Release Notes for Cisco 1000 Series Integrated Services Routers

New and Changed Software Features in Cisco IOS XE 17.14.1a

• Enhanced IS-IS Fast Flooding

The IS-IS Fast Flooding feature optimizes LSP transmission to accelerate network convergence by dynamically adjusting the LSP rate based on receiver capability. From Cisco IOS XE 17.14.1a, IS-IS Fast Flooding can be configured using the router isis lsp-fast-flooding command. The LSP transmission can be further customized with arguments such as max-lsp-tx, psnp-interval, and per-interface within the same router isis command, and enhanced by using the isis remote-psnp-delay command. This feature is disabled by default, and requires manual configuration to enable.

• Enhancement to the show reload-history Command

From Cisco IOS XE 17.14.1a, the show reload-history command is modified to show reload history. The output for the command is updated to include crash data, Cisco High Availability (HA) status, and software version.

• MAP-T Customer Edge (CE) Support

From Cisco IOS XE 17.14.1a, the show reload-history command is modified to show reload history. The output for the command is updated to include crash data, Cisco High Availability (HA) status, and software version.

• Support for Suite B Ciphers with GET VPN

From Cisco IOS XE 17.14.1a, this enhancement introduces support for Suite B ciphers with GET VPN on the following platforms and its corresponding models:

1. Cisco ASR 1000 Series Aggregation Services Routers:
2. ASR 1000 with ESP100-X
3. Cisco Catalyst 8300 Series Edge Platforms:
4. C8300-1N1S-4T2X
5. C8300-2N2S-6T
6. Cisco Catalyst 8200 Series Edge Platforms:
7. C8200L-1N-4T
8. Cisco Catalyst 8500 Series Edge Platforms:
9. C8500-12X4QC
10. C8500L-8S4X
11. Cisco 1000 Series Integrated Services Routers:
12. C1131
13. C112X
14. C116X
15. C111X

• Support to Configure VPN Solutions for SD-Routing devices

This release introduces support for the following VPN solutions:

1. FlexVPN
2. GETVPN
3. DMVPN
4. L3VPN
   These VPN solutions can be configured by using Configuration > Configuration Groups > CLI Add-on Profile option in Cisco SD-WAN Manager.

• View Unmodelled Commands on SD-Routing Devices

After an SD-Routing device is deployed, you can view the unmodelled commands on Cisco SD-WAN Manager. The list of unmodelled commands are regenerated if the device reboots.

• YANG Configurational Model Support for SD-Routing Devices

This release introduces support for the following YANG Configurational Models:

1. BGP
2. MPLS
3. RSVP
4. SNMP
5. AAA
6. QOS
7. ACL
8. DHCP

• Configure Secure Service Edge

Secure Service Edge is a cloud solution that provides seamless, transparent, and secure Direct Internet Access (DIA) to protect against internet-based threats. This solution can be configured through Policy Groups by using Cisco SD-WAN Manager.

• This release introduces support for the following in Cisco SD-WAN Manager

1. Transport Profiles
2. Management Profile
3. Service Profile
4. CLI Profile
5. Policy Object Profile

Cube Features

• Secure SIP with TLS 1.3 support

From Cisco IOS XE 17.14.1a onwards, security of the communication between the client and the server is enhanced with the support of Transport Layer Security (TLS) version 1.3 and associated cipher suites.

Resolved Bugs

CSCwi53951 - Packets with unicast MAC get dropped on a Port Channel L2 sub-intf after a router reboot.

CSCwj25493 - Device crashed twice with critical process linux_iosd_image fault on rp_0_0.