N7K Hashing Algorithm

[ar]

Hi,

Anyone knows the Nexus hashing algorithm for the following:

1. Etherchannel hashing alrogorithm of Nexus 7000 particularly linecard N7K-M108X2-12L?

2. Equal cost multipath hashing?

[Mandlenkosi Nkiwane]

Don't know if this will help:

Cisco Nexus 7000 vPC Load-Balancing Options

vPC(config)#port-channel load-balance ethernet ?

dest-ip-port Destination IP address and L4 port

dest-ip-port-vlan Destination IP address, L4 port and VLAN

destination-ip-vlan Destination IP address and VLAN

destination-mac Destination MAC address

destination-port Destination L4 port

source-dest-ip-port Source & Destination IP address and L4 port

source-dest-ip-port-vlan Source & Destination IP address, L4 port and VLAN

source-dest-ip-vlan Source & Destination IP address and VLAN

source-dest-mac Source & Destination MAC address

source-dest-port Source & Destination L4 port

source-ip-port Source IP address and L4 port

source-ip-port-vlan Source IP address, L4 port and VLAN

source-ip-vlan Source IP address and VLAN

source-mac Source MAC address

source-port Source L4 port

src-ip Src IP Addr

src-mac Src Mac Addr

src-mixed-ip-port Src IP Addr and TCP/UDP Port

src-port Src TCP/UDP Port

I don't know what the default would be but I guess this will be a good start for you....

[ar]

Thanks

What if Im using just a single N7K? No VPC?

I believe you can just add L4 to the hashing.

Catch is, my destination IP will be a single VIP of the application.

So more or less, it will eat up a single link.

I'm thinking of using L3 ECMP instead if it might give a better hashing than etherchannel bundles.