Most CNAs will filter out FCoE traffic at the hardware level and send it to the storage functions in the chip. That's why the Ethernet function, even in promiscuous mode, cannot see the FCoE traffic. Wireshark has no problem showing FCoE traffic.
Sometimes the CAN chip has a feature where it can copy the FCoE traffic to the Ethernet side also (probably with a performance panelty). I don't know if Qlogic chip offers it. Maybe someone from Qlogic can respond and if there is such a functionality then also tell how to enable it. Sumit -----Original Message----- From: storage-discuss-boun...@opensolaris.org [mailto:storage-discuss-boun...@opensolaris.org] On Behalf Of prthap chandran Sent: Tuesday, August 03, 2010 2:00 AM To: storage-discuss@opensolaris.org Subject: [storage-discuss] Capturing fcoe traffic Hi, We have a topology where a linux box with Qlogic CNA(the linux box has two more Intel ethernet NIC cards) connected to a FCoE capable switch which is based on linux kernel. I would like to capture the FCoE packets traversing from Initiator(linux box) to the FCoE capable switch. When I tried to use wireshark, we could see see only the ethernet NICs listed out for capturing traffic in the wireshark window and not CNA adapter. Is there any additional configuration that I need to enable to capture the traffic through CNA adapter in wireshark or Is wireshark cannot be used for capturing traffic through CNA adapter, if so what else traffic analyser that I can use to capture the FCoE traffic from CNA adapter. Thanks, Prathap V _______________________________________________ storage-discuss mailing list storage-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/storage-discuss _______________________________________________ storage-discuss mailing list storage-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/storage-discuss
