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Is QinQ possible on a FEX client switch?

ryanpst88
Level 1
Level 1

This document says:

IA client ports do not support these features:

...

- IEEE 802.1Q tunneling

My ports will take the commands but I just can't seem to get it working, however I can't see anything conclusive online that says it should or shouldn't work. Can anyone advise whether the above link is 100% correct and QinQ isn't possible on 6800IA or if I've misunderstood?


Many thanks!

3 Replies 3

Mark Malone
VIP Alumni
VIP Alumni

Hi

Check the FEX itself it will tell you what there capable of , but there stripped down so I doubt they support qinq , mine don't look to anyway 2248s and 2232s

# sh int Eth101/1/12 capabilities
Ethernet101/1/12
  Model:                 N2K-C2248TP-1GE
  Type (Non SFP):        10/100/1000BaseT
  Speed:                 10,100,1000,auto
  Duplex:                full
  Trunk encap. type:     802.1Q
  Channel:               yes
  Broadcast suppression: no
  Flowcontrol:           rx-(off/on),tx-(off/on)
  Rate mode:             none
  QOS scheduling:        rx-(6q1t),tx-(1p6q0t)
  CoS rewrite:           no
  ToS rewrite:           no
  SPAN:                  yes
  UDLD:                  no
  MDIX:                  no
  Link Debounce:         yes
  Link Debounce Time:    yes
  dot1Q-tunnel mode:     yes
  Pvlan Trunk capable:   yes
  TDR capable:           no
  FabricPath capable:    no
  Port mode:             Switched
  FEX Fabric:            no

Hi thanks for the reply. I can see yours says the below:

dot1Q-tunnel mode:     yes

Where as mine doesn't have this line:

sh int Gi101/1/0/3 capabilities 
GigabitEthernet101/1/0/3
Model: C6800IA-48FPD
Type: 10/100/1000BaseT
Speed: 10,100,1000,auto
Duplex: half,full
Trunk encap. type: 802.1Q
Trunk mode: on,off,desirable,nonegotiate
Channel: yes
Broadcast suppression: percentage(0-100)
Flowcontrol: rx-(off,on,desired),tx-(none)
Membership: static
Fast Start: yes
QOS scheduling: rx-(1p3q3t), tx-(1p3q3t)
QOS queueing mode: rx-(cos,dscp), tx-(cos,dscp)
CoS rewrite: yes
ToS rewrite: yes
Inline power: yes, policing, poeplus
SPAN: source/destination
UDLD yes
Link Debounce: no
Link Debounce Time: no
Ports-in-ASIC (Sub-port ASIC) : UNAVAILABLEnum_bus = 0, num_ports = 0
Remote switch uplink: no
Port-Security: yes
Dot1x: yes

Strangely enough though an SFP port on the C6832-X-LE doesn't have this either, but I'd imagine the brain of the FEX should be able to do QinQ?

sh int te1/1/6 capabilities 
TenGigabitEthernet1/1/6
Model: C6832-X-LE
Type: 10/100/1000BaseT
Speed: 10,100,1000,auto
Duplex: half,full
Trunk encap. type: 802.1Q
Trunk mode: on,off,desirable,nonegotiate
Channel: yes
Broadcast suppression: percentage(0-100)
Flowcontrol: rx-(off,on,desired),tx-(off,on,desired)
Membership: static
Fast Start: yes
QOS scheduling: rx-(1p7q4t), tx-(1p7q4t)
QOS queueing mode: rx-(cos,dscp), tx-(cos,dscp)
CoS rewrite: yes
ToS rewrite: yes
Inline power: no
SPAN: source/destination
UDLD yes
Link Debounce: yes
Link Debounce Time: no
Ports-in-ASIC (Sub-port ASIC) : 1-2,5-6 (1-8)
Remote switch uplink: no
Port-Security: yes
Dot1x: yes

Any advice on the above?

yes see mine is coming off a 5K and a diff fex not a 6k switch so the capabilities may be different per fex , if its not there its not supported usually , I was told by TAC before that's where you check what your FEX port can do as we had discrepancies between are different types of fexes and there abilities

saying that looking at the doc qinq is not supported on any 2k model connected to 5/6 or 7 switches , its not listed at all as a feature  

http://www.cisco.com/c/en/us/products/collateral/switches/nexus-2000-series-fabric-extenders/data_sheet_c78-507093.html

but then I see bugs for qinq in fexes released last month

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCut03537/?referring_site=bugquickviewredir

The commands are definitely there though on my fex

(config-if)# switchport dot1q ethertype ?
  0x8100          Default EtherType for 802.1q frames
  0x88A8          EtherType for 802.1ad double tagged frames
  0x9100          EtherType for QinQ frames
  <0x600-0xffff>  Any EtherType

c

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