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Beginner

Catalyst 9800 on Hyper v issue

Hello,

Strange issue with Catalyst 9800 hosted on Hyper v:

Interfaces doesn't work in switch port mode:

if interfaces are configured in switchport mode (access or trunk) it seem there is no transmission to the outside.

In routing mode it works correctly.

Already installed on other VM (not Hyper v) without issue.

from WLC we can see the arp table is populated .. but other devices cannot see its mac address and there is no entry in apr table.

with FIA packet trace we can see  

Drop with reason 493.

in attach screenshot of packet capture

1 ACCEPTED SOLUTION

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VIP Engager

Re: Catalyst 9800 on Hyper v issue

 

 Ref : https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/16-12/release-notes/rn-16-12x-9800.html#id_114714

 It seems that if you look at the Supported Hardware hardware section that Hyper-V is not listed, whilst in 

 https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-1/release-notes/rn-17-1-9800.html#id_114714

Supported Hardware section it is mentioned that you need (see tabled  output below). This implies that your version does not yet support Hyper-V and that you will need 17.1.x at least to start with.

   

Microsoft Hyper-V

Windows Server 2016 (Version 1607) with Hyper-V Manager (Version 10.0.14393)

View solution in original post

14 REPLIES 14
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VIP Engager

Re: Catalyst 9800 on Hyper v issue

 

 - Carefully review installation guidelines, and needed resources from the document below; also pay attention to the section Configuring Tagged ports :

   https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/9800-cloud/installation/b-c9800-cl-install-guide/b-c9800-cl-install-guide_chapter_01011.html

 M.

Highlighted
Beginner

Re: Catalyst 9800 on Hyper v issue

Hello,

reviewed few time the installation guidelines.

tagged ports configured in powershell as the example:

Get-VMNetworkAdapter -VMName <C9800-name>

for trunk port:

Set-VMNetworkAdapterVlan -VMName “C9800” -VMNetworkAdapterName Eth1 -Trunk -AllowedVlanIdList “1-4000” -NativeVlanId 0

for access port (management):

-VMName “C9800” -VMNetworkAdapterName Eth0 -Untagged

 

Any other ideas ?

 

 

Highlighted
VIP Engager

Re: Catalyst 9800 on Hyper v issue

 

 - Also check and or lookup compatibility between 9800-virtual version being installed and hyper v version currently in place.

 M.

Highlighted
Beginner

Re: Catalyst 9800 on Hyper v issue

Hello,

I cannot find the compatibility matrix for Hyper v with 9800 version.

9800 version is 6.12.02s 

do you have any link for this ?

 

Thanks and regards

Guido

Highlighted
Beginner

Re: Catalyst 9800 on Hyper v issue

sorry for typo

16.12.02s not 6.12.02s

 

Highlighted
Participant

Re: Catalyst 9800 on Hyper v issue

Highlighted
VIP Engager

Re: Catalyst 9800 on Hyper v issue

 

 Ref : https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/16-12/release-notes/rn-16-12x-9800.html#id_114714

 It seems that if you look at the Supported Hardware hardware section that Hyper-V is not listed, whilst in 

 https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-1/release-notes/rn-17-1-9800.html#id_114714

Supported Hardware section it is mentioned that you need (see tabled  output below). This implies that your version does not yet support Hyper-V and that you will need 17.1.x at least to start with.

   

Microsoft Hyper-V

Windows Server 2016 (Version 1607) with Hyper-V Manager (Version 10.0.14393)

View solution in original post

Highlighted
Participant

Re: Catalyst 9800 on Hyper v issue

Well spotted - I didn't check the release notes - duh! :)
Highlighted

Re: Catalyst 9800 on Hyper v issue

Thank You Marce,

I have the same problem too.

we check !

Roberto

Highlighted
Beginner

Re: Catalyst 9800 on Hyper v issue

Thank you 

this explain the issue

Highlighted
Beginner

Re: Catalyst 9800 on Hyper v issue

I spoke too early.

it doesn't work also with 17.x train

Hosting machine is widows server 2019 1809 build 17763 v. Hyper v manager10.0.1763.1 (switch embedded teaming )

Issue is: from int g1 (routed mode) all works fine - g2 (trunk - native vlan 21).

it is like it receive packets but they are not sent

any vlan on trunk can see mac addresses on its vlan but other devices cannot see the 9800 mac

for example default gateway for each vlan does not see arp entri of vlan configured on 9800

thanks and regards

 

Highlighted
VIP Engager

Re: Catalyst 9800 on Hyper v issue

 

 - As this is all fairly new from the controller-versioning side and the hyper-v support, you may want to take these issue up with Cisco TAC.

 M.

Highlighted
VIP Engager

Re: Catalyst 9800 on Hyper v issue

 

 - Also note that you are not using the exact specified hyper-v environment in terms of windows and hyper-v versions. This is tricky. Usually things are upwards compatible, but for specialized appliances this is not always true. They for instance need to be certified for later versions of windows and hyper-v. You need authoritative confirmation from TAC that it will work on your hyper-v environment.

 M.

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Beginner

Re: Catalyst 9800 on Hyper v issue

Thanks

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