Cisco C9500-48Y4C-A Full English Product Description

C9500-48Y4C-A Front View

Product Overview

The Cisco Catalyst C9500-48Y4C-A is a high-density 1RU fixed-form-factor enterprise core & aggregation switch preloaded with the perpetual Network Advantage license, belonging to Cisco flagship Catalyst 9500 switching family. Built on UADP 3.0 ASIC, quad-core 2.4GHz x86 CPU and Cisco IOS XE operating system, it balances flexible multi-rate 25G downlink density and native 100G high-speed uplinks, designed for large campus collapsed core, high-density server aggregation, medium data center leaf-spine fabric, SD-Access fabric border nodes and hybrid multi-cloud gateway deployments.

Port Configuration

48× multi-rate SFP28 downlink ports (auto-negotiate 1G / 10G / 25G) for server, storage and high-speed fiber access aggregation
4× fixed QSFP28 uplink ports, supporting 40G or 100G transceivers for high-bandwidth northbound backbone interconnection
Out-of-band management interfaces: RJ45 console, Mini-USB console, USB Type-A, dedicated 1G Ethernet management port
All ports support hardware MACsec 256-bit encryption, LACP, jumbo frames up to 9198 bytes

Core Hardware Specifications

Switching Capacity: 3.2 Tbps full-duplex non-blocking
Forwarding Rate: 1000 Mpps (1 Bpps) wire-speed packet forwarding
Form Factor: 1U rack-mount, front-to-back airflow
Memory & Storage: 16 GB DDR4 DRAM, 16 GB SSD flash, large shared deep packet buffer for burst traffic absorption
Stacking: StackWise-480 stacking (480 Gbps stacking bandwidth), up to 8 switches per logical stack; supports StackWise Virtual dual-box virtualization for core redundancy
Power & Cooling: Dual hot-swappable platinum-efficiency AC power supplies (1+1 redundancy); field-replaceable redundant fan trays
Environmental: Operating temperature 0°C–40°C; storage -20°C–65°C; 5%–90% non-condensing relative humidity
Reliability: Industry-leading extended MTBF for 24/7 core network operation

Scalability Table Capacities

MAC Address Table: 64,000 entries
IPv4 Routes: 64,000 indirect routes + 32,000 host routes
IPv6 Routes: 32,000 indirect routes + 16,000 host routes
Combined IPv4/IPv6 Multicast Routes: 48,000
Hardware-Accelerated Security ACLs: 18,000 entries
Hardware-Accelerated QoS ACLs: 18,000 entries
Flexible NetFlow Records: Up to 512,000
Supported VLANs: 4,094 VLAN IDs; full SVI Layer 3 inter-VLAN routing

Full Network Advantage (A License) Feature Suite

Complete Advanced Layer 3 Routing

Static routing, RIP, single/multi-area OSPF, full EIGRP, IS-IS, full BGP, HSRP, VRRP, PIM-SM/SSM multicast, MPLS L2/L3 VPN, MVPN, VRF-lite multi-tenant segmentation, Policy-Based Routing (PBR), NAT/PAT, LISP

Hardware-Accelerated Zero-Trust Security

256-bit MACsec port encryption, Cisco TrustSec SGT micro-segmentation, 802.1X authentication, ISE native integration, secure boot, image signature verification, CoPP control plane protection, advanced threat filtering, full SD-Access fabric support

Automation & Programmability

NETCONF/YANG, RESTCONF APIs, Python Guest Shell, container hosting, full Cisco DNA Center intent-based networking compatibility, zero-touch provisioning (ZTP), comprehensive telemetry and ERSPAN

Enterprise-Grade High Availability

ISSU hitless stacking upgrade, NSF/SSO graceful restart, cross-stack LACP link aggregation, hot-swap redundant power supplies and fans for non-disruptive maintenance

Advanced QoS & Multicast Optimization

Hierarchical multi-level QoS, traffic policing/shaping, WRED congestion control, hardware multicast replication for IPTV, video conferencing and large-scale media streaming

Typical Deployment Scenarios

Large enterprise campus collapsed core / high-density distribution layer
Medium data center leaf-spine fabric with mass 25G server aggregation
SD-Access fabric border node for zero-trust campus segmentation
Inter-building high-speed fiber backbone with 100G uplink aggregation
Hybrid multi-cloud gateway for high-throughput workload interconnection
Virtualization & storage network aggregation requiring 25G port density

Short Catalog Version (For BOM & Quotation)

Cisco C9500-48Y4C-A Catalyst 9500 Switch, 48×1/10/25G SFP28 + 4×40/100G QSFP28, Network Advantage License

1RU high-performance core/aggregation switch with 48 multi-rate 25G SFP28 downlinks and 4 native 100G QSFP28 uplinks, UADP 3.0 ASIC, 3.2Tbps switching capacity, StackWise-480 stacking, dual redundant platinum AC power supplies, pre-installed full Network Advantage IOS XE license, complete Layer 3 routing, TrustSec micro-segmentation, SD-Access readiness and full DNA Center automation support, ideal for high-density campus core and 25G server aggregation data center deployments.


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