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Beginner

DNAC 1.3.1.4 Wireless pool option

Dear people,

since DNAC 1.3.1.4, there is a new IP Pool option in the host onboarding menu called "Wireless Pool"

Behind the obvious, can someone explain precisely what this option does (in the code) ?

I thought that for wireless pools, the only requirement was to enable L2-Extension (So LISP registers the MAC + IP of the EID).

Now this gets confusing.

 

Capture.PNG

 

Best regards,

Raphael Lienard | CCIE #63267
2 ACCEPTED SOLUTIONS

Accepted Solutions
Highlighted
Cisco Employee

Re: DNAC 1.3.1.4 Wireless pool option

Hey Rlienard,

 

I ran some tests in the lab on 1.3.1.4 and found the following:

 

1. When we onboard an IP pool to a VN from host onboarding (L2 Extension enabled / Wireless pool disabled), DNAC will push the L2 VNID LISP configuration to the CP nodes

2. When we select the IP pool as a 'Wireless Pool', DNAC will configure a fabric interface on the wireless LAN controller for the L2 VNID

 

Screen Shot 2019-12-20 at 1.19.59 PM.png

 

-- What DNAC pushes to the WLC:

config fabric vnid create name 10_20_30_128-patient l2-vnid 8205

 

Screen Shot 2019-12-20 at 1.21.12 PM.png

Best Regards,

View solution in original post

Highlighted
Cisco Employee

Re: DNAC 1.3.1.4 Wireless pool option

Thanks very helpful Daniel.  In the second case, does DNAC also push the LISP config to the CP? 

 

I found some internal documentation which I will share here.  The problem being solved with this option is to reduce the number of IP Pools wireless controllers need to keep track of that aren't ever being used (because the controllers have a hard limit some networks were reaching).  So the wireless-pool button determines which pools the WLC should care about, and which pools will show up in the SSID dropdown in DNAC.  This button can be changed back and forth even after the pool is already created. This option applies only for Non-INFRA VNs.  The same logic applies to Aire OS, eWLC, and eCA.

View solution in original post

4 REPLIES 4
Highlighted
Cisco Employee

Re: DNAC 1.3.1.4 Wireless pool option

Hey Rlienard,

 

I ran some tests in the lab on 1.3.1.4 and found the following:

 

1. When we onboard an IP pool to a VN from host onboarding (L2 Extension enabled / Wireless pool disabled), DNAC will push the L2 VNID LISP configuration to the CP nodes

2. When we select the IP pool as a 'Wireless Pool', DNAC will configure a fabric interface on the wireless LAN controller for the L2 VNID

 

Screen Shot 2019-12-20 at 1.19.59 PM.png

 

-- What DNAC pushes to the WLC:

config fabric vnid create name 10_20_30_128-patient l2-vnid 8205

 

Screen Shot 2019-12-20 at 1.21.12 PM.png

Best Regards,

View solution in original post

Highlighted
Cisco Employee

Re: DNAC 1.3.1.4 Wireless pool option

Thanks very helpful Daniel.  In the second case, does DNAC also push the LISP config to the CP? 

 

I found some internal documentation which I will share here.  The problem being solved with this option is to reduce the number of IP Pools wireless controllers need to keep track of that aren't ever being used (because the controllers have a hard limit some networks were reaching).  So the wireless-pool button determines which pools the WLC should care about, and which pools will show up in the SSID dropdown in DNAC.  This button can be changed back and forth even after the pool is already created. This option applies only for Non-INFRA VNs.  The same logic applies to Aire OS, eWLC, and eCA.

View solution in original post

Highlighted
Beginner

Re: DNAC 1.3.1.4 Wireless pool option

Thank you for this clear explanation.
Indeed, if you don't specify any "wireless pools", all IP pools of the fabric site will appear in the WLC.
After selecting this option only the selected IP Pool will appear in the list.
Raphael Lienard | CCIE #63267
Highlighted
Beginner

Re: DNAC 1.3.1.4 Wireless pool option

Hi Daniel,
thanks for your helpful answer, this option is now clear to me.
Best regards,
Raphael Lienard | CCIE #63267
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