Syslog (System logging)

syslog server

What is Syslog? Syslog (System logging) is a Layer4 protocol for producing and sending log/event information from Cisco, Unix/Linux, and Windows Devices systems to a centralized log/event message collector called Syslog Server.   Features of Syslog Below are some important features of Syslog: The purpose of Syslog is for logs/errors management Syslog belongs to Layer4 of OSI Model Syslog servers listen on UDP port 514 for messages Syslog is a client push model     Syslog Logging Locations The following are the different locations Syslog messages can be sent to: Console line: This means that Syslog messages will be displayed Read More …

SPAN (Switch Port Analyzer)

span SWITCH PORT ANALYZER

What is SPAN? SPAN (Switch Port Analyzer) is a network protocol that collects and forwards switch traffic to the SPAN port for analysis. SPAN is also referred to as Port Mirroring or Port Monitoring. It can be enabled on both physical ports and VLANs.   Attributes of SPAN (Switch Port Analyzer) The attributes of the Switch Port Analyzer are: All ports related to a given session (whether source or destination) must belong to the same VLAN. If you don’t specify any interface in the port monitor command then all other ports belonging to the same VLAN as the interface will Read More …