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About LDP PDU

  • From: "Chris LaVallee" <clavallee@zumanetworks.com>
  • Date: Mon, 5 Jun 2000 10:03:26 -0700
  • Importance: Normal

lijianping,

The max PDU length is 4096, therefore it's possible to use multiple TCP
packets (over ethernet), if a message gets really big ( > 1500)

The Init message does allow you to inform your peer the max PDU you want to
receive. Although I don't think this guarantees that there will be only one
LDP PDU per TCP packet. TCP data is a stream and PDUs don't have to begin
and end at the boundary of the TCP packet.

Fortunately, I think it's unlikely that a PDU will ever get really big.

Chris



> -----Original Message-----
> From: owner-mpls@UU.NET [mailto:owner-mpls@UU.NET]On Behalf Of
> lijianping@mail.zte.com.cn
> Sent: Monday, June 05, 2000 1:18 AM
> To: mpls@UU.NET
> Subject: About LDP PDU
>
>
>
>
>
> I have a question about LDP that bother me :
>
> Does an LDP PDU is tranfered in one TCP packet or
> it may be separated to two or more TCP packet.
> How can I guarantee to transfer a LDP PDU in one TCP
> packet?
>
>
> Thanks in advance,
> lijianping.
>
>
>
>