Comstock Token Format Protocol

[Tom Brearley via Wireshark-dev <wireshark-dev () wireshark org>]

Dear WireShark Developers/Users
I was wondering if anyone out there had any experience with the ComStock Token Format protocol (CTF)? It is a financial 
protocol used to transmit real time data. It is used by companies such as Interactive Data/ICE for their data feeds.
I am a subscriber to such a data feed and am using WireShark to have a look at the TCP packets coming through the wire. 
I'm so far completely unable to decipher them (its possible that they are compressed - on a side note, could anyone 
point out if they are? I have attached some sample packets).
I am aware however that the feed uses this protocol. It works in such a way that a token number is used, along with the 
data, in the form "TOKENNUMBER=DATA", or as per the screenshot below, for a more real example "8=521"(where 8 would 
signify a trade price and 521 would be the trade price itself). I believe that these values will actually be encoded in 
the byte array.A link to the full protocol is here:-https://wenku.baidu.com/view/530e0268b84ae45c3b358c24.html###

Does anyone have any information about protocols such as these? I would also be extremely grateful if someone could 
also have a look at the sample packet attached and tell me if I am missing something simple (such as 
compression/encryption - the first two bytes of most of the messages always seem to start with 153, 121 - not sure if 
this is a compression signature). Any help would be massively appreciated.
Tom

Attachment: packet_sample.pcapng
Description:

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