Rate mode is dedicated
Switchport monitor is off
EtherType is 0x8100
EEE (efficient-ethernet) : n/a
admin fec state is auto, oper fec state is off
Last link flapped 5week(s) 6day(s)
Last clearing of "show interface" counters never
12 interface resets
Load-Interval #1: 30 seconds
30 seconds input rate 162942488 bits/sec, 26648 packets/sec
30 seconds output rate 35757024 bits/sec, 16477 packets/sec
input rate 162.94 Mbps, 26.65 Kpps; output rate 35.76 Mbps, 16.48 Kpps
Load-Interval #2: 5 minute (300 seconds)
300 seconds input rate 120872496 bits/sec, 22926 packets/sec
300 seconds output rate 54245920 bits/sec, 17880 packets/sec
input rate 120.87 Mbps, 22.93 Kpps; output rate 54.24 Mbps, 17.88 Kpps
RX
85973263325 unicast packets 6318912 multicast packets 55152 broadcast packets
85979637389 input packets 50020924423841 bytes
230406880 jumbo packets 0 storm suppression bytes
0 runts 0 giants 0 CRC 0 no buffer
0 input error 0 short frame 0 overrun 0 underrun 0 ignored
0 watchdog 0 bad etype drop 0 bad proto drop 0 if down drop
0 input with dribble 0 input discard
0 Rx pause
TX
76542979816 unicast packets 88726302 multicast packets 789768 broadcast packets
76632574981 output packets 29932747104403 bytes
3089287610 jumbo packets
79095 output error 0 collision 0 deferred 0 late collision
0 lost carrier 0 no carrier 0 babble 0 output discard
0 Tx pause
La alerta "network-receive-error" se resolvió con el reemplazo de cable en int eth1/49 Leaf1.
La última falla de link de interfaz fue informada justo antes del reemplazo del cable.
2021 Nov 17 07:36:48 TPLF0201 %BFD-5-SESSION_STATE_DOWN: BFD session 1090519112 to neighbor 10.22.101.1 on interface Vlan2201 has gone down. Reason: Control
Detection Time Expired.
2021 Nov 17 07:37:30 TPLF0201 %BFD-5-SESSION_STATE_DOWN: BFD session 1090519107 to neighbor 10.22.101.2 on interface Vlan2201 has gone down. Reason: Control
Detection Time Expired.
2021 Nov 18 05:09:12 TPLF0201 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet1/48 is down (Link failure)
Las alertas se borran en eno6/bd0 de labceed22 después del reemplazo del cable.
[lab0200-smf/labceed22] cee# show alerts active summary
NAME UID SEVERITY STARTS AT SOURCE SUMMARY
---------------------------------------------------------------------------------------------------------------------------------------------------------
watchdog a62f59201ba8 minor 11-02T05:57:18 System This is an alert meant to ensure that the entire alerting pipeline is functional. This ale...
Historial de revisiones
| Revisión | Fecha de publicación | Comentarios |
|---|---|---|
1.0 |
28-Mar-2022 |
Versión inicial |
ComentariosContacte a Cisco
- Abrir un caso de soporte
- (Requiere un Cisco Service Contract)