pwe3-7----Page:4
1 2 3 4 5 6 7
|
Design Considerations (2) On Backup Path Determination Carrying “ERO” should be optional Use hop-by-hop forwarding for the working PW Get “RRO” information from “PW Switching Point TLV (SP-TLV)” Build the protection PW base on SP-TLV May use SP-TLV for loop-detection On CAC at each hop Should be optional depending the traffic types Other relevant protection information: 1:1 or 1:N: need to validate the need of 1:N Fate-sharing: useful in multi-hop applications Hot-standby vs. cold-standby |