I have the following concerns about the approach proposed by  this draft:

  *   Suppose the information to be carried by the  Extended IS Reachability 
(type 22) (in Example 4.1) is larger than 255. Does it mean the recipient will 
receive 2 TLVs (both with the Type 22) in one LSA? For legacy routers, the 
second TLV (Type =22) might overwrite  the first TLV.
  *   Isn't it more straightforward to have a new TYPE value for carrying the 
extra information beyond the 255 bytes? So, the legacy routers can ignore the 
TLVs with the unrecognized types.

Therefore, I don't support the WG adoption, unless those issues are resolved.

Linda

From: Lsr <lsr-boun...@ietf.org> On Behalf Of Yingzhen Qu
Sent: Friday, November 17, 2023 11:24 AM
To: draft-pkaneria-lsr-multi-...@ietf.org; lsr <lsr@ietf.org>
Subject: [Lsr] WG Adoption Call - draft-pkaneria-lsr-multi-tlv (11/17/2023 - 
12/09/2023)

Hi,

This begins a WG adoption call for draft-pkaneria-lsr-multi-tlv: 
draft-pkaneria-lsr-multi-tlv-04 - Multi-part TLVs in IS-IS 
(ietf.org)<https://datatracker.ietf.org/doc/draft-pkaneria-lsr-multi-tlv/>

Please send your support or objection to the list before December 9th, 2023. An 
extra week is allowed for the US Thanksgiving holiday.

Thanks,
Yingzhen
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