The Cisco Business CBS250-48T-4G is a 48-port Gigabit Ethernet smart switch with 4 SFP+ ports. It is designed for small and medium-sized businesses that need a reliable and affordable network solution.
48 ports of Gigabit Ethernet for connecting devices like computers, printers, and other networked equipment.
4 additional ports supporting Gigabit SFP (Small Form-Factor Pluggable) for fiber optic connectivity.
CBS250 Smart Switch: This indicates that the switch likely has some level of management capabilities, allowing for configuration and monitoring of network settings.
It may support features like VLANs (Virtual LANs) for network segmentation, QoS (Quality of Service) for prioritizing traffic, and possibly even basic security features.
The switch should provide high-speed data transfer rates on its Gigabit Ethernet ports, suitable for a variety of network applications.
The inclusion of SFP ports allows for the possibility of fiber-optic connections, providing additional flexibility in network design.
Cisco switches typically support multiple layers of the OSI model. This could include Layer 2 features for basic switching functions and Layer 3 features for routing capabilities.
Cisco switches in this category may or may not support PoE. PoE allows the switch to deliver power to connected devices such as IP cameras, phones, or wireless access points through the Ethernet cable.
Cisco switches often incorporate energy-saving features to optimize power consumption based on network activity.
Layer 2 Switching: Supports basic VLAN and network segmentation.
Quality of Service (QoS): Prioritizes network traffic to ensure critical applications get the necessary bandwidth.
Web-based Management Interface: Allows for easy configuration and monitoring of the switch.
Security Features: Includes features like MAC-based port security and DHCP snooping to enhance network security.
| Brand | |
|---|---|
| Security | . |
| Secure Sockets Layer (SSL) | SSL encrypts all HTTPS traffic, allowing secure access to the browser-based management GUI in the switch |
| Secure Shell (SSH) Protocol | SSH is a secure replacement for Telnet traffic. Secure Copy (SCP) also uses SSH. SSH v1 and v2 are supported. |
| IEEE 802.1X (authenticator role) | Remote Authentication Dial-In User Service (RADIUS) authentication, guest VLAN, single/multiple host mode, and single/multiple sessions |
| STP loopback guard | Provides additional protection against Layer 2 forwarding loops (STP loops) |
| Secure Core Technology (SCT) | Ensures that the switch will receive and process management and protocol traffic no matter how much traffic is received |
| Secure Sensitive Data (SSD) | A mechanism to manage sensitive data (such as passwords, keys, and so on) securely on the switch, populating this data to other devices, and secure autoconfig. Access to view the sensitive data as plain text or encrypted is provided according to the user-configured access level and the access method of the user |
| Trustworthy systems | Trustworthy systems provide a highly secure foundation for Cisco products Run-time defenses (Executable Space Protection [X-Space], Address Space Layout Randomization [ASLR], Built-In Object Size Checking [BOSC]) |
| Port security | Ability to lock source MAC addresses to ports and limit the number of learned MAC addresses |
| RADIUS | Supports RADIUS authentication for management access. Switch functions as a client. |
| Storm control | Broadcast, multicast, and unknown unicast |
| DoS prevention | Denial-of-Service (DoS) attack prevention |
| Multiple user privilege levels in CLI | Level 1, 7, and 15 privilege levels |
| Access Control Lists (ACLs) | Support for up to 512 rules Drop or rate limit based on source and destination MAC, VLAN ID or IPv4 or IPv6 address, IPv6 flow label, protocol, port, Differentiated Services Code Point (DSCP)/IP precedence, TCP/UDP source and destination ports, 802.1p priority, Ethernet type, Internet Control Message Protocol (ICMP) packets, IGMP packets, TCP flag; ACL can be applied on both ingress and egress sides Time-based ACLs supported |
| Quality of service | . |
| Priority levels | 8 hardware queues |
| Scheduling | Strict priority and Weighted Round-Robin (WRR) queue assignment based on DSCP and class of service (802.1p/CoS) |
| Class of service | Port based; 802.1p VLAN priority based; IPv4/v6 IP precedence/Type of Service (ToS)/DSCP based; Differentiated Services (DiffServ); classification and re-marking ACLs, trusted QoS |
| Rate limiting | Ingress policer; egress shaping and rate control; per VLAN, per port, and flow based |
| Congestion avoidance | A TCP congestion avoidance algorithm is required to reduce and prevent global TCP loss synchronization |
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