High Availability and Redundancy
The Cisco Nexus 2248TF Gigabit Ethernet Fabric Extender (FEX) is designed to provide high availability and redundancy for data center networks. Here are some key details about how this device can help achieve these goals:
- Redundant Power Supplies: The Cisco Nexus 2248TF FEX comes with two hot-swappable power supplies. This means that if one power supply fails, the other will continue to provide power to the device, ensuring uninterrupted network connectivity.
- Port Channels: The Cisco Nexus 2248TF FEX supports the creation of port channels, which allow multiple physical links to be combined into a single logical link. This provides both redundancy and increased bandwidth, as if one physical link fails, traffic can still be routed over the remaining links.
- Virtual Port Channels: The Cisco Nexus 2248TF FEX supports virtual port channels (vPC), which allow multiple switches to be connected together to form a single logical switch. This provides redundancy, as if one switch fails, traffic can still be routed over the remaining switches. It also provides increased bandwidth, as traffic can be load-balanced across all available links.
- Fabric Extender Technology: The Cisco Nexus 2248TF FEX is designed to be used with Cisco Nexus switches using Fabric Extender Technology (FEX), such as the Nexus 5000 and 7000 series switches. This allows the FEX to be managed as a virtual line card of the Nexus switch, which provides redundancy and simplifies management.
- Spanning Tree Protocol: The Cisco Nexus 2248TF FEX supports Spanning Tree Protocol (STP), which is used to prevent loops in the network. STP can also be used to provide redundancy by allowing multiple paths to be available between switches, but only using one path at a time to prevent loops.
Performance and Scalability
The N2K-C2248TP-1GE Cisco Nexus 2248TF Gigabit Ethernet Fabric Extender is a network switch designed to extend the reach of a parent switch, such as a Cisco Nexus 5000 or 7000 series switch. It provides up to 48 Gigabit Ethernet ports in a 1U form factor and can be used to connect servers, storage devices, and other network devices.
Performance: The N2K-C2248TP-1GE provides wire-speed forwarding performance for all ports, meaning that it can process and forward packets at the maximum rate supported by the Gigabit Ethernet standard (1 Gbps). This makes it suitable for use in high-bandwidth environments such as data centers or server farms. Additionally, it supports jumbo frames, which can improve performance in certain scenarios where large amounts of data are being transferred.
Scalability: The N2K-C2248TP-1GE is designed to be used as a fabric extender, which means that it can be connected to a parent switch (such as a Cisco Nexus 5000 or 7000 series switch) to expand the number of available ports. It supports Cisco's Fabric Extender Technology (FEX), which allows it to function as a remote line card of the parent switch. This means that the parent switch manages the configuration of the fabric extender, and the fabric extender appears to the network as if it were directly connected to the parent switch.
The N2K-C2248TP-1GE supports up to 24 fabric extenders per parent switch, and up to 12 fabric extenders can be connected in a daisy-chain configuration for even greater scalability. This allows organizations to scale their network infrastructure as needed to meet growing demand without having to replace their existing switches.
Troubleshooting and Diagnostics
The N2K-C2248TP-1GE Cisco Nexus 2248TF Gigabit Ethernet Fabric Extender is a networking device that extends the reach of a parent switch, such as a Cisco Nexus 5000 or 7000 series switch, by providing additional ports for connectivity. Troubleshooting and diagnostics of this device involve identifying and resolving issues that may affect its performance or connectivity to the parent switch.
Here are some steps that can help with troubleshooting and diagnostics of the N2K-C2248TP-1GE Cisco Nexus 2248TF Gigabit Ethernet Fabric Extender:
- Check the physical connections: Ensure that the Ethernet cables connecting the extender to the parent switch and other devices are securely plugged in and are not damaged. Also, check that the power supply and other cables are properly connected.
- Verify the configuration: Verify that the configuration of the extender and the parent switch are correct, and that they are both running compatible software versions. Ensure that the VLANs and interfaces are properly configured.
- Check the LED indicators: The N2K-C2248TP-1GE Cisco Nexus 2248TF Gigabit Ethernet Fabric Extender has several LED indicators that can provide information about its status. Check the LED indicators to see if they are indicating any issues, such as a port being down or a link being disconnected.
- Use diagnostic commands: The Cisco Nexus switch provides several diagnostic commands that can be used to troubleshoot issues with the extender. For example, the "show interface" command can be used to check the status of the interfaces on the extender.
- Monitor logs: The Cisco Nexus switch logs events and messages that can help identify issues with the extender. Use the "show logging" command to view the logs and identify any error messages or warnings.
- Check the parent switch: Sometimes, issues with the extender may be caused by problems with the parent switch. Check the parent switch for any issues, such as misconfigured VLANs or interfaces, or hardware failures.
- Contact Cisco support: If you are unable to resolve the issues with the N2K-C2248TP-1GE Cisco Nexus 2248TF Gigabit Ethernet Fabric Extender, contact Cisco support for assistance. They can provide further guidance and help resolve any issues.
General Information
- Manufacturer: Cisco Systems, Inc
- Manufacturer Part Number: N2K-C2248TP-1GE
- Brand Name: Cisco
- Product Line: Nexus
- Product Series: 2000
- Product Model: 2248TP
- Product Name: Nexus 2248TP Fabric Extender
- Product Type: Fabric Extender
Miscellaneous
- Green Compliant: Yes
- Green Compliance Certificate/Authority: RoHS
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