Redundancy and Resilience Features of L2 Switch
The Cisco CBS220-8T-E-2G Business 220 Series Ethernet 8 Ports Switch includes various redundancy and resilience features to ensure that small and medium-sized business networks remain operational even in the event of a failure or network disruption. Some of the key redundancy and resilience features of the Cisco CBS220-8T-E-2G include:
- Link Aggregation Control Protocol (LACP): This protocol allows multiple physical links to be bundled together to form a single logical link, providing increased bandwidth and redundancy, as traffic can be automatically rerouted in the event of a link failure.
- Rapid Spanning Tree Protocol (RSTP): RSTP is a faster version of the Spanning Tree Protocol (STP) that allows the switch to quickly detect and recover from network topology changes, such as a failed link. This helps to ensure that the network remains operational even in the event of a failure.
- Hot Standby Router Protocol (HSRP): HSRP allows multiple routers to share a virtual IP address, so that if the primary router fails, a secondary router can take over its responsibilities without interruption.
- Loop protection: The Cisco CBS220-8T-E-2G includes loop protection features that help prevent network loops from forming, which can cause network outages.
- Dual image support: The Cisco CBS220-8T-E-2G supports dual image, which means that two different firmware images can be stored in the switch memory. This allows for easy switchover in case of a firmware failure.
- Dual power supply support: The Cisco CBS220-8T-E-2G supports dual power supply, which allows the switch to continue operating even if one of the power supply fails.
Security and Access Control for Business 220 Series Switch
The Cisco CBS220-8T-E-2G Business 220 Series Ethernet 8 Ports Switch is a switch designed for small and medium-sized businesses that includes various security and access control features to protect the network from unauthorized access and malicious attacks. Some of the key security and access control features of the Cisco CBS220-8T-E-2G include:
- IEEE 802.1X: This standard allows you to authenticate network users using a variety of methods, such as username and password, digital certificates, or biometric authentication.
- Port security: This feature allows you to configure security settings on a per-port basis, such as limiting the number of MAC addresses that can be learned on a port, or disabling a port if a security violation is detected.
- Access control lists (ACLs): ACLs allow you to define specific rules for controlling access to the network, such as allowing or denying traffic based on source and destination IP address, port number, or protocol.
- Dynamic Host Configuration Protocol (DHCP) snooping: DHCP snooping helps to prevent unauthorized DHCP servers from providing incorrect IP addresses to devices on the network.
- IP Source Guard: IP Source Guard helps to prevent unauthorized devices from connecting to the network by only allowing devices with a valid IP address to connect to the network.
- Statically configured MAC addresses: You can configure the switch to only allow specific MAC addresses to connect to the network, which helps to prevent unauthorized devices from connecting to the network.
- VLAN Access Control List (VACL): VACLs allow you to apply access control to traffic that is specific to a VLAN.
- Enhanced security for management access: The switch supports Secure Shell (SSH) and Secure Sockets Layer (SSL) for secure management access to the switch, and also supports secure management access via HTTPS.
- Quality of Service (QoS): The switch includes QoS features that allow you to prioritize certain types of traffic, such as time-sensitive voice or video traffic, over less critical traffic, such as email or web browsing.
Key Features and Benefits
The Cisco CBS220-8T-E-2G Business 220 Series Ethernet 8 Ports Switch is a switch designed for small and medium-sized businesses that includes various key features and benefits to improve network performance and reliability. Some of the key features and benefits of the Cisco CBS220-8T-E-2G include:
- 8 Gigabit Ethernet ports: The switch includes 8 Gigabit Ethernet ports, which provide high-speed connectivity for devices such as servers, computers, and wireless access points.
- Advanced QoS: The switch includes Quality of Service (QoS) features that allow you to prioritize certain types of traffic, such as time-sensitive voice or video traffic, over less critical traffic, such as email or web browsing.
- Security and access control: The switch includes various security and access control features to protect the network from unauthorized access and malicious attacks, such as IEEE 802.1X, port security, and access control lists (ACLs).
- Redundancy and resilience: The switch includes various redundancy and resilience features to ensure that the network remains operational even in the event of a failure or network disruption, such as Link Aggregation Control Protocol (LACP), Rapid Spanning Tree Protocol (RSTP), and Hot Standby Router Protocol (HSRP).
- Easy to use: The switch includes a web-based management interface that allows for easy configuration and management of the switch.
- Affordable: The Cisco CBS220-8T-E-2G is designed to be an affordable option for small and medium-sized businesses, providing a cost-effective way to improve network performance and reliability.
- Energy efficient: The switch supports Energy Efficient Ethernet (EEE) which reduces the power consumption of the switch and connected devices during periods of low data activity.
