Hi All,
I'm still confuse about load balancing mechanism on fcoe of storage vdc Nexus 7000. By default the vsan will load balance based on src dst oxid.
From the cisco configuration example http://www.cisco.com/en/US/products/ps9670/products_configuration_example09186a0080c13d2f.shtml
On Nexus 7K, the document stated to configured the port-channel load balance method on the storage vdc itself. As I know that the port-channel method can only be changed on the vdc default.
As the document stated below :
In order to configure the Ethernet interface as trunk and enable the FCoE VLAN on the trunk, enter:
fcoe(config)# interface eth1/31-32
fcoe(config-if)# channel-group 2 force mode active
fcoe(config-if)# int port-channel 2
fcoe(config-if)# switchport mode trunk
fcoe(config-if)# switchport trunk allowed vlan 2
fcoe(config-if)# no shut
fcoe(config)# port-channel load-balance ethernet source-dest-port ---> I think we can't change the port-channel load balance method on the storage vdc. This configuration automatically loaded on the vdc storage or the configuration was done on vdc default ?
On the Nexus 5k, the document explain clearly about the load balance of fcoe on Nexus 5k
In order to configure the Ethernet interface as a trunk and to enable the FCoE VLAN on the trunk, enter:
AwesomeN5k(config)# interface eth1/47-48
AwesomeN5k(config-if)# channel-group 2 mode active
AwesomeN5k(config-if)# int channel-group 2
AwesomeN5k(config-if)# switchport mode trunk
AwesomeN5k(config-if)# switchport trunk allowed vlan 2
AwesomeN5k(config-if)# no shut
AwesomeN5k)config)# port-channel load-balance ethernet source-dest-port <-- Default is src/dst mac. This way, only one link will be utilized, which is why we change it to src/dst port.
In this document http://www.cisco.com/en/US/docs/switches/datacenter/sw/nx-os/fcoe/configuration/guide/b_Cisco_NX-OS_FCoE_Configuration_Guide_chapter_0100.html#concept_013970837994428BB207A1A79DBFA22A, it stated that :
VE Port
A virtual expansion (VE) port acts as an expansion port in an FCoE network. VE ports can connect multiple FCoE switches together in the network. You can bind a VE port to a physical ethernet port or a port channel.
Traffic is load balanced across equal cost E_Ports and VE_Ports based on SID, DID, and OXID. Traffic across members of a port channel that a VE_Port is bound to is load balanced based on SID, DID, and OXID.
My question :
Based on the two documents above, does the storage vdc use port-channel load balance src-dst-port automatically or we still need to configure the port-channel load balance src-dst-l4port on the vdc default to achieve the full utilization of Port Channel link of FCoE traffic while vfc bind to the LACP port-channel ?
Thanks