Cisco 7606-S vs Catalyst 8500-12X
The CISCO7606-S is an end-of-life Supervisor 720 era chassis router; the Catalyst 8500-12X (C8500-12X) is its modern, fixed 1RU SD-WAN aggregation replacement with a 3rd-gen QFP ASIC. For any new or refreshed WAN edge, migrate to the C8500-12X for far higher encrypted throughput, native SD-WAN, and a supportable software stack.
Cisco 7606-S Router
A six-slot 7600 Series modular chassis from the Catalyst 6500/Sup720 generation, used for carrier and large-enterprise aggregation.
- 6-slot chassis: up to 2 supervisor/RP slots plus 4 line-card slots
- Supervisor Engine 720 with up to 720 Gbps backplane and 480 Gbps system throughput
- Runs classic Cisco IOS / IOS-XE on RSP720-class engines, no native SD-WAN
- End of sale and end of support; no TAA path for new procurement
Cisco Catalyst 8500-12X
A compact 1RU SD-WAN and WAN aggregation edge platform built on Cisco's 3rd-generation Quantum Flow Processor (QFP).
- 12x 1/10GE SFP+ ports in a fixed 1RU form factor
- Up to 200 Gbps CEF forwarding and hardware crypto on the QFP 3.0 ASIC
- Native Cisco SD-WAN (vManage) and IOS-XE with SASE/Catalyst integration
- Current, TAA-compliant, GPC-payable platform under active support
Cisco 7606-S Router vs Cisco Catalyst 8500-12X: spec comparison
| Spec | Cisco 7606-S Router | Cisco Catalyst 8500-12X |
|---|---|---|
| Form factor | Modular 6-slot chassis (multi-RU) | Fixed 1RU appliance |
| Interfaces | Modular line cards / SPAs (1GE, 10GE) | 12x 1/10GE SFP+ fixed |
| System throughput | Up to 480 Gbps with Sup720 | Up to 200 Gbps CEF forwarding |
| Forwarding rate | Up to 240 Mpps (distributed) | Multi-hundred-Mpps via QFP 3.0 |
| Forwarding ASIC | PFC3 / Supervisor 720 generation | 3rd-gen Quantum Flow Processor (QFP) |
| IPsec VPN throughput | Limited, service-module dependent | Up to 46 Gbps IPsec; ~33 Gbps SD-WAN IPsec |
| SD-WAN | None (legacy WAN/MPLS aggregation) | Native Cisco SD-WAN (vManage) |
| Software | Classic Cisco IOS / IOS-XE (Sup720) | Cisco IOS-XE (SD-WAN and autonomous) |
| Redundancy | Dual supervisors and power supplies | Dual power supplies (fixed platform) |
| Lifecycle status | End of sale and end of support | Current, actively supported |
Choose Cisco 7606-S Router if
Only keep a 7606-S short term if you have an existing chassis with specialized SPAs/service modules still in production and a near-term decommission date; it is not a valid choice for new buys.
Choose Cisco Catalyst 8500-12X if
Choose the C8500-12X for any new WAN edge or SD-WAN aggregation site that needs high encrypted throughput, 10GE density, and a supportable, TAA-compliant platform.
Verdict
Migrate from the CISCO7606-S to the Catalyst 8500-12X. The 7606-S is past end of support with no SD-WAN path, while the C8500-12X delivers dramatically higher IPsec throughput, native Cisco SD-WAN, and current security in a 1RU footprint. The only reason to retain a 7606-S is a short-term bridge while you finish a planned migration.
Frequently asked questions
Is the Cisco 7606-S end of life?
Yes. The CISCO7606-S chassis and its Supervisor 720 engines are past end of sale and end of support, so there are no new software fixes or TAC hardware coverage for new deployments.
What replaces the Cisco 7606-S for SD-WAN?
The Catalyst 8500 Series, and specifically the C8500-12X, is the modern aggregation replacement. It adds native Cisco SD-WAN and hardware-accelerated IPsec that the 7606-S never had.
Does the C8500-12X support 10GE like the 7606-S line cards?
Yes. The C8500-12X provides 12 fixed 1/10GE SFP+ ports, covering most aggregation roles that previously needed 7600 10GE line cards.
Is the Catalyst 8500-12X TAA compliant for federal buyers?
Cisco offers TAA-compliant configurations of current Catalyst 8500 platforms; confirm the exact TAA part option at quote time for GPC and federal contract purchases.
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Specs are for planning and may change; Uniqcli confirms the current Cisco bill of materials and pricing on your quote. Cisco, Catalyst, Nexus, Meraki, and Firepower are trademarks of Cisco Systems, Inc.; Uniqcli LLC is an independent authorized Cisco partner.