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New Member

dell vrtx switch port channel to cisco fex 2248

i have a dell vrtx chassis built in 8 port switch that i have cabled 4 ports to a cisco fex tp.

on the 4 ports on the vrtx switch i have it like this

interface gigabitethernet0/1

shutdown

spanning-tree disable

channel-group 1 mode auto

!

interface gigabitethernet0/2

shutdown

spanning-tree disable

channel-group 1 mode auto

!

interface gigabitethernet0/3

shutdown

spanning-tree disable

channel-group 1 mode auto

!

interface gigabitethernet0/4

shutdown

spanning-tree disable

channel-group 1 mode auto

!

---------------------------------------------------------------------------

how do i configure the cisco side of the port channel?

right now the port config is

interface Ethernet101/1/19

  switchport access vlan 50

  spanning-tree port-priority 128

  spanning-tree port type edge

  no shutdown

interface Ethernet101/1/21

  switchport access vlan 50

  spanning-tree port type edge

interface Ethernet101/1/22

  switchport access vlan 50

  spanning-tree port type edge

  no shutdown

interface Ethernet101/1/24

  switchport access vlan 50

  spanning-tree port type edge

  no shutdown

the fex is connect via port channel o a nexus 7k

6 REPLIES
VIP Super Bronze

dell vrtx switch port channel to cisco fex 2248

Not familiar with Dell switches, but it appears that you are connecting a switch to a FEX.  FEX ports are designed to be connected to end devices such as servers, workstations, printers, etc.. and not to other switches.  So, I see two options.  1-Don't use the Dell switch and directly connect the servers to the FEX  2-Connect the Dell switch directly to the 7ks using VPC.

HTH

Cisco Employee

dell vrtx switch port channel to cisco fex 2248

Hello,

"The Cisco Nexus 2148T fabric extender does not support EtherChannels on its host interfaces. Therefore a maximum of two links can be configured in an EtherChannel from the server where each link is connected to a separate Fabric Extender. " (c)

http://www.cisco.com/en/US/docs/switches/datacenter/nexus5500/sw/interfaces/6x/b_5500_Interfaces_Config_Guide_Release_602N12_chapter_0100.pdf

The other thing is STP. If you need to SPAN STP down through the Dell switch you can also create a L2 loop easily. So this should be very carefully considered.

I would vote for Reza's suggestion of connecting Dell switch directly to N7k.

Niko

New Member

dell vrtx switch port channel to cisco fex 2248

hi

do you mean that the fex 2148 will not support any etherchannels from other switches?

Cisco Employee

dell vrtx switch port channel to cisco fex 2248

Hello,

On host interfaces it does not.

Niko

New Member

i heard you can connect a

i heard you can connect a switch the the fex 2248 but need to use fex links. Is that true?

 

how do you configure this?

New Member

How do I configure the nexus

How do I configure the nexus 7k to attach the dell switch module to it? I don't want to cause a stp loop
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