Interface Error Disable And Auto Recovery; System Utility; Sntp (Simple Network Time Protocol); Sflow - Fujitsu PSWITCH 2048T User Manual

User's Guide FUJITSU PSWITCH

3.1.5.13. Interface Error Disable and Auto Recovery

Interface error disable automatically disables an interface when an error is
detected; no traffic is allowed until the interface is either manually re-enabled or, if
auto recovery is configured, the configured auto recovery time interval has passed.
For interface error disable and auto recovery, an error condition is detected for an
interface, the interface is placed in a diagnostic disabled state (D-Disable) by
shutting down the interface. The error disabled interface does not allow any traffic
until the interface is re-enabled. The error disabled interface can be manually
enabled . Alternatively administrator can enable auto recovery feature. Auto
Recovery re-enables the interface after the expiry of configured time interval.

3.1.6. System Utility

3.1.6.1. SNTP (Simple Network Time Protocol)

The Simple Network Time Protocol (SNTP) is widely used for synchronizing network
resources. SNTP Version 4 is described in RFC 2030. SNTP is an adaptation of the
Network Time Protocol (RFC 1305) useful for situations where the full performance
of NTP is not justified. SNTP can operate in unicast mode (point-to-point) or
broadcast mode (point-to-multipoint). Various NTP implementations can operate
as either a client or a server. To an NTP or SNTP server, NTP and SNTP clients are
indistinguishable. Likewise, to an NTP or SNTP client, NTP and SNTP servers are
indistinguishable. Furthermore, any version of NTP is compatible with any other
version of NTP. Fujitsu SNTP implements the client side of SNTP. This software can
communicate with SNTP time servers over IPv4 or IPv6 networks.
The SNTP and time configuration feature includes the ability to configure the time
zone and daylight savings time functionality.

3.1.6.2. sFlow

sFlow is an industry standard technology for monitoring high-speed switched and
routed networks. This software has a built-in sFlow agent that can monitor network
traffic on each port and generate sFlow data to a sFlow receiver (also known as a
collector). sFlow helps to provide visibility into network activity, which enables
effective management and control of network resources. sFlow is an alternative to
the NetFlow network protocol, which was developed by Cisco Systems. The switch
supports sFlow version 5.
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