ISR4321-AX/K9 Cisco ISR 4321 Application Experience Bundle Router

ISR 4321 Application Experience Bundle

ISR4321-AX/K9 is an exact Cisco order on the ISR 4321 with two onboard Gigabit Ethernet interfaces, two NIM slots and one ISC slot. Bundle boundary: AX combines APP and SEC technology-package scope; UC entitlement and PVDM voice resources are not implied.

Throughput and workload boundary

50 Mbps default aggregate throughput, upgradeable to 100 Mbps with the documented performance license. Published aggregate throughput is a licensing boundary; encryption, application inspection, voice media and modular services can change measured workload capacity.

Exact procurement checks

Reconcile APP and SEC rights, performance license, NIMs, memory, flash and software release. Confirm whether the branch still requires application visibility and path-control functions before selecting a migration subscription.

Model-specific migration evidence

Create an application-path baseline with recognized traffic classes, QoS markings, brownout thresholds, tunnel policy and logging volume. Replay that profile on the proposed replacement and retain before/after measurements with the order record.

Lifecycle plan

Cisco ended sale for this ISR 4000 generation and identifies 30 November 2028 as the last date of support for the affected platform family. Evaluate the published Catalyst 8200 or 8300 migration family against exact ports, NIM functions, performance, licenses and voice resources; do not assume module or entitlement transfer.

Receiving record

Capture exact PID and serial, memory, flash, power supply, NIM/ISC/service-module inventory, PVDM where applicable, IOS XE release, performance license and active technology-package entitlements. Save configuration and test evidence with the asset.

Official sources: Cisco ISR 4000 data sheet and Cisco ISR 4000 lifecycle notice.