Hi, Not sure if I'm "doing the dumb" or Junos bug or limitation of the QFX / Trident 2+ chip-set.
Trying to do a basic l2circuit as follows VLAN Tagged Interface > MX204 l2circuit / ldp > QFX-5110 / ldp > QFX-5110 l2circuit / ldp > VLAN Tagged Interface What I am seeing is traffic going Test Device > QFX-5110 > QFX-5110 > MX204 > Test Device arrives fine. Return path from Test Device > MX204 > QFX-5110 > QFX-5110 > Test Device is broken. Config is as follows *MX204 Port facing test device on VLAN tag 123* liam@WN-MX204-1# show interfaces xe-0/1/3 description "WN-PVE-1 C0/F3 enp6s0f1"; flexible-vlan-tagging; mtu 9216; encapsulation flexible-ethernet-services; unit 123 { encapsulation vlan-ccc; vlan-id 123; family ccc; } MPLS port facing intermediate / transit QFX (MS) liam@WN-MX204-1# show interfaces xe-0/1/1 description "OTN MS"; mtu 9216; unit 0 { family inet { address 172.16.130.2/30; } family mpls; } liam@WN-MX204-1# show interfaces lo0 unit 0 { family inet { address 127.0.0.1/32; address 192.168.68.3/32; } } liam@WN-MX204-1# show protocols l2circuit neighbor 192.168.68.5 { interface xe-0/1/3.123 { virtual-circuit-id 123; control-word; encapsulation-type ethernet-vlan; ignore-mtu-mismatch; pseudowire-status-tlv; } } liam@WN-MX204-1# show protocols ldp interface xe-0/1/1.0; interface lo0.0; liam@WN-MX204-1# show protocols mpls path-mtu { rsvp mtu-signaling; } ipv6-tunneling; icmp-tunneling; optimize-timer 60; label-switched-path wn-mx-to-na-qfx-test { from 192.168.68.3; to 192.168.68.5; adaptive; fast-reroute; primary anypath; } path anypath; interface xe-0/1/1.0; liam@WN-MX204-1# show protocols ospf traffic-engineering; area 0.0.0.0 { interface lo0.0 { passive; } interface fxp0.0 { disable; } interface xe-0/1/0.549 { interface-type p2p; } interface xe-0/1/1.0 { interface-type p2p; } } *Intermediate / transit QFX*, MPLS interface facing MX204 liam@MS-QFX5110-1# show interfaces xe-0/0/1 description "OTN MS-WN"; mtu 9216; unit 0 { family inet { address 172.16.130.1/30; } family mpls; } Interface facing destination QFX liam@MS-QFX5110-1# show interfaces xe-0/0/0 description "OTN MS-NA"; mtu 9216; unit 0 { family inet { address 172.16.130.5/30; } family mpls; } liam@MS-QFX5110-1# show interfaces lo0 unit 0 { family inet { address 127.0.0.1/32; address 192.168.68.6/32; } } liam@MS-QFX5110-1# show protocols ldp interface xe-0/0/0.0; interface xe-0/0/1.0; interface lo0.0; liam@MS-QFX5110-1# show protocols mpls path-mtu { rsvp mtu-signaling; } ipv6-tunneling; icmp-tunneling; optimize-timer 60; path anypath; interface xe-0/0/0.0; interface xe-0/0/1.0; liam@MS-QFX5110-1# show protocols ospf traffic-engineering; area 0.0.0.0 { interface lo0.0 { passive; } interface vme.0 { disable; } interface xe-0/0/0.0 { interface-type p2p; } interface xe-0/0/1.0 { interface-type p2p; } } *Destination QFX / other end of l2circuit*, interfacing test equipment on vlan 123 liam@NA-QFX5110-1# show interfaces xe-0/0/9 description "Temp Link to Arista"; flexible-vlan-tagging; mtu 9216; encapsulation flexible-ethernet-services; unit 123 { encapsulation vlan-ccc; vlan-id 123; family ccc; } Interface facing intermediate / transit QFX liam@NA-QFX5110-1# show interfaces xe-0/0/1 description "OTN NA-MS"; mtu 9216; unit 0 { family inet { address 172.16.130.6/30; } family mpls; } liam@NA-QFX5110-1# show interfaces lo0 unit 0 { family inet { address 127.0.0.1/32; address 192.168.68.5/32; } } liam@NA-QFX5110-1# show protocols l2circuit neighbor 192.168.68.3 { interface xe-0/0/9.123 { virtual-circuit-id 123; control-word; encapsulation-type