ASR5K-00-CS01CSFB - Cisco Circuit Switched Fallback (SGs Intfc), 1K sessions

ASR5K-00-CS01CSFB Software Entitlement Identity

ASR5K-00-CS01CSFB is a Cisco ASR 5000 / StarOS software-license order code. It is not an ASR chassis or a physical WAN router. This page must be used to verify a software entitlement, not to select ports, power supplies, airflow, rack hardware or cabling.

Cisco's current ASR5K software end-of-life table identifies this exact PID as Circuit Switched Fallback (SGs Intfc), 1K sessions.

What this order does not include

No ASR 5000 chassis, packet-processing card, interface module, cable, power component, rack accessory or physical appliance is included by this software PID. Hardware availability and compatibility must be handled as separate order lines.

Exact feature and capacity evidence

The public Cisco table supplies the exact description shown above and identifies a 1K capacity unit. Do not extend that statement to a different ASR5K, ASR55 or LIF5K code.

PID-specific procurement case

For this line, establish a technical rejection path before ordering. Name the approver who can reject an incorrect entitlement, the evidence deadline, supplier correction route and financial hold. This prevents schedule pressure from converting uncertainty into acceptance.

Acceptance record for this line

For this exact order line, the accountable reviewer is the service assurance lead. The required evidence package combines the support-contract mapping, entitlement identifier and escalation contact; review it before quote approval. If any identifier, account destination, platform scope or capacity statement conflicts, escalate the mismatch to the platform owner and authorized source. Close the record only when another engineer can reproduce the entitlement decision from the stored evidence without relying on the product-page wording.

Entitlement identity

Require the Cisco quotation and entitlement record to repeat the complete PID, quantity and commercial term. Reject a line that shortens the code or replaces it with a family label because adjacent ASR5K licenses can authorize different functions and capacities. The approver should sign the exact order string and retain the Cisco source used to interpret it. If the source and quotation disagree, stop release and ask Cisco to resolve the discrepancy.

Feature dependency

Ask Cisco or the authorized source for prerequisite features, base licenses and release constraints. A feature entitlement may still be unusable when the required service, interface, charging function or policy package is absent. List every prerequisite as an owned configuration item. Verify those dependencies in staging or a controlled maintenance window before declaring the new feature available.

Migration planning

Link the line item to the approved ASR5K migration design, target release and replacement platform. Available inventory does not by itself establish continued support or compatibility with the planned core-network architecture. Set a dated decision for continued use, migration or retirement. Recheck product notices before buying extra capacity because lifecycle conditions can change after a quote is issued.

Support coverage

Verify which support contract covers software assistance, defect handling and entitlement administration. Record the contract owner and escalation route because a software PID does not automatically include every support service. Support ownership should include contract number, covered node and entitlement administrator. Escalation details belong in the operational record, not only in procurement email.

Commercial reconciliation

Reconcile the purchase order, Cisco sales order, entitlement identifier and target Smart Account. Resolve quantity or PID mismatches before the license is consumed because corrections become harder after activation. Receiving should verify all identifiers while the supplier can still correct them. Attach the final account destination and activation owner to the accepted line.

Lifecycle evidence

Review Cisco's current product notice and support documentation on the decision date. Record the exact PID match; do not apply an end-of-sale date from a related code when the exact order line is absent from the notice. Capture the notice revision date and whether the exact PID is present. If it is absent, document that lifecycle remains quote-verified rather than importing a date from another product.

Lifecycle and migration check

The Cisco bulletin classifies the affected line as application software, lists March 31, 2025 as the end-of-sale date and July 31, 2027 as the last date of support. Confirm active support-contract terms and the migration path before purchase.

Related ASR 5000 license records

• ASR5K-00-PW01ICSR software entitlement
• ASR5K-00-SN01DIRT software entitlement
• ASR5K-00-CS01E-K9 software entitlement

Official Cisco references

• Cisco ASR5K software end-of-life announcement and PID table
• Cisco ASR 5500 Smart Licensing administration guide
• Cisco ASR 5000 Series support portal