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N1K & UCS-B

danilo-dicesare
Beginner
Beginner

Hi all,

i've got UCS blade with n1k as dDVS with a channel mac pinning.

Now i want to force all vMotion IFC to have preference for UCS fabric A so that vMotion traffic dosn't go outside UCS.

may i do it in  a port-profile (vMotion one) or do i have do do it in vEthernet interface created by n1k?

tnx

/danilo

1 Accepted Solution

Accepted Solutions

Daniel Laden
Enthusiast
Enthusiast

N1K allows for pin preferencing in  the vethernet port profiile.  As of version 1.4a and later you can now  set the "order" of failover sub groups.

Ex.    Let's say you want to do some traffic engineering and keep your  Service  Console/Management traffic & Vmotion traffic pinned to  separate  uplinks.  We know we can use sticky pinning to force these  virtual  interfaces to separate sub group uplink interface, but what  happens when  there is a failure with one of these links?  Previously,  when a sub  group member failed with pinned interfaces it would be  dynamically  re-pinned in a round-robin fashion to the remaining  operational  members.  New functionality was added to force the order of  which backup  sub groups will be utilized.

To   specify multiple sub-groups for failover you can use the following   pinning command in either the vEth interface or Port profile level.

1000v(config-if) pinning id backup

So let's say we had four uplink vmnics 0 through 3.  We'd like to keep our management and vmotion traffic separated if possilbe.

vmnic0 = subgroup ID 0 (primary for management)

vmnic1 = subgroup ID 1 (secondary for mangement, tertiary for vmotion)

vmnic2 = subgroup ID 2 (secondary for vmotion, tertiary for management)

vmnic3 = subgroup ID 3 (primary for vmotion)

Our port profiles might look like this.

port-profile type ethernet system-uplink

  vmware port-group

  switchport trunk allowed vlan 1-3967,4048-4093

  switchport mode trunk

  channel-group auto mode on mac-pinning

  no shutdown

  system vlan 10, 3001-3002

  state enabled

port-profile type vethernet management

  vmware port-group

  no shutdown

  switchport mode access

  switchport access vlan 10

  system vlan 10

  state enabled

  pinning id 0 backup 1 2

port-profile type vethernet vmotion

  vmware port-group

  no shutdown

  switchport mode access

  switchport access vlan 99

  state enabled

  pinning id 3 backup 2 1

Thank You,

Dan Laden

Cisco PDI Data Center

Want to know more about how PDI can assist you?

http://www.youtube.com/watch?v=4BebSCuxcQU&list=PL88EB353557455BD7

http://www.cisco.com/go/pdihelpdesk

View solution in original post

1 Reply 1

Daniel Laden
Enthusiast
Enthusiast

N1K allows for pin preferencing in  the vethernet port profiile.  As of version 1.4a and later you can now  set the "order" of failover sub groups.

Ex.    Let's say you want to do some traffic engineering and keep your  Service  Console/Management traffic & Vmotion traffic pinned to  separate  uplinks.  We know we can use sticky pinning to force these  virtual  interfaces to separate sub group uplink interface, but what  happens when  there is a failure with one of these links?  Previously,  when a sub  group member failed with pinned interfaces it would be  dynamically  re-pinned in a round-robin fashion to the remaining  operational  members.  New functionality was added to force the order of  which backup  sub groups will be utilized.

To   specify multiple sub-groups for failover you can use the following   pinning command in either the vEth interface or Port profile level.

1000v(config-if) pinning id backup

So let's say we had four uplink vmnics 0 through 3.  We'd like to keep our management and vmotion traffic separated if possilbe.

vmnic0 = subgroup ID 0 (primary for management)

vmnic1 = subgroup ID 1 (secondary for mangement, tertiary for vmotion)

vmnic2 = subgroup ID 2 (secondary for vmotion, tertiary for management)

vmnic3 = subgroup ID 3 (primary for vmotion)

Our port profiles might look like this.

port-profile type ethernet system-uplink

  vmware port-group

  switchport trunk allowed vlan 1-3967,4048-4093

  switchport mode trunk

  channel-group auto mode on mac-pinning

  no shutdown

  system vlan 10, 3001-3002

  state enabled

port-profile type vethernet management

  vmware port-group

  no shutdown

  switchport mode access

  switchport access vlan 10

  system vlan 10

  state enabled

  pinning id 0 backup 1 2

port-profile type vethernet vmotion

  vmware port-group

  no shutdown

  switchport mode access

  switchport access vlan 99

  state enabled

  pinning id 3 backup 2 1

Thank You,

Dan Laden

Cisco PDI Data Center

Want to know more about how PDI can assist you?

http://www.youtube.com/watch?v=4BebSCuxcQU&list=PL88EB353557455BD7

http://www.cisco.com/go/pdihelpdesk

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