Posted on January 9, 2021 7:14 am
 |  Asked by Jose Villablanca
 |  48 views
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Is it necessary  apply a queue profile on the physical interfaces or it is possible to apply it on the logical interfaces when i have a port channel.

Thanks a lot.

 

 

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Answered on January 9, 2021 7:22 am

Hi Jose,

Thanks for reaching out.

We can apply queue profile only on Ethernet(physical) interfaces and this option is not enabled/available for Logical interfaces(port-channels/SVI's).

I have tested this in lab and when I tried to configure PFC(Priority-Flow-control) under Ethernet interfaces it is working fine.However when I tried configuring under port-channel interface it is getting applied globally for all interfaces and not for particular port-channel interface.

Below are the configs and test results from lab:

switch(config)#sh run sec priority
platform trident mmu queue profile test    -->queue profile test has been configured
ingress priority-group 4 reserved 208
ingress priority-group 4 threshold 1/8
!
interface Ethernet1             -->PFC config applied under ethernet interface is working fine
channel-group 1 mode on
priority-flow-control mode on
priority-flow-control priority 4 no-drop

switch(config)#int po1
switch(config-if-Po1)#priority-flow-control ?   -->Tried applying under port-channel and below are the 2 options available
all           Configure PFC for all interfaces
priority  Configure PFC priorities to be honored

switch(config-if-Po1)#priority-flow-control all mode off    --->As soon as I entered this command it had exited from port-channel interface and config got applied globally.same applies for priority option as well.
switch(config)#show run sec priority

priority-flow-control all mode off        --->config got applied globally and not for port-channel1
priority-flow-control priority default 3

Hence we cannot apply queue profile on Logical interfaces and it works fine only for Ethernet interfaces.

Thanks,

Bhavana.

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Posted by Marc Cox
Answered on January 12, 2021 7:29 am

This is my settings: vlan 10 name temp_10 ! interface Port-Channel10 switchport access vlan 10 switchport ... Can I configure VARP on port-channel subinterface of two 7500E switch? Can I apply a queue profile in a port-channel interface.

 

 

<a href="https://www.omegle.run/">Omegle</a>

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Answered on January 12, 2021 10:35 am

Hi Marc,

Thanks for reaching out.

a)VARP can only be configured on an SVI(vlan interface) and is not configured/assigned to a port-channel interface/sub-interface.

You can refer to the below link for more details regarding VARP config and usecase:

https://www.arista.com/zh/um-eos/eos-varp#xx1152193

Virtual-ARP (VARP) allows multiple switches to simultaneously route packets from a common IP address in an active-active router configuration. Each switch is configured with the same set of virtual IP addresses on corresponding VLAN interfaces and a common virtual MAC address.A maximum of 500 virtual IP addresses can be assigned to a VLAN interface.

b)Regarding "queue profile in a port-channel interface" --->We can apply queue profile only on Ethernet(physical) interfaces and this option is not enabled/available for Logical interfaces(port-channels/SVI's).You can refer to my previous discussion for detailed explanation in this same EOSC thread.

 

Thanks,

Bhavana.

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