Posts Tagged ‘vlans’

Multitenancy on Dell Networking Switches via VRF-lite

Wednesday, October 29th, 2014

Check out the Dell Networking: Multitenancy with VRF-lite white paper. I describe in detail how multitenency can be achieved on supported Dell Networking switches via Virtual Routing and Forwarding (VRF). VRF-lite supports multitenancy by allowing multiple different routing tables within one physical L3 switch/router. This allows for a multitenant network without having to buy additional hardware. In the diagram directly below, each color represents a different customer tenant utilizing the same IP address space (overlapping IP addresses). Such a setup can also be useful for development and testing where traffic isolation is needed; the overlapping IP addresses can be used for ensuring consistency between each development/test environment. (more…)


LACP and Trunking Between Brocade FOS and Dell FTOS Switches

Saturday, January 18th, 2014

In this short lab I’ll demonstrate creating a LACP LAG and trunking between Brocade switches running FOS and Dell switches running FTOS. I utilize two Brocade 8000 switches [FOS 6.3], one Dell S60 switch [FTOS], and one Dell PowerEdge 2950 server with a QLogic QLE8242 CNA. Below is the network diagram for this lab. (more…)


Dell Force10 Z9000 – Creating Additional Layer 2 Isolation via Private VLANs

Saturday, July 7th, 2012

Private VLANs provide additional segregation capabilities within a VLAN. A private VLAN provides further layer 2 isolation between ports. A common example of private VLAN use is a hotel providing Internet access for patrons while at the same time preventing direct access between guest ports. Instead of using private VLANs, you can create a separate VLAN and assign a separate IP subnet to each guest as shown below. (more…)


802.1Q Trunking Between Cisco and Dell Force10 Switches

Monday, July 2nd, 2012

VOIP PhonesIn this lab I use a Dell Force10 S25P switch [FTOS] and a Cisco C3750 switch [IOS 12.2(25)SEE3] to demonstrate 802.1Q trunking. (more…)