Ch33-Device Management Protocols Flashcards
A message generated by any computer, but including Cisco routers and switches, for which the device OS wants to notify the owner or administrator of the device about some event
log message
A server application that collects syslog messages from many devices over the network, and provides an user interface is that IT administrators can view the log messages to troubleshoot problems
syslog sever
A protocol used to synchronize time-of-day clocks so that multiple devices use the same time-of-day, which allows log messages to be more easily matched based on their timestamps
Network Time Protocol (NTP)
Any device that attempts to use NTP to synchronize its time by adjusting the local device’s time based on NTP messages received from a server
NTP client
A mode of operation with NTP in which devices acts as both an NTP client-synchronizing it time with some server(s)-and as an NTP server-supplying time information to other clients
NTP client/server mode
Any device that uses NTP to hero synchronize time-of-day clocks for other devices by telling those other devices it’s current time
NTP server
A media and protocol independent device discovery protocol that runs on most Cisco-manufactured equipment, including routers, access servers, and switches. The device will advertise its existence to other devices and receive information about other devices on the same LAN or the remote side of a WAN
Cisco Discovery Protocol (CDP)
An IEEE standard protocol that defines messages, encapsulated directly in Ethernet frames so that they do not rely on a working IPv4 or IPv6 network, for the purposes of giving devices a means of announcing basic device information to other devices on the LAN. A standardized protocol similar to CDP
Link-layer discovery protocol (LLDP)
Command reference:
Enables or disables logging to the console device
[no] logging console
Command reference:
Enables or disables logging to users connected to the device with SSH or telnet
[no] logging monitor
Command reference:
Enables or disables logging to the devices internal memory
[no] logging buffered
Command reference:
Enables logging to a syslog server
logging [host] <i>ip-addr</i>|<i>hostname</i>
Command reference:
Sets the log message level for console users
logging console <i>level-name</i>|<i>level-num</i>
Command reference:
Sets the log message level for log messages sent to SSH and Telnet users
logging monitor <i>level-name</i>|<i>level-num</i>
Command reference:
Sets the log message level for log messages sent to the log buffer
logging buffered <i>level-name</i>|<i>level-num</i>
Command reference:
Sets the log message level for log messages sent to the syslog server
logging trap <i>level-name</i>|<i>level-num</i>
Command reference:
Global command to enable or disable the use of sequence numbers in log messages
[no] service sequence-numbers
Command reference:
Global command that names timezone and defines the +/- offset versus UTC
clock timezone <i>name</i> <i>offset</i>
Command reference:
Global command that names a daylight savings time for a timezone, and tells IOS to adjust the clock automatically
clock summertime <i>name</i> recurring
Command reference:
Global command that configures the device as and NTP client by referring the the address or name of an NTP server
ntp server <i>address</i>
Command reference:
Global command that configures the device as an NTP server and assigns its local clock stratum level
ntp master stratum <i>stratum-level</i>
Command reference:
Global command that tells NTP to use the listed interface (by name/number) for the source IP address for NTP messages
ntp source (int name/num)
Command reference:
Global command that, at first use, creates a loopback interface. At all uses, it also moves the user into interface configuration mode for that interface
interface loopback <i>number</i>
Command reference:
Global command that enables or disables CDP for the entire switch or router
[no] cdp run
