[MEXT] FW: Comments to draft-ietf-mext-binary-ts-00.txt

[Yungui Wang <[e-mail]>]

Hello 

I had sent below comment at before. Re-forwarding it here. Welcome
your clarification. Thanks.

1, Could the IPv4/IPv6 binary traffic selector sub-options be
encoded as the TLV/TV (type, length, value) format?
Consideration: TLV/TV format can save size of message.
case 1, It may be not necessary to describe the traffic which
includes all the parameters in the sub-option. e.g. the traffic is
described as "UDP 21"
case 2, On the other hand, one parameter may appear multiple times
in the sub-option to describe the traffic. e.g. the traffic
includes two flow which may be presented as TCP port 5000 and
5002.

2,  Could the Ethernet service flow description sub-option be also
introduced in this document? 
Consideration: 
The Ethernet service sub-option is senseful when Ethernet service
is supported by MIP (referring to
http://www.ietf.org/internet-drafts/draft-wu-mip4-ether-02.txt ). 

The format of the Ethernet serice sub-option can be:

- Ethernet serice sub-option (TLV/TV format)
0x01   48bit,source MAC address
0x02   48bit,destination MAC address
0x03   16bit,ethernet type
0x04   16bit,vlan tag

- Ethernet serice sub-option (proto header format)

 0                   1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|S|D|E|V|       Reservered      |   (S) Source MAC Address      |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                    (S) Source MAC Address                     |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                 (D)Destination MAC Address                    |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|(D)Destination MAC Address     |   (E) Ethernet Type           |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|        (V) VLAN tag           |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

B.R.
Yungui