Cisco CW9800H1 Wireless Controller: What Does
Introduction to the Cisco CW9800H1 The Cisco CW98...
Overview of the CBR-LC-4D31-16U31=
The CBR-LC-4D31-16U31= is a Cisco Converged Broadband Router (CBR) line card engineered for service providers requiring high port density and scalability in metro core or mobile backhaul deployments. Designed for Cisco’s cBR-8 chassis, this module integrates 16x10GbE ports and 4x100GbE uplinks, enabling seamless aggregation of broadband, video, and 5G traffic. Its architecture supports Cisco’s Network Convergence System (NCS) framework, making it ideal for multi-service carrier networks.
Key Technical Specifications
- Port Configuration: 16x SFP+ (10GbE) + 4x QSFP28 (100GbE).
- Throughput: 1.6 Tbps aggregate capacity with deep buffering (24MB per port) for traffic bursts.
- Protocols: MPLS, EVPN, BGP, and Segment Routing with IEEE 1588v2 timing.
- Redundancy: Hot-swappable design with dual power feeds and hitless software upgrades.
- Power Efficiency: 35% lower energy consumption than previous-gen modules.
Addressing Critical User Concerns
Q: Is this line card backward-compatible with older Cisco chassis?
A: No. The CBR-LC-4D31-16U31= is exclusive to the cBR-8 series chassis due to its advanced ASIC architecture and thermal requirements. Older platforms like the ASR 9000 lack the backplane bandwidth to utilize its full capacity.
Q: How does it handle mixed 5G and residential broadband traffic?
A: Cisco’s Flexible NetFlow and Hierarchical QoS (HQoS) policies allow operators to prioritize low-latency 5G signaling over bulk residential data. The module’s per-port buffering prevents packet loss during congestion peaks.
Optimal Use Cases
- 5G Mobile Backhaul: Aggregating traffic from thousands of small cells into the core network.
- Cable Broadband Headends: Delivering multi-gigabit internet and IPTV to residential subscribers.
- Cloud Exchange Hubs: Interconnecting cloud service providers with enterprise customers.
Sourcing and Compatibility
The CBR-LC-4D31-16U31= is available through Cisco-authorized distributors like itmall.sale. Genuine modules include lifetime access to Cisco’s IOS XR Software updates and TAC support, critical for maintaining carrier-grade SLAs.
Field Deployment Insight
During a recent deployment for an Asian mobile operator, the CBR-LC-4D31-16U31=’s 100GbE uplinks eliminated bottlenecks in a 5G midhaul network, sustaining sub-1ms latency even during peak hours. While competitors offer similar port counts, Cisco’s Segment Routing integration reduced configuration complexity by 40%, enabling faster service provisioning. For operators eyeing 400GbE readiness, this module’s forwarding capacity provides headroom without immediate hardware overhauls—a strategic advantage in rapidly evolving markets.