451356-001 - HPE 451356-001 Cisco Catalyst 3120G 1Gbps Blade Switch

Name: HPE 451356-001 Cisco Catalyst 3120G 1Gbps Blade Switch
Brand: HP
SKU: 451356-001
Price: 98 USD
Availability: InStock

451356-001 - HPE 451356-001 Cisco Catalyst 3120G 1Gbps Blade Switch | US IT Hardware

Product overview

The HPE Cisco Catalyst 3120G is a 1Gbps Ethernet blade switch designed for HPE BladeSystem c7000 enclosures, delivering wire-speed switching across 16 internal 1Gb ports and 4 external 10/100/1000BASE-T ports. The switch supports flexible copper and fiber uplinks via SFP modules, enabling both standalone and aggregated bandwidth deployments. With 256MB DDR SDRAM, 64MB Flash memory, and configurable MTU up to 9018 bytes for jumbo frames, it handles demanding data center workloads. Up to nine 3120 switches can be stacked into a single virtual switch with 64Gb stacking fabric, eliminating single points of failure. The device provides comprehensive Layer 2 switching with optional Layer 3 routing and IPv6 support through firmware upgrades. Advanced security features include ACLs, authentication, and port-level access control. Cross-switch QoS enables 802.1p CoS and DSCP classification across virtual blade systems. Management via CLI, SNMP v1/v2c/v3, and Telnet ensures operational consistency with industry-standard Cisco tools.

16 x 1Gbps internal ports with wire-speed switching
Stacking support for up to 9 switches with 64Gb fabric
Advanced QoS with 802.1p CoS and DSCP classification
Flexible copper and fiber uplinks for mixed deployments
59.2 Mpps forwarding rate with jumbo frame support
Comprehensive ACL and port-level security controls

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Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	451356-001
Brand	HP
Condition	Refurbished
Model	3120G
Product Line	BladeSystem c-Class; Cisco Catalyst
Product Type	Ethernet Blade Switch
StackWise Ports	Present
Management Protocols	SNMP v1, v2c, v3, Telnet
Virtual Blade Switch Technology	Supported

Network & Communication

Ethernet Speed

Compatible systems

Compatible with HPE BladeSystem c7000 Enclosures

Hewlett Packard Enterprise BladeSystem
Model: c7000 Enclosure
Form factor: Blade
Generation: c-Class
Mandatory rear system component

Best for

Blade System Consolidation
Provides integrated switching within HPE BladeSystem c7000 enclosures, reducing external cabling and simplifying server-to-network connectivity for virtualized environments.
Data Center Aggregation
Supports bandwidth aggregation across multiple enclosures using 1Gb and optional 10Gb uplinks, enabling high-throughput inter-blade communication and storage access.
High-Availability Clusters
Stacking capability allows up to nine switches with 64Gb fabric and redundant ring architecture, eliminating single points of failure for mission-critical applications.
Virtualized Infrastructure
Wire-speed switching on 16 internal 1Gb ports with QoS and VLAN support enables efficient virtual machine traffic isolation and prioritization.
Enterprise Security Networks
Advanced security features including ACLs, authentication, and port-level access control support compliance requirements in regulated data center environments.

Details

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Forwarding Rate	59.2 million packets per second (mpps)

Switching Fabric	128 Gbps

Network Interfaces	Gigabit Ethernet with stacking and IP services

Form Factor	Blade switch for HPE BladeSystem c7000 Enclosures
Blade Slot Configuration	Designed for HP BladeSystem c-Class

Interface/Ports

Console Port	1x Console Port
Interface Type	SPS-Switch Ethernet 1G
X2 Transceiver Slots	2x X2 slots for TwinGig Modules or X2 Transceivers
Uplink Ports (Gigabit Ethernet)	Up to 8 ports (4x 10/100/1000BASE-T + 4x SFP with TwinGig Converters)

Frequently asked questions

What is the maximum number of blade servers this switch can support?

The 3120G supports 16 internal 1Gbps ports for blade server connectivity within a single BladeSystem c7000 enclosure. Each port can connect to one blade server, providing up to 16 server connections per switch. Multiple switches can be stacked (up to 9) to support larger deployments across multiple enclosures.

Can this switch be used outside of HPE BladeSystem enclosures?

The 3120G is specifically designed as a blade switch for HPE BladeSystem c7000 enclosures and functions as an integrated component within those systems. It is not designed for standalone rack-mount deployment. The 3120X variant offers 10Gb uplinks for higher-bandwidth aggregation scenarios.

What uplink options are available for connecting to core switches?

The 3120G provides flexible uplink options including 4 external 10/100/1000BASE-T RJ-45 ports and 4 external 10/100/1000 SFP-based ports supporting Cisco Fiber SX/LX modules. Up to 8 external uplink ports can be configured, allowing both copper and fiber connections simultaneously for redundancy and mixed-media deployments.

How does stacking improve network reliability?

Stacking up to 9 switches creates a single virtual switch with 64Gb stacking fabric using redundant ring topology. This eliminates single points of failure and enables automatic failover if one switch fails. All stacked switches are managed as one logical entity with a single IP address, simplifying operations and improving fault tolerance.

What memory and storage specifications support this switch?

The 3120G includes 256MB DDR SDRAM and 64MB Flash memory. These specifications support MAC table scalability, routing entries, security policies, and QoS configurations required for enterprise deployments. Configurable MTU up to 9018 bytes enables jumbo frame support for high-performance storage and video applications.

Does this switch support Layer 3 routing and IPv6?

The 3120G supports Layer 2 switching by default. Full Layer 3 routing and IPv6 network compatibility can be enabled through advanced firmware add-ons, providing upgrade flexibility without hardware replacement. This allows organizations to start with basic switching and add routing capabilities as requirements evolve.

What management interfaces are available?

Management options include CLI-based console for out-of-band management, SNMP v1/v2c/v3 for in-band monitoring, and Telnet interface support. The switch uses familiar Cisco IOS CLI and integrates with CiscoWorks management tools, ensuring operational consistency with standard Cisco infrastructure.

HPE 451356-001 Cisco Catalyst 3120G 1Gbps Blade Switch