ethernet-vlan; ignore-mtu-mismatch; pseudowire-status-tlv; } } liam@NA-QFX5110-1# show protocols ldp interface xe-0/0/1.0; interface lo0.0; liam@NA-QFX5110-1# show protocols mpls path-mtu { rsvp mtu-signaling; } ipv6-tunneling; icmp-tunneling; optimize-timer 60; label-switched-path na-qfx-to-wn-mx-test { from 192.168.68.5; to 192.168.68.3; adaptive; fast-reroute; primary anypath; } path anypath; interface xe-0/0/1.0; liam@NA-QFX5110-1# show protocols ospf traffic-engineering; area 0.0.0.0 { interface lo0.0 { passive; } interface vme.0 { disable; } interface xe-0/0/0.554 { interface-type p2p; } interface xe-0/0/1.0 { interface-type p2p; } } L2 Circuit is up on the QFX liam@NA-QFX5110-1> show l2circuit connections Layer-2 Circuit Connections: Legend for connection status (St) EI -- encapsulation invalid NP -- interface h/w not present MM -- mtu mismatch Dn -- down EM -- encapsulation mismatch VC-Dn -- Virtual circuit Down CM -- control-word mismatch Up -- operational VM -- vlan id mismatch CF -- Call admission control failure OL -- no outgoing label IB -- TDM incompatible bitrate NC -- intf encaps not CCC/TCC TM -- TDM misconfiguration BK -- Backup Connection ST -- Standby Connection CB -- rcvd cell-bundle size bad SP -- Static Pseudowire LD -- local site signaled down RS -- remote site standby RD -- remote site signaled down HS -- Hot-standby Connection XX -- unknown Legend for interface status Up -- operational Dn -- down Neighbor: 192.168.68.3 Interface Type St Time last up # Up trans xe-0/0/9.123(vc 123) rmt Up Jul 18 21:05:02 2019 1 Remote PE: 192.168.68.3, Negotiated control-word: Yes (Null) Incoming label: 73, Outgoing label: 95 Negotiated PW status TLV: Yes local PW status code: 0x00000000, Neighbor PW status code: 0x00000000 Local interface: xe-0/0/9.123, Status: Up, Encapsulation: VLAN Flow Label Transmit: No, Flow Label Receive: No L2 Circuit is up on the MX liam@WN-MX204-1> show l2circuit connections Layer-2 Circuit Connections: Legend for connection status (St) EI -- encapsulation invalid NP -- interface h/w not present MM -- mtu mismatch Dn -- down EM -- encapsulation mismatch VC-Dn -- Virtual circuit Down CM -- control-word mismatch Up -- operational VM -- vlan id mismatch CF -- Call admission control failure OL -- no outgoing label IB -- TDM incompatible bitrate NC -- intf encaps not CCC/TCC TM -- TDM misconfiguration BK -- Backup Connection ST -- Standby Connection CB -- rcvd cell-bundle size bad SP -- Static Pseudowire LD -- local site signaled down RS -- remote site standby RD -- remote site signaled down HS -- Hot-standby Connection XX -- unknown Legend for interface status Up -- operational Dn -- down Neighbor: 192.168.68.5 Interface Type St Time last up # Up trans xe-0/1/3.123(vc 123) rmt Up Jul 19 01:03:21 2019 1 Remote PE: 192.168.68.5, Negotiated control-word: Yes (Null) Incoming label: 95, Outgoing label: 73 Negotiated PW status TLV: Yes local PW status code: 0x00000000, Neighbor PW status code: 0x00000000 Local interface: xe-0/1/3.123, Status: Up, Encapsulation: VLAN Flow Label Transmit: No, Flow Label Receive: No On the* MX end test equipment *I can see the MAC address learned from the *QFX end test equipment*, however on the *QFX end test equipment* I cannot see the MAC address of the* MX end test equipment*. The MX's and QFX's are running Junos: 18.4R1-S3.1 Not sure if I just have this configured wrong, or a QFX chippie limitation or a Junos bug. Any help / pointers would be appreciated :) -- Kind Regards Liam Farr Maxum Data +64-9-950-5302 _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp