C9500-48Y4C-A – 48×1/10/25G SFP28 Ports – 4×40/100G QSFP28 Uplinks – Network Advantage
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C9500-48Y4C-A Description
The C9500-48Y4C-A is a Cisco Catalyst 9500 High Performance 48-port 25G switch shipped with the perpetual Network Advantage license. Forty-eight SFP28 ports run 1G, 10G, or 25G Ethernet on the downlink face, backed by four fixed QSFP28 ports for 40G or 100G uplinks, with the Cisco UADP 3.0 ASIC driving up to 3.2 Tbps of switching capacity for a 1 RU fixed-configuration campus core or aggregation role. The platform also supports StackWise Virtual, so a pair of these switches can run as a single logical core node with multichassis EtherChannel toward the access layer.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9500-48Y4C-A |
|
Network license |
Network Advantage |
|
Downlink ports |
48 x 1G/10G/25G SFP28 |
|
Fixed uplink ports |
4 x 40G/100G QSFP28 |
|
Network module support |
C9500-NM-8X and C9500-NM-2Q are not supported |
|
ASIC |
Cisco UADP 3.0 |
|
Switching capacity |
Up to 3.2 Tbps |
|
Forwarding rate |
Up to 1 Bpps |
|
Default power supply |
C9K-PWR-650WAC-R 650W AC |
|
Power supply options |
C9K-PWR-650WAC-R, C9K-PWR-650WACL-R, C9K-PWR-930WDC-R |
|
Fan tray |
C9K-T1-FANTRAY, up to 4 fans |
|
Minimum software release |
Cisco IOS XE Fuji 16.8.1a |
Product Performance
Key Features
The -A suffix places the C9500-48Y4C hardware on Network Advantage, so full routing, segmentation, and MACsec-256 entitlements travel with the orderable switch PID instead of a separate license add-on.
Forty-eight SFP28 ports carry 1G, 10G, or 25G Ethernet from a single 1 RU chassis, giving the largest fixed downlink count in the Catalyst 9500 high-performance line for fiber-heavy access or aggregation builds.
The four 40G/100G QSFP28 uplinks are built into the chassis, so uplink capacity planning depends on the supported optics path rather than a removable C9500 network module.
Cisco lists both C9500-NM-8X and C9500-NM-2Q as unsupported on C9500-48Y4C, which keeps the uplink count fixed at four ports and rules out treating this chassis like a C9500-16X bundle with swappable modules.
The supported 650W AC, 650W AC low-voltage, and 930W DC supplies pair with the C9K-T1-FANTRAY fan tray, giving 1+1 redundant power and single-fan-failure tolerance in the same FRU family as the rest of the high-performance 9500 line.
Cisco documents StackWise Virtual support with multichassis EtherChannel on fixed 9500 models, letting two C9500-48Y4C-A switches present as one logical core node with SSO and ISSU running over the StackWise Virtual Link.
Application Scenarios
C9500-48Y4C-A fits campus core or aggregation blocks where the design needs high-density 1G, 10G, or 25G SFP28 fiber links feeding into a fixed Catalyst 9500 chassis under Network Advantage.
Deployed as a StackWise Virtual pair, the switch pair operates as a single logical core node with multichassis EtherChannel toward distribution switches.
The four integrated QSFP28 uplinks serve designs that need 40G or 100G core-facing connections without adding a separate uplink module to the chassis.
Product Comparison
|
Parameter |
C9500-48Y4C-A | ||
|---|---|---|---|
|
Product type |
High-performance fixed switch |
High-performance fixed switch |
High-performance fixed switch |
|
SFP28 port count |
48 |
48 |
24 |
|
SFP28 port speeds |
1G/10G/25G |
1G/10G/25G |
1G/10G/25G |
|
Fixed uplink ports |
4 x 40G/100G QSFP28 |
4 x 40G/100G QSFP28 |
4 x 40G/100G QSFP28 |
|
Switching capacity |
Up to 3.2 Tbps |
Up to 3.2 Tbps |
Up to 2.0 Tbps |
|
Forwarding rate |
Up to 1 Bpps |
Up to 1 Bpps |
Up to 1 Bpps |
|
Network license |
Network Advantage |
Network Essentials |
Network Advantage |
|
Default power supply |
C9K-PWR-650WAC-R 650W AC |
C9K-PWR-650WAC-R 650W AC |
C9K-PWR-650WAC-R 650W AC |
|
Network module support |
C9500-NM-8X and C9500-NM-2Q are not supported |
C9500-NM-8X and C9500-NM-2Q are not supported |
C9500-NM-8X and C9500-NM-2Q are not supported |
|
Power supply options |
C9K-PWR-650WAC-R, C9K-PWR-650WACL-R, C9K-PWR-930WDC-R |
C9K-PWR-650WAC-R, C9K-PWR-650WACL-R, C9K-PWR-930WDC-R |
C9K-PWR-650WAC-R, C9K-PWR-650WACL-R, C9K-PWR-930WDC-R |
|
Fan tray |
C9K-T1-FANTRAY |
C9K-T1-FANTRAY |
C9K-T1-FANTRAY |
|
Minimum software release |
Cisco IOS XE Fuji 16.8.1a |
Cisco IOS XE Fuji 16.8.1a |
Cisco IOS XE Fuji 16.8.1a |
- In a C9500-48Y4C-A vs C9500-48Y4C-E comparison the port configuration, switching capacity, and default power supply are identical; stepping down to the -E swaps Network Advantage for Network Essentials, which gives up StackWise Virtual pairing and drops MACsec-256 with WAN MACsec to MACsec-128, so a standalone distribution role that can live with those limits can take the -E at the lower license tier, while any StackWise Virtual or encrypted-interconnect design stays on the -A.
