Thanks for the updated information, this really confirms that the trouble is with the connection to the Cisco switch. Have we tried a general connection yet, instead of Trunk?   console(config-if)# switchport mode general console(config-if)# switchport general allowed vlan add 300-320 tagged console(config-if)# switchport general pvid 301 console(config-if)# end   Are we certain that the IP address for VLAN 301 is 10.49.56.0? This does not seem right. When we are attempting pings across the Trunk/General connection to the Cisco switch, please make sure the servers have the default gateway set to the IP address of the VLAN they are in access mode for. So when in access mode for VLAN 301 the server default gateway would need to be 10.49.56.0. I would double check that IP address though.
Hi Can anyone help me with best practice in connecting R710's via a stacked M6348 to a cisco network. Our configuration is as follows M1000e 2 x 1GB Passthrough in the A Fabric 2 x M6348's cabled in a stack in the B Fabric 6 x R710's with Quad-port Nics in the B Fabric (3 are general purpose servers, 3 are Hyper-V Servers in a cluster)   Cisco Network Mostly Cisco 3560 switches 20 VLANS (1 per building) configured, mostly for traffic isolation (VLAN 300 - 320)   What (I think) we want to do Connect the M6348's to the core network in a LAG (4 x 1 GB ports. Can this be split 2 ports from each of the stacked M6348's?) Have a straight mapping for R710 1 - 3 to VLAN 301 Configure R710 4 - 6 to access all VLAN's so the Hyper-V guests can be placed on the correct VLAN Use Fabric A for connection to the SAN Network   Out network management is done by a third party (we are unable to change this) and they claim they are unable to connect Cisco/Dell! We are server guys, not network guys, so something idiot proof (especially for the Cisco to give to our management company) would be appreciated. We have tried configuring the switches in Simple mode, using a Deployment guide from Dell, but all we seem to get is the default VLAN to every port on switch 1 of the stack, but no other VLANs and no ports active on switch 2 in the stack. I have probably missed lost of info out and haven't been very clear, so if any more info is needed, please get back to me. Thanks in advance for the help Rich    
Help with connecting M6348 to a Cisco Network