Re: Pcap link type of InfiniBand

[Tal Attaly <talat () mellanox com>]

Buy the way, for the user it looks like wireshark does support InfiniBand -
View -> Internals -> Supported Protocols:  IB - InfiniBand
        ACK Extended Transport Header   infiniband.aeth                 Sequence of bytes
        Acknowledge Request                     infiniband.bth.a                Boolean
        ActCount                                infiniband.sminfo.actcount      Unsigned integer, 4 bytes
        Additional Reject Information (ARI)     infiniband.cm.rej.ari           Sequence of bytes
        ...


-----Original Message-----
From: Guy Harris [mailto:guy () alum mit edu] 
Sent: Wednesday, July 06, 2016 10:51 PM
To: Tal Attaly <talat () mellanox com>
Cc: tcpdump-workers () lists tcpdump org
Subject: Re: [tcpdump-workers] Pcap link type of InfiniBand

On Jun 25, 2016, at 11:20 PM, Tal Attaly <talat () mellanox com> wrote:

> I would be happy if someone could help - Pcap link type of InfiniBand 
> http://stackoverflow.com/questions/37936754/pcap-link-type-of-infiniba
> nd

The help that would be needed here would be code for Wireshark to interpret LINKTYPE_INFINIBAND, which, according to

        http://www.tcpdump.org/linktypes.html

is

        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.

Currently, Wireshark includes no code to process those frames, so it cannot handle LINKTYPE_INFINIBAND pcap files or 
packets for LINKTYPE_INFINIBAND interfaces in pcapng files.
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