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Cisco

Cisco CBS250-48T-4X-AU | 48x 1G RJ-45; PoE: None; Uplinks: 4x 10G SFP+; Smart Managed L2/L3 static

Cisco CBS250-48T-4X-AU | 48x 1G RJ-45; PoE: None; Uplinks: 4x 10G SFP+; Smart Managed L2/L3 static

SKU:CBS250-48T-4X-AU

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Description

48-port Gigabit smart managed switch with four 10G SFP+ fiber uplinks for high-speed aggregation to core or server tiers. Delivers comprehensive L2 features and basic L3 static routing to segment networks while maintaining simplicity and low TCO.

Features

- High-performance access switching with 48x 1G ports
- Four 10G SFP+ uplinks for fast aggregation or uplink to core
- Smart managed L2 with L3 static routing for segmentation
- Comprehensive security and policy enforcement at the edge
- Advanced QoS for predictable application performance
- Energy Efficient Ethernet for reduced operating costs
- Simplified deployment and monitoring with intuitive tools

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Are the SFP+ uplinks backward compatible with 1G SFP modules?
A: Yes, the SFP+ uplinks typically support 1G SFP optics, allowing mixed-speed uplink deployments.

Q: Is a license required to enable Layer 3 features?
A: No additional license is required; static routing is included.

Q: Can this switch aggregate multiple 1G links to servers or upstream switches?
A: Yes. Use LACP to bundle multiple links for higher throughput and redundancy.

Q: Does it support VLAN trunking for virtualization hosts?
A: Yes. 802.1Q trunks and VLAN tagging are supported on any port.

Q: Is hardware stacking available?
A: No hardware stacking. Manage multiple units centrally while operating independently.

Technical Specifications

- Ports: 48x 10/100/1000 RJ-45 access ports
- Uplinks: 4x 10G SFP+ (supports 10GBASE-SR/LR; typically backward-compatible with 1G SFP)
- PoE: None (all ports are data-only)
- Management: Smart managed web UI; CLI (limited), SNMP v1/v2c/v3, RMON
- Layer 2: 802.1Q VLANs, Private VLAN, LACP link aggregation
- Layer 3: Static IPv4/IPv6 routing and inter-VLAN routing
- Resiliency: STP/RSTP/MSTP, Loop guard, Storm control
- Security: 802.1X (port/MAB), ACLs, DHCP snooping, IP source guard
- QoS: 8 queues, DSCP/CoS trust and remarking, shaping and policing
- Multicast: IGMP snooping v1/v2/v3, MLD snooping
- Energy: 802.3az Energy Efficient Ethernet
- Form factor: 1U rack-mount; front access RJ-45 and SFP+ uplinks
- Transceiver support: 10G SFP+ optics (e.g., SR 850 nm, LR 1310 nm) with LC connectors

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