That is correct, this because QFX5100 support two modes service provider or enterprise configurations.
with l2circuits it needs to be in service provider mode.
When you apply vlan-ccc encapsulation to an interface its process is mpls/l2circuit, so basically becomes a transport interface.
The QFX5100 have a limitation per port when it comes to encapsulation due to its chipset
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Original Message:
Sent: 04-03-2026 06:21
From: Grzegorz Dacka
Subject: l2circuit one way traffic
Hi
The problem was solved a long time ago, the thing is that when there is flexible ethernet, you can't set interface-mode trunk and add vlan members
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Grzegorz Dacka
Original Message:
Sent: 04-03-2026 00:17
From: Rene1
Subject: l2circuit one way traffic
Hi
Can you provide output of
show interfaces ge-0/0/47. | display inheritance | except ##
for interfaces participating in the l2circuit? on both devices?
Original Message:
Sent: 10-05-2023 17:17
From: Grzegorz Dacka
Subject: l2circuit one way traffic
Hello
I have some problem with l2circuit on QFX5100 one way traffic maybe some can help me
In general, the problem is that the lack of traffic in the tunnel itself, that is, devices connected to ports 0/47 are not able to ping
Both switch Junos: 19.1R3.9
Switcha A
run ping mpls l2circuit virtual-circuit 200 neighbor 100.100.12.4
!!!!!
--- lsping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
Neighbor: 100.100.12.4
Interface Type St Time last up # Up trans
ge-0/0/47.0(vc 200) rmt Up Oct 5 22:45:31 2023 1
Remote PE: 100.100.12.4, Negotiated control-word: No
Incoming label: 19, Outgoing label: 18
Negotiated PW status TLV: No
Local interface: ge-0/0/47.0, Status: Up, Encapsulation: ETHERNET
Description: SQD
Flow Label Transmit: No, Flow Label Receive: No
Switch B
run ping mpls l2circuit virtual-circuit 200 neighbor 100.100.12.1
.....
--- lsping statistics ---
5 packets transmitted, 0 packets received, 100% packet loss
Neighbor: 100.100.12.1
Interface Type St Time last up # Up trans
ge-0/0/47.0(vc 200) rmt Up Oct 5 23:04:06 2023 1
Remote PE: 100.100.12.1, Negotiated control-word: No
Incoming label: 18, Outgoing label: 19
Negotiated PW status TLV: No
Local interface: ge-0/0/47.0, Status: Up, Encapsulation: ETHERNET
Description: SQD
Flow Label Transmit: No, Flow Label Receive: No
If you need more information ask
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Grzegorz Dacka
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