Syslog Sample Clauses

Syslog. The syslog protocol is a client/server-type protocol, featuring a standard for forwarding log messages in an IP network and supports up to four syslog servers at present. A syslog sender sends a small text message of less than 1024 bytes to the syslog receiver. Syslog messages are sent via UDP in cleartext. DHCP Client When enabled, the DHCP client of ETX-220A requests an IP address, IP mask, and default gateway from the DHCP server. SFTP SFTP (Secure File Transfer Protocol) is supported, to provide secure encrypted file transfer using SSH. Statistics Collection ETX-220A collects performance statistics for the physical layers of the Ethernet ports, Ethernet flows, OAM CFM, and Radius. In addition, ETX-220A provides Rmon Statistics based on RFC 2819. In this scenario, ETX-220A can send reports when one of the defined counters rises above or drops below specified thresholds within the sampling period of time. These reports can be sent as SNMP traps to defined network management stations and/or written to the event log. Synchronous Timing over Packet The unit’s SyncToP™ suite includes clock recovery using IEEE 1588v2 Precision Timing Protocol, Synchronous Ethernet (Sync-E), and a built-in input/output clock interface. The device can use Sync-E to receive the clock from the network, or can transparently forward the 1588v2 packets with accurate timestamps. ETX-220A supports up to two clock sources, which can be the user/network Ethernet ports or the station clock. The timing subsystem automatically selects the best timing source to use for synchronization. The Ethernet ports can transmit SSM messages and distribute (in downstream direction) the quality of the currently selected clock. Network Time Protocol The Network Time Protocol (NTP) provides the means of synchronizing all managed elements across the network to a reliable clock source provided by multiple servers. ETX-220A supports the client side of NTP v.3 (RFC 1305). Diagnostic Tools ETX-220A offers several types of diagnostic procedures:  Ping test –Check IP connectivity by pinging remote IP hosts.  Trace route –Quickly trace a route from ETX-220A to any other network device  Loopback tests:  Layer-1 loopback performed at the PHY of the physical ports. When the loopback is active the data forwarded to a port is looped from the Tx path to the Rx path, disrupting the traffic. This loopback cannot pass through Ethernet bridges.  Layer-2/Layer-3 loopback on flows, with optional MAC and/or IP address sw...

Syslog. Syslog is a standard for logging and interchange of logging messages among computers, defined by IETF’s RFC 5424 [6]. Syslog is used in the WISER Framework for communication of monitoring events messages from sensors deployed on the client’s premises to the WISER-Agent instance deployed on the same network. This type of communication architecture enables the client to only have one point of communication with the Monitoring Provider Layer, avoiding the need for multiple firewall exceptions for connections from each of the sensors. As an implementation of the syslog protocol, WISER uses the open-source program Rsyslog [7]. Rsyslog supports authentication of the syslog server and clients and message encryption based on public-key certificates. To communicate an event message, monitoring sensor programs simply output the messages to the syslog file on their local machine. Rsyslog is configured on each machine to automatically forward messages to the syslog server. The Syslog server is hosted on the machine of the WISER-Agent, which reads the messages and forwards them to the Monitoring Provider Layer using AMQP. Syslog messages by default include a timestamp, machine hostname and name of the program generating the message followed by the message payload. Messages are text strings, separated by new lines. The following is an example of a syslog message containing a heartbeat message:

Syslog. The OAM network design shall include a secure syslog service with local server logging for a minimum of seven days, with secure archiving to a long-term storage drive or repository for no less than 12 months.