BGP EVPN VXLAN

• fast-detection command

• show lisp instance {ipv4 | ipv6 | ethernet} command

All Models

The following BGP EVPN VXLAN features are introduced in this release:

• fast-detection command: fast-detection command enables SD-Access support for fast wireless roaming of end points.

• show lisp instance {ipv4 | ipv6 | ethernet} command: The output of show lisp instance {ipv4 | ipv6 | ethernet} command is enhanced to display the affinity ID for the local device.

IP SLA Probe Configuration Modification Capability

All Models

Introduces support to reconfigure the parameters of a scheduled IP SLA session using the configure replace command.

mDNS Protocol Options

All Models

The mDNS protocol option is introduced in the device sensor filter spec command. This allows the user to apply the mDNS protocol TLV filter list to the device sensor output. The device sensor filter list mdns command is introduced to create a mDNS protocol filter containing a list of Type-Length-Value (TLV) fields that can be included or excluded in the device sensor output. The tlv command is introduced to configure the list of Type Length Value (TLVs) in mDNS protocol configuration mode.

NAT SSO support with StackWise Virtual

9500, 9500H

Introduces support for synchronization of the NAT state information across active and standby devices so that if the active device fails, the standby device can take over smoothly and update its software without interrupting In-Service Software Upgrade (ISSU).

OSPF Local RIB Path Limit Enhancement

All Models

The OSPF Local RIB Path Limit feature is designed to restrict the number of paths stored by OSPF in its Local RIB, offering enhanced control over network path selection. With the maximum-paths command enabled, the network administrators can now control the number of paths OSPF installs in the Local RIB for a specific prefix.

Programmability:

• gNMI: Stream Subscriptions with on-Change Mode

• gNMI: SubscribeResponse with sync_response

• YANG Data Models

• YANG Support for Mutiple Next-Hops

All Models

The following programmability features are introduced in this release:

• gNMI: Stream Subscriptions with on-Change Mode: gNMI telemetry supports on-change subscriptions on the same set of models as other telemetry protocols.

• gNMI: SubscribeResponse with sync_response: The sync_response is a boolean field that is part of the SubscribeResponse response message. The sync_response message is sent after the first update message.

• YANG Data Models: For the list of Cisco IOS XE YANG models available with this release, navigate to: https://github.com/YangModels/yang/tree/main/vendor/cisco/xe/17141.

• YANG Support for Mutiple Next-Hops: A new container is added under the next-hop-options choice node to retrieve all next-hops for a given route or prefix. Also, an uptime leaf node is added to provide the timestamp for each next hop.

show reload history command

All Models

The show reload history command is introduced. It displays the reason for device reload and its history.

There are no new WebUI features in this release.

show crypto engine accelerator statistic command

The show crypto engine accelerator statistic command is now available on the C9500X-60YL4D model.

Switch Integrated Security Features (SISF) – Enhanced Throttling Limit for ARP Packets

In Cisco IOS XE Amsterdam 17.3.1, a throttling limit was introduced to mitigate high CPU utilization scenarios. In a five second window, a maximum of 50 ARP broadcast packets per source IP were processed by SISF.

In Cisco IOS XE 17.14.1, this limit is increased to a maximum of 100 ARP broadcast packets for each source IP. When the limit is reached, incoming ARP packets are dropped.

Telemetry: ios_event/platform_component_state_update service

If telemetry is enabled for ios_event/platform_component_state_update service, telemetry events are triggered upon online insertion and removal of SFP or QSFP interface. This is applicable to Cisco Catalyst 9500 Series Switches - High Performance and Cisco Catalyst 9500X Series Switches.