Subject: RE: [PWE3] MPLS PID

From: Shahram Davari <[email-masked]>
Date: Tue, 25 Mar 2003 14:18:26 -0800

>1.  Dealing with ECMP behavior
>2.  Inband OAM flows
>3.  Identifying flows for netmanagement applications.
>

I don't think any of them justifies adding PID. 

1) ECMP could use only label hashing and not hash IP header.
2) OAM flows could use IPv4/V6 null or MPLS Alert label
3) Netmanagment could identify the flow at the ingress. 

-Shahram