+-------------------------------------------+ | PCE DOMAIN | | +-----------------------------------+ | | | PCECC | | | +-----------------------------------+ | | ^ ^ ^ | | PWE3/L3VPN|PCEP PCEP|LSP PWE3/L3VPN|PCEP | | V V V | +--------+ | +--------+ +--------+ +--------+ | +--------+ | CE | | | PE1 | | Node x | | PE2 | | | CE | | |...... | |...| |...| |.....| | | Legacy | |if1 | PCECC |if2|PCECC |if3| PCECC |if4 | Legacy | | Node | | | Enabled| |Enabled | |Enabled | | | Node | +--------+ | +--------+ +--------+ +--------+ | +--------+ | | +-------------------------------------------+