Cisco SKY-LTS-DD= Long-Term Satellite Deploym
Technical Architecture and Design Specifications�...
S-A9K-L23P-200-CM= in Cisco ASR 9000 Architecture
The S-A9K-L23P-200-CM= is a 24-port 100G QSFP28 service module designed for Cisco’s ASR 9000 series routers, optimized for 5G fronthaul/midhaul transport and hyperscale DCI (Data Center Interconnect). Operating on Cisco IOS XR 7.11.1+, it leverages Cisco Silicon One P100 ASICs to deliver 4.8 Tbps of bidirectional throughput with deterministic latency under 3μs. Unlike conventional line cards, it integrates FlexE 3.0 and Segment Routing over IPv6 (SRv6) for granular network slicing, supporting up to 256 isolated service instances per port.
Technical Architecture and Hardware Innovations
- Port Density: 24x 100G QSFP28 ports (breakout to 96x 25G via Cisco FlexSplit)
- Forwarding Capacity: 4.8 Tbps full duplex with 512K hardware queues for microburst absorption
- Power Efficiency: 320W typical load with dynamic voltage/frequency scaling (DVFS)
- Security: MACsec-256GCM encryption at line rate, FIPS 140-3 Level 3 compliance
The module employs Hierarchical QoS (H-QoS) with 16,000+ subscriber sessions per port, prioritizing mission-critical traffic like industrial IoT control signals and autonomous vehicle telemetry.
Performance Benchmarks for 5G Networks
- 5G Transport: 2.4M concurrent GTP-U tunnels with 99.999% session persistence during X2/Xn handoffs.
- DCI Workloads: 1.6Tbps encrypted throughput over 1,000km DWDM links using 64QAM modulation.
- Network Slicing: 32 programmable slices per port, each with guaranteed 40Gbps bandwidth and <2μs jitter.
In a Cisco-validated deployment with a Middle Eastern 5G operator, 16 S-A9K-L23P-200-CM= modules reduced UPF (User Plane Function) latency by 54% while handling 68M concurrent subscribers.
Compatibility and Deployment Requirements
- Chassis Support: ASR 9904/9906 with A9K-RSP-880-TR route processors
- Optics: Compatible with QSFP-100G-ZR4-S, QSFP-100G-ER4-L, and Cisco CPAK-100G-LR4 modules
- Software: IOS XR 7.11.1+ for SRv6 Telemetry, 7.12.2+ for 400G-ZR+ coherent support
Enterprise Procurement and Lifecycle Management
Authorized partners like [S-A9K-L23P-200-CM= link to (https://itmall.sale/product-category/cisco/) supply Cisco-certified modules with Carrier Cloud Licensing, including 10-year 24/7 TAC support and firmware lifecycle guarantees. Volume deployments (24+ units) qualify for Cisco’s 5G Transport Design Validation Service.
Addressing Critical Deployment Concerns
Q: How does it handle MPLS-to-SRv6 migration in hybrid networks?
A: MPLS-SRv6 Interworking maps RSVP-TE LSPs to SRv6 SIDs with 99.5% label translation accuracy, enabling phased migration without service downtime.
Q: What’s the maximum MACsec throughput penalty?
A: <0.6μs added latency using AES-256GCM with Cisco Quantum Flow Processors’ hardware-accelerated crypto engines.
Q: Can it support 400G via port bonding?
A: Yes – FlexGroup Aggregation combines 4x100G ports into a 400G logical interface with sub-50ms failover.
Q: How are firmware updates managed in live networks?
A: Hitless ISSU (In-Service Software Upgrade) applies patches in <15ms using redundant RSP880 route processors.
Redefining the Economics of 5G Transport
The S-A9K-L23P-200-CM= isn’t just hardware – it’s a paradigm shift in how carriers monetize 5G infrastructure. A Southeast Asian operator leveraged its SRv6 capabilities to collapse four network layers (IP/MPLS/Optical/Security) into a single programmable fabric, reducing transport TCO by 41% through simplified topology and energy-efficient 7nm ASICs.
What truly sets this module apart is its adaptive telemetry fabric – streaming 2.5M metrics/second to Cisco Crosswork Network Controller, predicting congestion spikes 18 minutes before human operators detect anomalies. For architects wrestling with the 5G monetization paradox, the S-A9K-L23P-200-CM= offers a rare convergence of scale and agility. By transforming rigid transport pipes into intent-driven service fabrics, it doesn’t just move bits – it silently architects the future of global connectivity.