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I have a Juniper EX-4300-48P and I was trying to test out connecting it to a TP-LINK TL-SG108E and the intended network flow is as follows:

EX-4300-48P Interface ge-0/0/0 set to trunk VLAN 121,125,126 -> TL-SG108E Port 1

TL-SG108E Port 1 should be manageable via VLAN 121 but trunk VLAN 121,125,126

TL-SG108E Port 2 accesses VLAN 125

TL-SG108E Port 3 accesses VLAN 126


I configured two different setups on the EX-4300-48P (Neither of which worked)-

Version 1:

ge-0/0/0 {
    flexible-vlan-tagging;
    encapsulation extended-vlan-bridge;
    unit 121 {
        vlan-id 121;
    }
    unit 125 {
        vlan-id 125;
    }
    unit 126 {
        vlan-id 126;
    }
}

Version 2:

ge-0/0/0 {
  unit 0 {
    family ethernet-switching {
      interface-mode trunk;
      vlan {
        members [ v121 v125 v126 ];
      }
    storm-control default;
    }
  }
}

So far I configured this on the TL-SG108E-

Port 1:

  • VLAN Member for VLAN 121,125,126
  • Tagged for VLAN 121,125,126
  • PVID = 121

Port 2:

  • VLAN member for VLAN 125
  • Untagged VLAN 125
  • PVID = 125

Port 3:

  • VLAN member for VLAN 126
  • Untagged VLAN 126
  • PVID = 126

8021Q VLAN Settings

8021Q PVID Settings

Anyone have any ideas as to why when I connect the trunk port I don't even see any packet traffic on ge-0/0/0 but have a blinking activity light on both ends? Also I don't even see the TP-LINK TL-SG108E on the network?

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  • Unfortunately, your TP-Link is off-topic here. For a device to be on-topic, the manufacturer must offer optional, paid support, and TP-Link does not offer that for that switch.
    – Ron Maupin
    Commented Apr 25 at 20:24

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