for Cisco Catalyst 9500 Series Switches
Software Improvements
- BGP EVPN VXLAN
Tenant Routed Multicast over BGP EVPN VXLANv6
All Models
The following BGP EVPN VXLAN features are introduced in this release:
Tenant Routed Multicast over BGP EVPN VXLANv6 enables the delivery of IPv4 and IPv6 multicast host traffic in BGP EVPN overlay multi-tenant fabric in an efficient and resilient manner. The new software capability enables IPv4 and IPv6 multicast in overlay with underlay network infrastructure natively running single-stack IPv6. The Tenant Routed Multicast over BGP EVPN VXLANv6 is supported over IPv6 Default MDT group.
- Bonjour Apple AirDrop Service
All Models
Introdcues a new service definition apple air-drop.
- Flexible Netflow Record for SGACL Permit and Deny Actions
9500
A new collect parameter for flexible netflow is introduced. Use the collect policy firewall event command to enable collection of information on traffic that is denied or permitted by SGACL. This feature is not supported on Cisco Catalyst 9500X Series Switches.
- IPv6 Neighbor Discovery Proxy
All Models
IPv6 Neighbor Discovery (ND) Proxy facilitates communication between two different hosts that are restricted from communicating directly with each other. IPv6 Routing Proxy and IPv6 DAD Proxy variations of IPv6 ND Proxy are introduced.
- Management Traffic Control
All Models
Management traffic control allows traffic to enter through a user-defined physical interface and restricts traffic to any other interface that is not defined by the user.
- Modified License Level for Unicast mDNS
All Models
Unicast mDNS is now supported with DNA Advantage license.
- Programmability:
YANG Data Models
All Models
The following programmability feature is introduced in this release:
YANG Data Models: For the list of Cisco IOS XE YANG models available with this release, navigate to: https://github.com/YangModels/yang/tree/master/vendor/cisco/xe/17131.
- Removal of Service Types from the Default Service List
All Models
Multifunction-printer and home sharing service types are removed from the default service list.
- request tech-support command
All Models
The request tech-support command was introduced. It generates an archive consisting of the tech support file and the system report.
- SGT Inline Tagging
9500X
Introduces SGT Inline Tagging on the C9500X-28C8D model of Cisco Catalyst 9500 Series Switches.
- show ip eigrp topology and show ip eigrp accounting command output
All Models
The show ip eigrp topology and show ip eigrp accounting command outputs are modified.
The output of show ip eigrp topology command displays a message that provides information about the EIGRP state and the action required.
The output of show ip eigrp accounting does not display any message when the EIGRP is in adjacency state.
- VLAN RADIUS Attributes in Access Requests
All Models
Enhances security for access switches with the use of VLAN RADIUS attributes - VLAN name and ID in access requests.
Notice
- SFP Port LED
The LED of an SFP port in the Catalyst 9500X Series Switches goes to the off state if it is removed.
- SPAN Tx on NAT Template
SPAN Transmit (Tx) on Network Address Translation (NAT) template is now supported on the C9500-12Q, C9500-16X, C9500-24Q, C9500-40X models of the Cisco Catalyst 9500 Series Switches.
- SISF-Based Device Tracking: Deprecation of the udp keyword
The udp keyword, which was available as one of the options with the protocol keyword in the device-tracking configuration mode, was deprecated. There is no replacement keyword.
Open Bugs
CSCwf62551 - C9500X interop:Ports are not coming up between 9300X-Uplink and 9500X with "100G QSFP 100G CU3M"
CSCwf67769 - C9500X 9500X/9600X SVL: Support permit/deny ACL logging on 9500X/9600X
CSCwh35728 - All models Need switch to host macsec support in Sda overlay network
Resolved Bugs
CSCwe89814 - C9500 C9500H Unexpected reboot due to FED process heldown with Netflow
CSCwe91069 - C9500 C9500H Unexpected reload upon removing netflow commands.

