658247-B21 - HPE 6125G Ethernet Blade Switch Switch

Name: 658247-B21 - HPE 6125G Ethernet Blade Switch Switch
Brand: HPE
SKU: 658247-B21
Price: 90 USD
Availability: InStock

658247-B21 - HPE 6125G Ethernet Blade Switch Switch | US IT Hardware

Product overview

The HPE 658247-B21 is a managed Layer 3 Gigabit Ethernet blade switch purpose-built for HPE c-Class BladeSystem enclosures. It delivers 16 downlink ports (1Gb Ethernet) and 8 uplink ports (1Gb Ethernet), providing 32K MAC address table capacity and support for advanced routing protocols including OSPF, BGP, ECMP, and VRRP. The switch features 1GB RAM, 256MB flash memory, and comprehensive Layer 3 capabilities with IGMP snooping, Spanning Tree variants (STP/RSTP/MSTP), and dynamic VLAN support. Environmental specifications include operating temperatures from 50°F to 95°F and storage range of -40°F to 158°F. The modular form factor integrates seamlessly into blade chassis, supporting up to 1024 IGMP groups and jumbo frames up to 9220 bytes. Ideal for enterprise data center blade deployments requiring consolidated switching with advanced routing and security features.

16x 1Gb downlinks and 8x 1Gb uplinks for blade connectivity.
Layer 3 routing with OSPF, BGP, ECMP, and VRRP support.
32K MAC address table and 1024 IGMP group capacity.
Jumbo frame support up to 9220 bytes for large data transfers.
Advanced security with RADIUS, SSH2, and TACACS+ authentication.
Modular blade form factor integrates into c-Class BladeSystem.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
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 #	658247-B21
Brand	HPE
Condition	Refurbished
Model	6125G Ethernet Blade Switch
Subtype	Gigabit Ethernet blade switch
Stackable	Yes (stackable architecture)
IGMP Groups	1024 groups maximum
Subcategory	Network hubs and switches
Product Line	HPE BladeSystem
Product Type	Managed Layer 3 Gigabit Ethernet Blade Switch
VLAN Features	Dynamic VLAN support, GVRP, 802.1Q tagging, 802.1p priority

Compatible systems

The 658247-B21 is a blade-integrated switch compatible exclusively with HPE c-Class BladeSystem enclosures (c3000, c7000). It connects directly to blade server Ethernet adapters via internal fabric and provides external uplink ports for data center network integration. No external operating system required; runs embedded HPE firmware.

Hewlett-Packard Enterprise BladeSystem c-Class
Model: c3000, c7000
Form factor: Blade Module (Plug-in)
Generation: c-Class
Designed as internal switch module for c-Class BladeSystem enclosures. Occupies one switch slot.

Best for

Blade Data Centers
Consolidate switching within HPE c-Class BladeSystem enclosures, reducing external switch requirements and simplifying cabling infrastructure.
Enterprise Switching
Provide Layer 3 routing and advanced VLAN management for multi-tenant blade environments with RADIUS/TACACS+ authentication.
HPC Clusters
Support high-performance computing blade clusters with low-latency switching, ECMP load balancing, and policy-based routing.
Virtualization Infrastructure
Enable dynamic VLAN provisioning and endpoint admission control for virtualized blade server deployments.
Network Consolidation

Details

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Switching Layer	Layer 3 (Full routing capabilities)

MAC Address Table	32K entries

Jumbo Frame Support	Up to 9220 bytes

Additional Protocols	BOOTP, DHCP client, TFTP, IEEE 802.1ag, IEEE 802.1D, IEEE 802.1x, IEEE 802.3ad (LACP), IEEE 802.3ae, IEEE 802.3x

Regulatory Compliance	FCC Class A, EN 60950-1, EN55022, EN55024, AS/NZS 3548 Class A, ICES-003 Class A, UL 60950-1, VCCI Class A, RoHS 6/6, WEEE, ITE

Spanning Tree Support	STP, RSTP, MSTP

Layer 3 Routing Protocols	BGP, OSPF, ECMP, VRRP, RIP-1, RIP-2, PIM-DM, PIM-SM, PIM-SSM, MSDP, IGMP, IGMPv3, Static IPv4/IPv6, Policy-based routing

RAM	1GB installed
Flash Memory	256MB

Security

Security Features	ACL support, DHCP protection, Endpoint Admission Defense (EAD), URPF, STP Root Guard
Monitoring Features	sFlow, Syslog support, SNMP traps
Management Protocols	CLI, HTTP, HTTPS, SNMP 1/2c/3, SSH-2
Authentication Methods	RADIUS, SSH2, TACACS+

Physical Characteristics

Weight	4.19 lbs
Form Factor	Plug-in blade module for c-Class BladeSystem
Status Indicators	Link/activity LEDs, Port transmission speed indicators
Physical Dimensions	Width: 14.6 in, Depth: 11.5 in, Height: 3.7 in

Operating Humidity	5-95% non-condensing
Storage Temperature	-40°F to 158°F (-40°C to 70°C)
Operating Temperature	50°F to 95°F (10°C to 35°C)

Interface/Ports

SFP Ports	2x 1Gb SFP, 2x 1Gb/10Gb SFP+
Uplink Ports	8x 1000Base-T Gigabit Ethernet
Downlink Ports	16x 1000Base-T Gigabit Ethernet
Management Port	1x 1000Base-T Ethernet
Total Port Count	28 ports (16 downlink + 8 uplink + 4 SFP)

Frequently asked questions

What is the switching capacity and port configuration of the HPE 658247-B21?

The 6125G provides 16x 1Gb downlink ports and 8x 1Gb uplink ports with a 32K MAC address table. It supports 1024 IGMP groups and delivers non-blocking Layer 3 switching optimized for blade server interconnect within c-Class enclosures. Jumbo frame support extends to 9220 bytes.

What Layer 3 routing protocols does this blade switch support?

The 658247-B21 supports BGP, OSPF, ECMP, VRRP, RIP-1, RIP-2, PIM-DM, PIM-SM, PIM-SSM, MSDP, IGMP, IGMPv3, and policy-based routing (PBR). Static IPv4 and IPv6 routing are also available, enabling complex enterprise routing topologies within blade environments.

How does this switch integrate with HPE BladeSystem architecture?

The 658247-B21 is a plug-in module designed specifically for HPE c-Class BladeSystem enclosures. It provides internal switching fabric for blade-to-blade and blade-to-uplink connectivity, reducing external switch dependencies and simplifying network architecture while maintaining full Layer 3 capabilities.

What security and management features are included?

Authentication methods include RADIUS, SSH2, and TACACS+. Management protocols support CLI, HTTP, HTTPS, SNMP 1/2c/3, and SSH-2. Features include ACL support, endpoint admission control (EAD), sFlow monitoring, and syslog support for comprehensive security and visibility.

What are the environmental operating specifications?

Operating temperature range: 50°F to 95°F. Storage temperature range: -40°F to 158°F. Operating humidity: 5-95% non-condensing. The switch meets RoHS 6/6, FCC Class A, and multiple international standards (EN 60950-1, AS/NZS 3548, UL 60950-1).

Is this switch still supported by HPE?

The 658247-B21 is officially retired and obsolete. HPE no longer provides active support, updates, or new sales. It remains functional for existing deployments but should be considered end-of-life for procurement decisions. Replacement with current HPE blade switch models is recommended.