05-26-2024 04:40 AM
Hi everyone,
I've a question about monitoring interface vlan traffic in nexus 9k.In nexus 9k does't count the interface vlan traffic by default and need to apply commad below:
hardware profile svi-and-ai flex-stats-enable
but this command needs to disable VxLAN and MPLS feature so how can I monitor SVI traffic when I have VxLAN enabled?
Thanks in advance
05-26-2024 06:44 AM
To monitor interface VLAN (SVI) traffic on a Nexus 9000 switch while VxLAN is enabled, you indeed face the limitation where enabling the flexible statistics (with the hardware profile svi-and-ai flex-stats-enable command) requires disabling VxLAN and MPLS. However, there are alternative methods to monitor SVI traffic without disabling these features:
Using Ingress and Egress Policies: You can use ACLs (Access Control Lists) to capture and count traffic. Although this method doesn't give a direct count of all traffic through the SVI, it can be useful for monitoring specific types of traffic.
Example:
NetFlow: NetFlow can be used to monitor and analyze traffic flows through the switch, including SVI traffic. It provides detailed information about traffic patterns and can be used for traffic accounting and monitoring.
Example:
SNMP: SNMP (Simple Network Management Protocol) can be used to poll interface statistics, including SVIs. While this method might not provide as granular traffic statistics as flexible stats, it can still be used for basic traffic monitoring.
Example:
SPAN/RSPAN/ERSPAN: You can use SPAN (Switch Port Analyzer), RSPAN (Remote SPAN), or ERSPAN (Encapsulated RSPAN) to monitor the traffic on SVI interfaces by mirroring the traffic to another port or an IP destination.
Example:
While the hardware profile svi-and-ai flex-stats-enable command cannot be used with VxLAN enabled, the above methods provide alternative ways to monitor SVI traffic. Each method has its own strengths and can be chosen based on the specific monitoring requirements and network setup.
05-26-2024 07:03 AM
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