Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
ar
New Member

Nexus 2K FEX dual-homed to two Nexus 5K Configuration

Hi.

I am trying to look for Nexus 5K config when the nexus2K FEX is dual-homed into it.

What will be the configuration on both 5K especiall the pinning?

Assuming one N2K 10G port is connected to N5K-1 and another N2K 10G port connected to N5K-2?

N5Ks are also configured as dual-sided vpc with two N7K.

thanks

Everyone's tags (6)
2 ACCEPTED SOLUTIONS

Accepted Solutions
Cisco Employee

Re: Nexus 2K FEX dual-homed to two Nexus 5K Configuration

Assuming interface E1/7 is connected to the N2K on both N5Ks:

interface e1/7

  channel-group 100

interface po 100

  swithcport mode fex

  fex association 100

  vpc 100

For the host interface, the same port needs to be configured on both N5Ks.

N5K-1

interface e100/1/1

  switchport access vlan 123

N5K-2

interface e100/1/1

  switchport access vlan 123

HTH,

jerry

New Member

Nexus 2K FEX dual-homed to two Nexus 5K Configuration

N5k-1 ====vpc peer==== N5k-2

\  E1/10                     E1/10  /

\                                        /

  \                                      /

   \                                    / 

    \                                  /

     \                                / 

      \      Fex-100           /

N5k-1 & N5k-2 config:

===============

Interface po100

switchport mode fex-fabric

fex associat 100

vpc 100

int e1/10

switchport mode fex-fabric

channel-group 100

5 REPLIES
Cisco Employee

Nexus 2K FEX dual-homed to two Nexus 5K Configuration

No pinning is needed if you want all traffic to load balanced between the fabric interfaces. Default setting is fine.

Regards,

jerry

ar
New Member

Nexus 2K FEX dual-homed to two Nexus 5K Configuration

I am looking at the topology below:

Since the N2K is dual homed, which ports will be assigned to N5K-1 and which ports to N5K-2?

New Member

Nexus 2K FEX dual-homed to two Nexus 5K Configuration

Hi Allan,

What is the code that you are running on the N5K.

If you have NXOS 5.3(1)N1 or above you could make use of enhanced vPC. In this case the servers could be connected to a single FEX or two with NIC1 in FEX1 and NIC2 in FEX2. You have more deployment options.

Regards

Cisco Employee

Re: Nexus 2K FEX dual-homed to two Nexus 5K Configuration

Assuming interface E1/7 is connected to the N2K on both N5Ks:

interface e1/7

  channel-group 100

interface po 100

  swithcport mode fex

  fex association 100

  vpc 100

For the host interface, the same port needs to be configured on both N5Ks.

N5K-1

interface e100/1/1

  switchport access vlan 123

N5K-2

interface e100/1/1

  switchport access vlan 123

HTH,

jerry

New Member

Nexus 2K FEX dual-homed to two Nexus 5K Configuration

N5k-1 ====vpc peer==== N5k-2

\  E1/10                     E1/10  /

\                                        /

  \                                      /

   \                                    / 

    \                                  /

     \                                / 

      \      Fex-100           /

N5k-1 & N5k-2 config:

===============

Interface po100

switchport mode fex-fabric

fex associat 100

vpc 100

int e1/10

switchport mode fex-fabric

channel-group 100

11980
Views
0
Helpful
5
Replies
CreatePlease to create content