Hi, Please see inline. Thanks, john > -----Original Message----- > From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Thomas F Herbert > Sent: Tuesday, October 18, 2016 1:35 PM > To: d...@dpdk.org > Cc: Keith Burns <alaga...@gmail.com>; Edward Warnicke > <hagb...@gmail.com>; opnfv-tech-discuss@lists.opnfv.org > Subject: [dpdk-dev] [opnfv-tech-discuss][apex][ovsnfv]Problem showed up > with OVS/DPDK with Cisco VIC adapter > > All: > > This is not necessarily related to VPP but rather to OVS/DPDK. > In OPNFV we found the following problem when using UCS NIC. > The UCS fabric seems to set a VLAN tag on untagged packets. > Any thoughts from DPDK and VPP folks would be appreciated. > In a UCS fabric, all frames between the VIC and the Fabric Interconnect will be tagged. This is required to carry both VLAN information and, being a converged adapter supporting both Ethernet and FCoE, traffic class. For non-UCS fabric deployments, there is currently no way to turn off egress priority tagging on the VIC adapter. If a packet being sent from DPDK to the enic PMD is priority tagged (VLAN=0) or has no VLAN tag, the default VLAN tag (as set up in CIMC/UCSM manager) will be inserted. This should only be an issue with C-series UCS servers connected point to point or through a switch that can't cope with priority tags. Is that the case here?
> ... > -- > *Thomas F Herbert* > SDN Group > Office of Technology > *Red Hat* _______________________________________________ opnfv-tech-discuss mailing list opnfv-tech-discuss@lists.opnfv.org https://lists.opnfv.org/mailman/listinfo/opnfv-tech-discuss
