N7K-M132XP-12: can we make it over subscribe 1:2 or 1:3 for two or three connected ports in port group

[jbhanderi671]

Nexus 7000 blade N7K-M132XP-12 question :   I know the oversubscribe ratio on this module is 4:1, if we used in  share mode and 1:1 for dedicated mode.    But when I use only two or three ports out of four ports in port group. It means my oversubscribe ratio is 1:2 and 1:3 respectively for that port group is thats correct ??

[canero]

Hi jignesh,
Dedicated mode prevents other pprts to be used only allows one port to be used,
i think for shared mode the oversubacription ratio should be per module, not per port group,
Hope this helps
Best regards

Sent from Cisco Technical Support iPhone App

[jbhanderi671]

It means is cap base on backplan switching capacity of n7k module which is [80G], not exactly on port group of 4 ports.

To confirm senario one more time, If i have a 16 ports connected to that module[32 port-10G] in any port group fashion, i can tx/rx 80G traffic and if i do load sharing than 5G per port ..!! ?

Thank you.

--Jignesh

[Steve Fuller]

Hi,

The ports (1,3,5,7), (2,4,6,8) etc., are connected through a port ASIC which has a 10Gbps connection towards the fabric. That will mean that if you're using only two of the four ports in a group you will have 2:1 over-subscription on the port ASIC connection.

Regards

Sent from Cisco Technical Support iPhone App