Connect 2 9500 switches - no stacking cable.

[gavinr98]

I have 2 9500 switches and I am trying to connect the 2 together without a stacking cable. I have a 100GB QSFP cable connected to port 32 on each switch, I have a link light between the 2 connections, but I cannot ping from one switch to the other. Does anyone know if there is a specific configuration I would need to this to work? I already have both ports configured as a trunk.

[Flavio Miranda]

Hi

 show int status on those ports show what?

[gavinr98]

I think I figured it out. Looks like I need to use Stackwise Virtual to connect them.

[Flavio Miranda]

If you want to turn both in one switch yes, you need stack. I though you were trying to make them communicate via trunk link.

[gavinr98]

Yes, that is the preferred way I want to do it, hopefully without stacking. The ports were both showing as up, but could not ping the IP of the other device.

[Flavio Miranda]

 If the ports are up, all you need to do is setup interface vlan and put them in the same network

Sw1

vlan 10

name transit

int vlan 10

ip add 10.10.10.1 255.255.255.0

no shutdown

Sw2

vlan 10

name transit

int vlan 10

ip add 10.10.10.2 255.255.255.0

no shutdown

end

wr

Thats it.

[Karsten Iwen]

You say that you can't ping. But you don't say how you configured the devices and from where to where you are pinging. And be aware that the IPs that you are configuring under Gigi0/0 are in a different VRF.

[gavinr98]

I configured Vlan1 with an IP on both switches and this is the configuration that I have on each switch port.

switchport trunk allowed vlan 1,2,5
switchport mode trunk
channel-group 1 mode active

[gavinr98]

I was able to get the 2 switches connected by the trunk. I do have another question. We are going to be connecting several 9300's to the 2 9500 switches using the QSFP ports (2 port QSFP) and I want 1 port going to each switch for redundancy, my questions is, if we are going to uplink 1 port to each switch, can this cause a loop?