A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
for questions about discovering the IP addresses, mac-addresses, vlans, or the physical topology of a network.
For questions about switchports on network devices. For instance, you want to configure a trunk on a router interface or you are wondering how you setup an interface on a switch for a server.
For questions about PPPoE (Point-to-Point Protocol over Ethernet), which provides a method to connect two PPP nodes by encapsulating PPP frames inside Ethernet frames.
For questions about traffic dumps from the packet analyzer tcpdump. This tag should only be used in relation to troubleshooting an issue with a network device. If the host that runs tcpdump has been c…
Generic Routing Encapsulation is a tunnelling protocol, used to carry network layer protocols through encapsulation inside others.
A tag for questions involving Brocade Communications Systems hardware or software.
For questions about network congestion, where a network node or link is carrying more data than it can handle. For instance, you are troubleshooting or trying to find a bottleneck in your network topo…
For questions that are primarily about words / abbreviations specific to networking or network engineering. Do not use this tag as a catch-all for other questions.
For questions about network hardware. For instance, switches, routers, firewalls, bridges, IP phones, Wireless lan controllers, Access points etc.
For questions about Unshielded twisted pair (UTP) cabling, where it should always be in relation to networking in general.
For questions about load balancing network devices. For instance, you are setting up a port-channel with load-balancing or you want to load balance between two firewalls.
For questions about network topology, where a network topology is the arrangement of a network, including its nodes and connecting lines.
Questions relating to the usage of Virtual Routing and Forwarding and VPN Routing and Forwarding.
For questions about the 802.1X protocol for port-based network access control.
For questions involving the command line interface (CLI) on network devices. For instance, you need help with commands on a switch or having trouble finding the right command for your configuration.
Fortinet is a worldwide provider of network security appliances and a market leader in Network Security (FW/NGFW/UTM).
For questions about telephony in relation to networking. For instance, you are setting up, designing or is having trouble with your IP telephony solution. Physical network installations in regards to …
Etherchannel is Cisco's proprietary layer 2 link aggregation (LAG). It is mostly compatible with the open IEEE 802.3ad/802.1AX standard (LACP).
For question about the NetFlow protocol.
For questions about the Asymmetric Digital Subscriber Line (ADSL) connection type. You should only use this tag in a professional enterprise purpose involving an ADSL connection.
For questions about IGMP (Internet Group Management Protocol), a protocol used for communications between IPv4 hosts and multicast routers to establish and maintain host multicast group membership.
Port security is a technique for securing switchports by restricting inrgess traffic by limiting the MAC addresses that are allowed to send traffic into the port.
For questions about network Authentication, Authorization, and Accounting. These are methods which comprise a security framework for access control on the network, services, and/or devices.
For questions about port forwarding on an on topic network device. For instance, you have a firewall and need to forward a port to an internal server, but you do not know how.
For questions about port mirroring on a network device, where a network switch sends a copy of network packets seen on one switch port (or an entire VLAN) to a network monitoring connection on another…
For questions about or involving the Cisco NX operatingsystem. For instance, you are configuring a Nexus switch or troubleshooting a problem with a MDS 9000 multilayer switch. All network devices, tha…
For questions about Point-to-Point Protocol (PPP), a data link protocol typically used in establishing a direct connection between two nodes.
Major release 15 of Cisco's IOS software
For questions about the Cisco developed Virtual Port Channel (vPC) technology. For instance, you want to stack two Nexus 7000 switches or you are troubleshooting a problem with a Nexus 2000 fabric ext…
For questions regarding industry methods or techniques that have shown superior results and are accepted as a de facto standard, or have been formally established.
For questions about network performance, where factors like Bandwidth, Throughput, Latency, Jitter and Error rate are all often considered important.
For questions about Virtual Router Redundancy Protocol (VRRP), a standards based First Hop Redundancy Protocol (FHRP) defined in RFC 2338.
For questions about access control lists (ACLs). For instance, you want to limit network traffic to increase network performance or provide traffic flow control on your network device. ACLs also provi…
For questions about loopback interfaces on network devices. For instance, you want to configure routing on your layer 3 switch and for that you want to configure a loopback interface.
Questions about Cisco Integrated Services Routers (ISR).
A protocol for communication between controllers and network elements in a software-defined network.