Release Notes for Cisco ASR 1000 Series

New and Changed Software Features in Cisco IOS XE 17.14.1a

• DC-PE Router in Cisco ACI to SR-MPLS Hand-off

From Cisco IOS XE 17.14.1a, Cisco ASR 1000 Series Aggregation Services Routers and Cisco Catalyst 8500 Series Edge Platforms can be used as intermediate DC-PE devices in Cisco ACI to SR-MPLS hand-off interconnection. SR-MPLS hand-off is an interconnection option that enables Cisco ACI to WAN interconnect using Segment Routing (SR) MPLS underlay.

• 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.

• Increase in L2TPv3 Scalability

From Cisco IOS XE 17.14.1a, the capacity for unidimensional scalability of L2TPv3 tunnel is increased to 12,000 for the following platforms:

1. Cisco ASR 1000 Series Aggregation Services Routers using RP3 with ESP200-X and ESP100-X
2. Cisco Catalyst 8500 Series Edge Platforms
   The scalability is increased to 8000 for Cisco Catalyst 8500L-8S4X Platform.

• IP Endpoint Delay Measurement and Liveness Monitoring

This feature enables you to measure the end-to-end delay and monitor liveness towards either a specified IPv4 or IPv6 endpoint. From Cisco IOS XE 17.14.1a, you can be configure this feature using the performance-measurement endpoint and performance-measurement delay-profile endpoint commands.

• QFP Drops Threshold and Warning

From Cisco IOS XE 17.14.1a, this feature enables you to configure the warning threshold for each drop cause, and the total QFP drop in packets per second. If the configured threshold exceeds, then a rate-limited syslog warning is generated. You can configure the threshold using the platform qfp drops threshold command.

• 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

• Configuration Group Enhancements

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

• 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.

• 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

• 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

• 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.

• Voltage and Current Metrics

Power Entry Module (PEM) sensors are critical components in the device that are responsible for monitoring various aspects of the power supply, such as voltage, current, and sometimes temperature, to ensure the device operates within safe and efficient parameters. From Cisco IOS XE 17.14.1a, you can use the show environment command to display the PEM sensor readings in mV (milli-volt) and mA (milli-ampere) for your devices.

Programmability Features

• 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.

Cisco Unified Border Element (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

CSCwh94906 - Device WLC segmentation fault crash with Network Mobility Services Protocol (NMSP).
CSCwi49846 - ftmd crashed when SIG GRE tunnels configs are removed.
CSCwi55725 - CLI config group issue.
CSCwi61369 - Device may unexpectedly reload due to SIGABRT.
CSCwi35716 - AAR backup preferred color not working as expected.
CSCwi53306 - Unknown appID in ZBFW HSL log.
CSCwf84567 - Unexpected reload after reconnecting.
CSCwi14178 - Failed to connect to device: x.x.x.x Port: 830 user: vmanage-admin error: Connection failed.
CSCwj25493 - Device crashed twice with Critical process linux_iosd_image fault on rp_0_0
CSCwi40603 - Memory leak in the Crypto IKMP process.
CSCwf08658 - Edge devices will flap the BFD sessions if we are in a non-equilibrium state and have symmetric NAT.
CSCwi35177 - Device crash caused by continuous interface flap, interface associated with many IPSec interfaces.
CSCwj34010 - TLOC extension is missing on the interface in device leading to incorrect control.
CSCwi60266 - Device with enterprise certificates not forming control connections with controllers after upgrade.
CSCwi67983 - Tracker state log is missing when DNS Query fails.
CSCwi53951 - Packets with Unicast MAC get dropped on a Port Channel L2 Sub-intf after a device reboot.
CSCwb25507 - CWMP: Add vendor specific parameter for NBAR protocol pack version.
CSCwi53549 - Device crash with reason: Critical process fman_fp_image fault on fp_0_0 (rc=134).
CSCwi82548 - Crash in IKEv2 Cluster Load Balancer.
CSCwi51381 - TrapOID of CISCO-BFD-STATE-CHANGE is different from MIB file.
CSCwh09033 - Device unable to boot with module.
CSCwf00276 - Packets with L2TP headers cause device to crash.
CSCwi78365 - Trim installed certificate on upgrade.
CSCwi85293 - IKEv2 IPv6 Cluster Load balance: Secondary in cluster unable to connect to cluster in case of FVRF.
CSCwi86698 - No error message while using multicast address as system-ip in device.
CSCwj06622 - Segmentation fault and core files are seen on OS in controller-managed due to speedtest.
CSCwi16111 - IPv6 TCP adjust-MSS not working after delete and reconfigure.
CSCwi62230 - SIG tunnel: 'SIG STATE' is showing blank value.
CSCwf98902 - Unexpected reboot on OS during longevity test.
CSCwj27545 - Device crashing due to ftmd.
CSCwi62239 - %MGMTVRF-3-INTF_ATTACH_FAIL error after configuring loopback management VRF then removing it.
CSCwj70773 - Unable to create a portchannel interface with maximum number limit

Open Bugs

CSCwj04575 - Device crashed during SNMPwalk when removing SFP.
CSCwj25508 - Device reports incorrect DOM values over SNMP.
CSCwj48393 - Service with no priority is not working as expected.
CSCwj48421 - %CRYPTO-4-RECVD_PKT_INV_SPI: decaps: received IPSEC packet has an invalid SPI.
CSCwj03621 - Ping with smaller packet size is failing on MACSEC enabled port.
CSCwj09284 - Unexpected reboot in device due to SSL.
CSCwj40589 - Endpoint tracker using DNS does not log DOWN message when DNS server reachability is lost.
CSCwj26085 - Control connections in TLS with mode manage goes to trying state with UTD.
CSCwj45177 - "dmidecode: command not found" error seen executing show certificate validity.
CSCwj34578 - NAT46 translations are dropped when device is also Carrier Supporting Carrier CE.
CSCwi81026 - BFD Sessions Flapping During IPSEC Rekey in Scaled Environment.
CSCwj45130 - Segmentation Fault - Process = IPSEC dummy packet process.
CSCwi59854 - show policy service-path command gives inconsistent results with app name specified.
CSCwj02661 - UTD signature update failure and device not recording the update.
CSCwj43905 - Unexpected reboot due to uCode failure.
CSCwj02628 - Speed-test not working for the device.
CSCwi77159 - Some of the objects of CISCO-SDWAN-APP-ROUTE-MIB are not implemented.
CSCwj40223 - AppRouteStatisticsTable sequence misordered in CISCO-SDWAN-APP-ROUTE-MIB or OS returns the wrong order.
CSCwj49946 - Device | cpp-mcplo-ucode | None PPPoE get session.
CSCwj32347 - DIA Endpoint tracker not working with ECMP routes when Loopback is used as Source.
CSCwj27108 - Device not balancing traffic to default route.
CSCwj49941 - DNS-snoop-agent has TCAM entry with all zeros for some regex patterns.
CSCwj31354 - Template push failure due to service timestamps.
CSCwj30334 - CVLA uCode crash when attempting merge on used block.
CSCwj13681 - Device can only store 64 FQDN patterns, but the configuration allows entry of more than 64.