9500 Stackwise Virtual Commands Missing

[ciscoruckus]

I am expecting to see the link option to setup stackwise virtual.  Only option is dual-active-detection?

2 x cisco C9500-48Y4C

Linked with SFP-10G-T-X

Cisco IOS Software [Cupertino], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 17.9.5, RELEASE SOFTWARE

SW1(config)#stack
SW1(config)#stackw
SW1(config)#stackwise-virtual
Please reload the switch for Stackwise Virtual configuration to take effect
Upon reboot, the config will be part of running config but not part of start up config.
SW1(config-stackwise-virtual)#domain 100
SW1(config-stackwise-virtual)#exit
SW1(config)#
*Jan 13 17:47:31.726: %SMART_LIC-3-COMM_FAILED: Communications failure with the Cisco Smart License Utility (CSLU) : Unable to resolve server hostname/domain name int Tw1/0/23
SW1(config-if)#DES SWV
SW1(config-if)#sta
SW1(config-if)#stackwise-virtual ?
dual-active-detection Configure this link for dual active detection

[balaji.bandi · Accepted solution]

Can you post - show license summary

For SVL to work, you need to have a network advantage License.

if this essential try adding License RTU

license boot level network-advantage

wr and reload and configure again.

also check any interface limitation :

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9500/software/release/17-9/configuration_guide/ha/b_179_ha_9500_cg/configuring_cisco_stackwise_virtual.html

[ciscoruckus]

I believe SFP-10G-T-X are not SVL capable.

[Rich R · Accepted solution]

@ciscoruckus that is correct - those SFP are not supported.

This is clearly stated in the config guide:
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9500/software/release/17-12/configuration_guide/ha/b_1712_ha_9500_cg/configuring_cisco_stackwise_virtual.html

- Dual-Active Detection (DAD) and SVL configurations are not supported on SFP-10G-T-X transceivers, and these optics cannot be used as SVL and or DAD links.