Hi,
You're welcome to file a bug report at bugs.wireshark.org,
where you can add a patch as well if you like.
Thanks,
Jaap
On Wed,
11 May 2011 00:19:10 -0700, Liu, Pengfei (Jeff) wrote:
> Hi ,
>
>
The Sub-Type in FEC Stack is defined in RFC4379 as follow:
>
>
Sub-Type Length Value Field
>
> -------- ------ -----------
>
> …………
>
> _ 9 10 "FEC 128" Pseudowire (deprecated) _-----current name__
>
> _ 10 14 "FEC 128" Pseudowire _
>
> 11 16+ "FEC 129" Pseudowire
>
> …………
>
> 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
>
>
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> |
Remote PE Address |
>
>
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> |
PW ID |
>
>
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> |
PW Type | Must Be Zero |
>
>
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
>
FEC 128 Pseudowire (Deprecated)
>
> 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
>
>
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> |
Sender's PE Address |
>
>
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> |
Remote PE Address |
>
>
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> |
PW ID |
>
>
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
> |
PW Type | Must Be Zero |
>
>
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
>
>
FEC 128 Pseudowire
>
> But in packet-mpls-echo.c:209, It is defined
as:
>
> ………….
>
> _#define TLV_FEC_STACK_L2_CID_OLD 9 _-----CID? old
name?__
>
> _#define TLV_FEC_STACK_L2_CID_NEW 10_
>
> ………….
>
>
And the hf is defined like this:
>
> ………….
>
>
/*packet-mpls-echo.c:1219*/
>
> { &hf_mpls_echo_tlv_fec_l2cid_sender,
>
> { "Sender's PE Address", "mpls_echo.tlv.fec.l2_CID_SENDER_",
>
>
FT_IPv4, BASE_NONE, NULL, 0x0, "MPLS ECHO TLV FEC Stack L2_CID SENDER_",
HFILL}
>
> },
>
> { &hf_mpls_echo_tlv_fec_l2cid_remote,
>
> {
"Remote PE Address", "mpls_echo.tlv.fec.l2_CID_REMOTE_",
>
> FT_IPv4,
BASE_NONE, NULL, 0x0, "MPLS ECHO TLV FEC Stack L2_CID REMOTE_", HFILL}
>
> },
>
> { &hf_mpls_echo_tlv_fec_l2cid_vcid,
>
> { "VC ID",
"mpls_echo.tlv.fec.l2cid_vcid",
>
> FT_UINT32, BASE_DEC, NULL, 0x0,
"MPLS ECHO TLV FEC Stack L2_CID VCID_", HFILL}
>
> },
>
> ………….
>
> For example, the_ CID VCID_ should be_ 'PW ID' OF FEC 128 _rather
than some old or invalid alias.
>
> This may confuse the users.
>
>
Best Regards,
>
> Jeff
>
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>
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