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Beginner

Routed ports with QSFP Breakout optics

Hi There,

We have two Nexus 5672's and are using 40G to 4 x 10G breakout twinax's.

 

We've managed to configure the breakout fine and have had trunk ports up and running.


I was trying to configure non-switched routed ports on one of the configured breakout connections.

This didn't work so I wondered whether it's not possible to have switched and non switched interfaces on the same breakout.
I tried just routed ports, but again, no joy...

VK05102-SWI-B01# sho int ether 2/1/1 capabilities
Ethernet2/1/1
Model: N5K-C5672UP-M6Q
Type (SFP capable): QSFP-4X10G-AOC3M
Speed: 1000,10000
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: yes
MDIX: no
Link Debounce: yes
Link Debounce Time: yes
dot1Q-tunnel mode: yes
Pvlan Trunk capable: yes
TDR capable: no
FabricPath capable: yes
Port mode: Switched
FEX Fabric: yes

 

So my question, is it even possible to configure breakout interfaces as routed ports rather than switched?

Thanks,

5 REPLIES 5
VIP Advisor

Re: Routed ports with QSFP Breakout optics

Hello


@graces wrote:

So my question, is it even possible to configure breakout interfaces as routed ports rather than switched?


Did you change the port into a routed port

int x:x

no switchport 

 

 



kind regards
Paul

Please rate and mark posts accordingly if you have found any of the information provided useful.
It will hopefully assist others with similar issues in the future
Beginner

Re: Routed ports with QSFP Breakout optics

Hi Paul,

I had to swap it back hence the current config (I had other things to configure so had to get it back up and running...but I could swap back to test things)

So I understand due to the ASICS we have to configure a group of ports as breakout capable, hence the port numbering:

sho interface status

Eth2/1/1 VK05102-SWI-B10-01 connected trunk full 10G QSFP-4X10G-
Eth2/1/2 VK05102-SWI-B11-TR connected trunk full 10G QSFP-4X10G-
Eth2/1/3 VK05102-SWI-B02 Et connected trunk full 10G QSFP-4X10G-
Eth2/1/4 VK05102-SWI-A01-01 connected trunk full 10G QSFP-4X10G-
Eth2/2/1 -- sfpAbsent 1 full 10G --
Eth2/2/2 -- sfpAbsent 1 full 10G --
Eth2/2/3 -- sfpAbsent 1 full 10G --
Eth2/2/4 -- sfpAbsent 1 full 10G --
Eth2/3/1 -- sfpAbsent 1 full 10G --
Eth2/3/2 -- sfpAbsent 1 full 10G --
Eth2/3/3 -- sfpAbsent 1 full 10G --
Eth2/3/4 -- sfpAbsent 1 full 10G --
Eth2/4 -- sfpAbsent 1 half 40G --
Eth2/5 -- sfpAbsent 1 half 40G --
Eth2/6 VK05102-SWI-B02-TR connected trunk full 40G QSFP-H40G-C

So, 2/1/x, 2/2/x, 2/3/x and 2/4/x are now configured as breakouts.

So what I wanted to do was have e2/1/1 and e2/1/4 as routed ports using the no switchport and leave2/1/2 and 2/1/3 as trunks.

But unfortunately that didn't seem to work, the routed ports where showing as unknown and were down.

My gut feeling says you have to have them all as trunks, or all as routed ports.

I've tried to search around for answers, but so far I'm drawing blanks.

Cheers,
Simon.

VIP Advisor

Re: Routed ports with QSFP Breakout optics

Hello

So these ports you want as routed ports are in a L2 aggregation  if so then you shouldn’t be able to do this they need to be separated and on their own L3 aggregated link



kind regards
Paul

Please rate and mark posts accordingly if you have found any of the information provided useful.
It will hopefully assist others with similar issues in the future
Beginner

Re: Routed ports with QSFP Breakout optics

Hi,

So if I understand correctly, the correct process is before running the breakout.

I should have configured:

 

interface ether 2/1

no switchport

 

interface ether 2/2

no switchport

 

interface ether 2/3

no switchport

 

Then run the breakout command:

 

interface breakout slot 2 port 1-3 map 10g-4x

 

and then after the reset of the module, all of my breakout ports would ALL be routed interfaces?

Have I understood that correctly?

Thanks,

Simon.

VIP Advisor

Re: Routed ports with QSFP Breakout optics

Hello

TBH never done it but it seems an applicable way to do it just like any other L2/L3 aggregation - give it a try 



kind regards
Paul

Please rate and mark posts accordingly if you have found any of the information provided useful.
It will hopefully assist others with similar issues in the future
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