Hey Tassos, On Sat, 21 Mar 2020 at 22:51, Tassos Chatzithomaoglou <achatz@forthnet.gr> wrote:
Yep, the RFC gives this option. Does Juniper MX/ACX series support it? I know for sure Cisco doesn't.
I only run bidir, which Cisco do you mean? ASR9k allows you to configure it. both Insert/Discard Flow label on transmit/recceive code Flow label TLV code receive Discard Flow label on receive transmit Insert Flow label on transmit JunOS as well: flow-label-receive Advertise capability to pop Flow Label in receive direction to remote PE flow-label-receive-static Pop Flow Label from PW packets received from remote PE flow-label-transmit Advertise capability to push Flow Label in transmit direction to remote PE flow-label-transmit-static Push Flow Label on PW packets sent to remote PE RP/0/RP0/CPU0:r14.labxtx01.us.(config-l2vpn-pwc-mpls)#do show l2vpn xconnect interface Te0/2/0/3/7.1000 detail .. PW: neighbor 204.42.110.29, PW ID 1290, state is up ( established ) PW class ethernet-ccc, XC ID 0xa0000025 Encapsulation MPLS, protocol LDP Source address 204.42.110.15 PW type Ethernet, control word disabled, interworking none PW backup disable delay 0 sec Sequencing not set LSP : Up Load Balance Hashing: src-dst-ip Flow Label flags configured (Tx=1,Rx=0), negotiated (Tx=1,Rx=0) .... ytti@r28.labxtx01.us.bb# run show l2circuit connections interface et-0/0/54:3.0 ... Neighbor: 204.42.110.15 Interface Type St Time last up # Up trans et-0/0/54:3.0(vc 1290) rmt Up Mar 20 04:06:45 2020 7 Remote PE: 204.42.110.15, Negotiated control-word: No Incoming label: 585, Outgoing label: 24003 Negotiated PW status TLV: No Local interface: et-0/0/54:3.0, Status: Up, Encapsulation: ETHERNET Description: BD: wmccall ixia 1-1 Flow Label Transmit: No, Flow Label Receive: Yes ... I didn't push bits, but at least I can signal unidir between ASR9k and PTX1k. -- ++ytti