Wireshark support for infiniband

If, on whatever operating system you're running libpcap supports capturing on Infiniband (which may just mean "if whatever the native capture mechanism libpcap uses supports capturing on Infiniband" plus "libpcap knows about the native link-layer type value for Infiniband captures and knows a DLT_ value to which it can map it), and if you're using a version of Wireshark that supports the link-layer type value used by libpcap for Infiniband, then Wireshark and TShark will support Infiniband packet capturing.

Currently, the list of link-layer header types for libpcap/WinPcap and for pcap and pcap-ng capture files includes two link-layer header types for Infiniband:

• LINKTYPE_IPOIB/DLT_IPOIB, for IP-over-Infiniband frames, as specified by RFC 4391 section 6;
• LINKTYPE_INFINIBAND/DLT_INFINIBAND, for raw Infiniband frames, starting with the Local Routing Header, as specified in Chapter 5 "Data packet format" of InfiniBand™ Architectural Specification Release 1.2.1 Volume 1 - General Specifications.

On Solaris prior to Solaris 11, libpcap (which I think you'd have to install yourself) uses DLPI to capture traffic; libpcap doesn't support capturing Infiniband traffic using DLPI, so, even if Solaris prior to Solaris 11 supports capturing Infiniband traffic using DLPI, you'd have to hack libpcap to use it. If snoop can capture Infiniband traffic on some pre-Solaris 11 version of Solaris, then:

1. DLPI presumably supports capturing Infiniband traffic on that version of Solaris, so libpcap could presumably be hacked to support it;
2. Wireshark 1.8.0 and later can probably read the IP-over-Infiniband snoop files captured on that version of Solaris (earlier versions won't be able to do so).

On Solaris 11, libpcap (which I think is part of Solaris 11, so you wouldn't have to install it yourself) uses BPF to capture traffic. Capturing IP-over-Infiniband might Just Work there, if you're using Wireshark 1.8.0 or later. I don't know whether capturing raw Infiniband frames is supported; that might be what you'd need for Ethernet-over-Infiniband.