General Information about this Cisco CBS220-8T-E-2G
- Manufacturer: Cisco
- Model Number or SKU# CBS220-8T-E-2G
- Product Type: Ethernet Switch
Interfaces/Ports for 8 Ports Switch
- Total Number of Network Ports: 8
- Uplink Port: Yes
- Modular: Yes
- Port/Expansion Slot Details: 8 x Gigabit Ethernet Network
- Port/Expansion Slot Details: 2 x Gigabit Ethernet Expansion Slot
Performance of Ethernet Switch
- Media Type Supported: Optical Fiber
- Media Type Supported: Twisted Pair
- Ethernet Technology: Gigabit Ethernet
- Network Technology: 1000Base-T
- Network Technology: 1000Base-X
I/O Expansions for Layer 2 Switch
- Number of Total Expansion Slots: 2
- Expansion Slot Type: SFP (mini-GBIC)
- Number of SFP Slots: 2
Network & Communication
- Layer Supported: 2
- Power Source: Power Adapter
- Power Consumption: 5.90 W
Management & Protocols
- Manageable: Yes
- Routing Protocol : IGMPv2, IGMP, IGMPv3, MLDv2, MLD, MSTP, RSTP, STP
- Remote Management Protocol : SNMP 1, RMON, Telnet, SNMP 3, SNMP 2c, HTTP, HTTPS, TFTP, SSH, SSH-2, CLI, SCP, ICMP, DHCP, RSTP, TACACS+, RA
- BOOTP support, VLAN support, IGMP snooping, Syslog support, DoS attack prevention, port mirroring, DiffServ support, MAC address filtering,
- Broadcast Storm Control, Multicast Storm Control, Access Control List (ACL) support, Quality of Service (QoS), Cable Diagnostics Function,
- fanless, LACP support, LLDP support, Port Security, DHCP client, Energy Efficient Ethernet, Management Information Base (MIB),
- Dual firmware images, Neighbor Discovery Protocol (NDP), Generic VLAN Registration Protocol (GVRP), 802.1x authentication,
- Type of Service (ToS), DiffServ Code Point (DSCP) support, VLAN management, LLDP-MED, Guest VLAN, User Datagram Protocol (UDP),
- STP loop guard, Weighted Round Robin (WRR), Head-of-line (HOL) Blocking Prevention, loopback detection, Telnet server, Unknown Storm Control,
- BPDU Guard, Cisco Discovery Protocol (CDP), Duplicate Address Detection (DAD), TCP support, auto voice VLAN,
- Automatic Media-Dependent Interface Crossover (MDIX)
- IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x,
- IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.1ab (LLDP), IEEE 802.3az
- RAM : 256 MB
- Flash Memory : 64 MB
- Status Indicators : System, link/activity/speed
Dimensions & Weight
- Width : 11 inch
- Depth : 6.7 inch
- Height : 1.7 inch
- Weight : 2.56 lbs
- Min Operating Temperature : 32 °F
- Max Operating Temperature : 122 °F
- Humidity Range Operating : 10 - 90% (non-condensing)
- Min Storage Temperature : -4 °F
- Max Storage Temperature : 158 °F
- Humidity Range Storage : 10 - 90% (non-condensing)
Different Types of Switches
Networking switches vary widely depending on the number of devices they can support, network bandwidth/speed, and form factor. Switches for small offices will have anything between 4 and 8 ports and can fit on a desk. For larger office network implementation, switches may have 24 ports, 48 ports, 96 ports, and 128 ports and are rack-mountable between 1U and 4U. Switches come in different types depending on the network speed and tasks they support. These include 40/100 Gbps, 10 Gigabit (up to 10000 Mbps), Gigabit Ethernet (up to 1000 Mbps), Power over Ethernet, and Fast Ethernet (10/100 Mbps).
The unmanaged switches offer fixed configuration on a plug-and-play basis. It is the most basic switch and there are a few choices in the market. These switches are affordable, but the basic features make them inappropriate for enterprise applications.
The number of features and level of functionality improves with managed switches, making them ideal for enterprise and business applications. These switches are built with the command-line interface for ease of configuration. Equally, they support SNMP agents that come in handy when troubleshooting network issues.
The security on managed switches is better and will protect different types of traffic. Other features include support for virtual LANs, IP routing, and quality of service settings. Managed switches are more expensive compared to all other types of switches.
Smart switches refer to switches that possess more features than those of unmanaged switches but do not have the full features of managed switches. Smart switches are more cost-effective than managed switches.
Some of the limitations of the smart switches are a lack of telnet access support, Web GUIs, and a lack of many features for VLANs. They are affordable compared to a fully managed switch and are suitable for a smaller computer network.
Modular switches allow the addition of expansion modules as the network expands. The expansion modules allow for more networked devices but are application-specific. They may include wireless access points, firewalls, or network analysis tools. The flexibility of a modular networking switch comes at a higher cost.
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