1. BGP community based PCE in native IP network
Lu Huang, China Mobile
Aijun Wang, China Telecom

2. Problem to be addressed
This draft is for the same scenario and requirement as the draft [I-D.wang- teas-pce-native-ip]
Find a way to support traffic steering in a native-ip network
For TE, TS, LB, we need the BGP community information of a specific flow.
We usually design several communities for one AS.

3. Proposed solution
Use BGP community to differentiate traffics with various priority
Assign a specific next-hop address for a specific BGP community
Through PCE, set explicit path hop by hop for the specific next- hop address to steer the related traffic as needed
Community 100:100
For IP12  IP 22
lo1
lo1
Community 100:200
For IP11  IP 21
PCE
lo0
lo0
For TE, TS, LB, we need the BGP community information of a specific flow.
We usually design several communities for one AS.
IP12
IP22
IP11
IP21

4. Next Steps Welcome your comments and suggestions
Request for WG adoption
For TE, TS, LB, we need the BGP community information of a specific flow.
We usually design several communities for one AS.

5. Thanks