CISCO FLS-A901-4S= FLS-A901-4S ASR 901 Series Feature Licenses
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FLS-A901-4S= Overview
FLS-A901-4S= Four-SFP-Port Paper License
FLS-A901-4S= is a physical paper-license spare for the Cisco ASR 901 platform. Cisco maps it to the Gige4SfpUpgrade feature, enabling four SFP Gigabit Ethernet ports on supported 1-Gigabit models. This SKU is not an ASR 9000 router and does not ship a chassis, optics, cables or additional port hardware.
Match the exact chassis before ordering
Cisco's licensing table associates this feature with A901-4C-FT-D and A901-4C-F-D. It enables SFP ports 8 through 11 on those supported models. Record the target router PID and serial, installed IOS release and current license inventory; a license intended for a different ASR 901 hardware family can install as unsupported.
Paper entitlement handling
The trailing equals sign identifies the spare paper-license form. Preserve the PAK or entitlement document, purchase record and device binding. Confirm that the code has not already been consumed and that Cisco can still support the intended activation workflow. The electronic counterpart is L-FLS-A901-4S= and must not be substituted without agreeing the delivery method.
Retired product boundary
Cisco lists the ASR 901 and this physical upgrade among end-of-sale products and states that no replacement is currently offered in that bulletin. Treat the purchase as support for an installed legacy platform: verify software compatibility, entitlement transferability and recovery records before relying on it.
Official evidence: Cisco exact paper-license description, Cisco port and chassis licensing map and Cisco ASR 901 lifecycle notice.
FLS-A901-4S= Specification
| Exact model / SKU | FLS-A901-4S= |
| Exact PID | FLS-A901-4S= |
| Product type | Physical paper license / spare; no router hardware |
| Enabled feature | Gige4SfpUpgrade |
| Port scope | Four SFP GE ports, numbered 8 through 11 |
| Supported models | A901-4C-FT-D and A901-4C-F-D per Cisco licensing guide |
| Not included | Router, SFP transceivers, cables and physical port hardware |
| Delivery distinction | Paper PAK; electronic counterpart is L-FLS-A901-4S= |
| Activation checks | Target serial, IOS release, current licenses, PAK status and entitlement record |
| Lifecycle | ASR 901 license is end of sale; Cisco bulletin lists no replacement |
| Source match | FLS-A901-4S=: exact ASR 901 four-SFP-port paper license with supported chassis, port numbers and activation boundary verified |
| Official manufacturer reference | Cisco exact FLS-A901-4S= license table |
FLS-A901-4S= Ordering Information
This listing is a software license, subscription or support entitlement rather than standalone hardware. Confirm the covered device model, service level, contract duration, activation region, start date and delivery method before ordering.
FLS-A901-4S= FAQ
What does the FLS-A901-4S= entitlement cover?
FLS-A901-4S Cisco ASR 901 Series Feature Licenses is listed as a CISCO license, subscription or support entitlement. Confirm the protected device or account, included services and exact contract term on the quotation.
Is FLS-A901-4S= a physical hardware appliance?
This listing should not be assumed to include hardware. Confirm whether fulfillment uses an activation code, electronic entitlement, account registration or another vendor process.
What must be checked before ordering FLS-A901-4S=?
Validate the parent device serial number or model, service start date, region, renewal eligibility, transfer restrictions and required vendor account before purchase.
What is the price of FLS-A901-4S=?
The current reference price for FLS-A901-4S= is US$ 1,100.00. Final pricing can change based on stock, quantity, configuration and delivery destination.
Related products
Related FLS-A901-4S=
FLS-A901-4 Cisco ASR 901 Series Feature Licenses
FLS-A901-4= is a Cisco ASR 901 paper license for the four flexible Gigabit Ethernet port feature on supported 10-Gigabit ASR 901 models; it does not include a router, optics, or port hardware.
Cisco FLS-A901-4T= ASR 901 Four-Copper-GE Paper License
FLS-A901-4T= is the paper-license article for a four-port copper Gigabit Ethernet upgrade on supported Cisco ASR 901 routers. It corresponds to Gige4CuUpgrade, not an Ethernet switch or a hardware interface module.
Cisco FLS-A901-2Z ASR 901 Two-Port 10GE Upgrade License
FLS-A901-2Z is the Cisco ASR 901 two-port 10GE upgrade feature license, identified as physical fulfillment in Cisco EOL13051. It is not a four-year DNA Premier subscription or a switch chassis.
Cisco L-FLS-A901-4T= ASR 901 Four-Port Copper GE Electronic Upgrade License
L-FLS-A901-4T= is Cisco's electronic-delivery license for activating four copper Gigabit Ethernet ports on the applicable ASR 901 1-Gigabit Ethernet model group.
Cisco L-FLS-A901-4= ASR 901 Four-Port Flexible GE Electronic Upgrade License
L-FLS-A901-4= is Cisco's electronic-delivery ASR 901 license for a four-port Gigabit Ethernet upgrade on the 10-Gigabit Ethernet model group; it is not hardware.
Cisco L-FLS-A901-4S= ASR 901 Electronic Four-SFP GE License
L-FLS-A901-4S= is the electronic-delivery ASR 901 four-port SFP Gigabit Ethernet upgrade license. Cisco maps Gige4SfpUpgrade to A901-4C-F-D and A901-4C-FT-D, rather than the ASR 9000 family.
Cisco L-FLS-A901-2Z= ASR 901 Electronic 10GE Port Upgrade License
L-FLS-A901-2Z= is the electronic fulfillment article for the Cisco ASR 901 two-port 10GE upgrade. Cisco lists it with the 10gigUpgrade feature for applicable A901-6CZ chassis, separately from the physical FLS-A901-2Z article.
Cisco FLSASR903-ATM= ASR 903 ATM License (Paper PAK)
Cisco FLSASR903-ATM= is the ASR 903 ATM software license supplied as a physical paper PAK. It is a license entitlement for the ASR 903 platform, not an ATM interface module or a network switch.