- C9500-48Y4C-A vs C9500-24Y4C-A is a downlink-count decision on the same four 40G/100G QSFP28 uplinks and the same 650W AC default supply: an aggregation point terminating 24 or fewer SFP28 runs can take the 24-port chassis at 2.0 Tbps instead of paying for idle ports, while anything beyond that count needs the 48-port chassis at 3.2 Tbps.
- For deciding which SKU to order, size the SFP28 downlink count first, then settle the license tier, since only C9500-48Y4C-E steps away from Network Advantage in this group and the uplink layout and power family do not separate the three models.
Selection Guide
1. Advantage Or Essentials On The Same Chassis
This SKU embeds Network Advantage, which is what enables StackWise Virtual pairing, MACsec-256 with WAN MACsec, and full routing such as BGP and VXLAN with BGP-EVPN; a distribution role that only needs Layer 2 or small-scale routed access can order C9500-48Y4C-E and give up those capabilities for the lower license tier.
2. Size 48 Ports Against The 24-Port Variant
C9500-24Y4C-A carries the same four fixed 40G/100G uplinks with half the SFP28 downlinks and 2.0 Tbps of capacity, so the number of fiber runs terminating at the aggregation point decides this pair: 24 or fewer runs with no near-term growth points to the 24-port chassis, while more than 24 keeps the order on C9500-48Y4C-A.
3. Fixed Uplinks Cap Expansion
Uplink capacity ends at the four onboard QSFP28 ports because this model accepts no C9500 network modules; a design that expects modular uplink growth needs a module-capable platform such as the C9500-16X chassis from the start.
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
Exact orderable PID |
The line item states C9500-48Y4C-A |
The -A suffix sets Network Advantage for the C9500-48Y4C hardware |
|
RFID selection |
The order explicitly selects C9500-RFID or C9500-RFID-NONE |
Cisco makes this selection mandatory at order time and it cannot be added later if opted out |
|
Downlink count |
The design needs 48 SFP28 ports rather than 24 |
C9500-24Y4C-A is the adjacent Advantage SKU when the SFP28 count is halved |
|
Module assumption |
No C9500-NM-8X or C9500-NM-2Q is added to the bill |
Cisco does not support those network modules on C9500-48Y4C |
|
Power and cooling |
PSU type, redundant PSU choice, power cord, and C9K-T1-FANTRAY spare path match the site plan |
The C9500-48Y4C chassis uses the high-performance 650W/930W power and fan family |
|
Software baseline |
The target release meets Cisco IOS XE Fuji 16.8.1a or later |
Feature and license entitlements assume this minimum baseline |
|
Management interface plan |
Ethernet management port, RJ-45 console, and USB console/host ports are accounted for in the out-of-band access plan |
The C9500-48Y4C chassis carries a fixed set of management ports that installers should not assume matches every 9500 model |
Optional Add-ons
|
Model |
Description |
|---|---|
|
650W AC power supply supported on C9500-48Y4C | |
|
650W AC low-voltage power supply supported on C9500-48Y4C | |
|
930W DC power supply supported on C9500-48Y4C | |
|
C9K-T1-FANTRAY |
Catalyst 9500 fan tray for C9500-32QC, C9500-48Y4C, and C9500-24Y4C |
|
Cisco DNA Advantage 3-year term subscription license for the C9500-48Y4C-A hardware family | |
|
C9500-DNA-A-5Y |
Cisco DNA Advantage 5-year term subscription license for the C9500-48Y4C-A hardware family |
|
C9500-DNA-A-7Y |
Cisco DNA Advantage 7-year term subscription license for the C9500-48Y4C-A hardware family |
|
C9500-DNA-48Y4CEA |
Cisco DNA Essentials-to-Advantage upgrade license specific to the 48-port 25G SKU |
|
19-inch rack mount accessory kit for Cisco Catalyst 9500 Series High-End switches | |
|
C9500-ACCKITH-23I= |
23-inch rack mount accessory kit for Cisco Catalyst 9500 Series High-End switches |
|
Four-point mounting extension rails and brackets for Cisco Catalyst 9500 Series High-End switches | |
|
C9500-RFID |
RFID tag selection for C9500 high-performance switches including C9500-48Y4C |
|
C9500-RFID-NONE |
No-RFID selection for C9500 high-performance switch ordering |
C9500-48Y4C-A Switch Front Panel
|
1 |
48 1G/10G/25G SFP28 ports |
5 |
USB mini Type B console port |
|
2 |
Uplink ports |
6 |
RFID (Optional) |
|
3 |
Ethernet management port |
7 |
Console port (RJ-45 Serial) |
|
4 |
Reset button |
8 |
USB 3.0 host port |
C9500-48Y4C-A Switch Rear Panel
The switch rear panel includes StackWise connectors, StackPower or XPS connectors, ports, fan modules, and power supply modules.
