This event is an opportunity to have your questions answered on tools available for Nexus 3000 and 9000 Series device/network performance monitoring. Michal will cover usage, configuration, output analysis of available CLI features such as iCAM, telemetry, Catena, PLB, latency monitoring, and more.
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Ask questions from Monday 7th to Friday 18th of December, 2020
Context - peer gateway , vPC peer link & Inter vlan traffic
I have back to back vPC setup in the lab using VIRL images.
In the absence of peer gateway, nxs95K-0x (topology attached) allows inter vlan traffic via peer link.
If I'm not misunderstood, peer gateway has no role to play in a healthy vPC setup. Typically a peer gateway plays a role in the failure scenario.
Could you please elaborate even in the normal scenario to prevent the inter vlan traffic via the peer link we need peer gateway configured ?
Let me clarify on few points of your question:
1. The peer-gateway feature will play a role when the VPC switch is performing routing. It will not make much difference if the device is just L2
2. Peer-gateway does also play a role in healthy vPC setup (meaning both peers fully operational).
What peer-gateway generally does - is to allow Nexus to route the frames destined to MAC address of its VPC peer.
You can find the VPC peer-gateway feature described very well eg. here:
That is correct. Starting from 9.3(x) the PLB feature is deprecated.
Its functionality is now replaced by ITD.
While trying to enable PLB feature with 9.3(x) you will now be presented with the following error message:
switch(config)# feature plb
Error : Feature PLB is deprecated. Please use ITD (feature itd)
From the configuration perspective most of the commands which have “plb” are replaced with “idt” and maintained the same functionality.