Cisco 3650 and 802.1q encapsulation

[sanjaynadarajah]

Hi,

I have a Cisco 3650 running software version 03.06.03E.

I noticed that I cannot set the encapsulation to dot1q even though I have configured the port as a trunk.

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Current configuration : 248 bytes
!
interface GigabitEthernet1/0/1
 description Switchport Trunk Configuration
 switchport access vlan 999
 switchport trunk native vlan 998
 switchport trunk allowed vlan 998,999
 switchport mode trunk
 switchport nonegotiate
 load-interval 30

end

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When I look at the interface configuration, it says its a trunk port.

switch#sh interfaces g1/0/1 trunk

Port        Mode             Encapsulation  Status        Native vlan
Gi1/0/1     on               802.1q         other         998

Port        Vlans allowed on trunk
Gi1/0/1     none

Port        Vlans allowed and active in management domain
Gi1/0/1     none

Port        Vlans in spanning tree forwarding state and not pruned
Gi1/0/1     none
switch#

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So I believe that if a port is made a trunk port, the encapsulation mode by default would be a 802.1q. Would that be correct ?

Thank you.

Cheers,

  SN

[johnd2310 · Accepted solution]

Hi,

Yes,the switch only support 802.1q.You cannot set the encapsulation.

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3650/software/release/3e/vlan/configuration_guide/b_vlan_3e_3650_cg/b_vlan_3se_3650_cg_chapter_0100.html

Thanks

John