Friday, June 14, 2019

Juniper EX4550 trunk to 3750

I know this has been discussed before but here goes..

I am trying to trunk from a 4550 to a 3750 but traffic is not going through.

3750:

!

interface GigabitEthernet1/0/24

switchport trunk encapsulation dot1q

switchport trunk allowed vlan 20,1060-1069

switchport mode trunk

Juniper:

# run show configuration interfaces ge-0/0/24

unit 0 {

family ethernet-switching {

port-mode trunk;

vlan {

members [ VLAN20 VLAN1060 VLAN1061 VLAN1062 VLAN1063 VLAN1064 VLAN1065 VLAN1066 VLAN1067 VLAN1068 VLAN1069 ];

}

}

}

After doing some research it seems that Junos does not play nice with iOS if you dont have a match on the native-vlan-id. Hence I am thinking of creating vlan1 on the juniper and setting it as a native-vlan-id on the trunk port. Can anyone confirm if this is something that will be causing issues?



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