Components Delivered in the Shipping Box
The shipping box contains the model of the switch you ordered and other components needed for installation. Some components are optional, depending on your order.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9500-48Y4C-A | Product type | High-performance fixed core and aggregation switch |
| Network license | Network Advantage | Downlink ports | 48 x 1G/10G/25G SFP28 |
| Fixed uplink ports | 4 x 40G/100G QSFP28 | Network module support | C9500-NM-8X and C9500-NM-2Q are not supported on C9500-48Y4C |
| ASIC | Cisco UADP 3.0 | DRAM / Flash | 16 GB DRAM, 16 GB flash |
| Switching capacity | Up to 3.2 Tbps | Forwarding rate | Up to 1 Bpps |
| MAC address table | Up to 82,000 entries | VLAN IDs | 4,094 |
| IPv4 routes | Up to 256,000 (indirect + direct) | IPv4 host routes | Up to 90,000 (direct + ARP) |
| IPv6 routes | Up to 256,000 (indirect + direct) | IPv6 host routes | Up to 90,000 (direct + NDP) |
| IPv4 / IPv6 multicast routes | Up to 32,000 each | QoS ACL scale (v4/v6) | Up to 16,000 / 8,000 |
| Security ACL scale (v4/v6) | Up to 27,000 / 13,500 | Jumbo frame size | 9,216 bytes |
| Management interfaces | Ethernet management port, RJ-45 console port, USB mini Type B console port, USB 3.0 host port | Minimum software release | Cisco IOS XE Fuji 16.8.1a |
| Power supply slots | 2 | AC input voltage | 90 to 264 VAC |
| Power supply options | C9K-PWR-650WAC-R, C9K-PWR-650WACL-R, C9K-PWR-930WDC-R | BTU output | 1,856 BTU/hr with any supported supply |
| Fan tray | C9K-T1-FANTRAY, up to 4 fans, front-to-back airflow | Acoustic noise | No greater than 71.5 LWAd dB |
| Rack units | 1 RU | Dimensions | 1.73 x 17.5 x 18.0 in. (4.39 x 44.45 x 45.72 cm) |
| Weight | 21.96 lbs (9.96 kg) with 2 power supplies and built-in fan | Operating temperature | 32 to 104 deg F (0 to 40 deg C), up to 10,000 ft altitude at 40 deg C |
| Storage temperature | -4 to 149 deg F (-20 to 65 deg C) | Humidity (operating / storage) | 5% to 90% / 5% to 95%, noncondensing |
| Safety certifications | IEC 60950-1 with amendments, UL 60950-1, CAN/CSA-C22.2 No. 60950-1-07, EN 60950-1:2006, AS/NZS 60950.1:2011, GB 4943-95, NOM-019-SCFI-1998 | EMC compliance | 47 CFR Part 15 Class A, CISPR 32/EN 55032 Class A, ICES-003 Class A, EN 61000-3-2/3-3, EN 55024 |
| Warranty | Cisco Enhanced Limited Lifetime Warranty (E-LLW) with NBD hardware replacement where available and 90 days of 8×5 TAC support | MTBF | 316,960 hours |
Get More Information
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Quality Certifications
Customer Reviews
Questions & Answers
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What is Cisco C9500-48Y4C-A designed for?
-
How is C9500-48Y4C-A different from C9500-48Y4C-E?
-
Can C9500-48Y4C-A support 100G uplinks?
-
How is C9500-48Y4C-A different from C9500-32C-A?
-
Does C9500-48Y4C-A have modular expansion slots?
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Can C9500-48Y4C-A be used for StackWise Virtual?
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What should be checked before buying C9500-48Y4C-A?
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When is C9500-48Y4C-A more than required?
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