<div>
Configure device as NTP client:<br />
ntp server &lt;ntp_server_IPaddress&gt; prefer<br />
ntp server &lt;ntp_server_IPaddress&gt;<br />
clock summer-time<br />
clock timezone UTC -4<br />
<br />
Configure device as NTP server:<br />
ntp master
</div>


Configure device as NTP client:
ntp server <ntp_server_IPaddress> prefer
ntp server <ntp_server_IPaddress>
clock summer-time
clock timezone UTC -4

Configure device as NTP server:
ntp master

<div>
is there an ip address in internet I can use? Any well known servers ?<br />
<br />
What about the day light savings settings?<br />
<br />
Thanks,
</div>


is there an ip address in internet I can use? Any well known servers ?

What about the day light savings settings?

Thanks,

<div>
<div class="content wysiwyg-content">
Hello Experts, <br />
<br />
I have a cisco switch - 3850 and it will have a connection to the internet, <br />
<br />
I would like to configure this switch to be the main NTP device for the network. I would like this switch to gets its time from the internet, I also need to have the clock and time zone adjusted UTC/GMT -4 hours and day light savings to be enabled. <br />
<br />
if anyone can give me the command lines, it will be appreciated.<br />
<br />
Thanks,
</div>
</div>


Hello Experts, 

I have a cisco switch - 3850 and it will have a connection to the internet, 

I would like to configure this switch to be the main NTP device for the network. I would like this switch to gets its time from the internet, I also need to have the clock and time zone adjusted UTC/GMT -4 hours and day light savings to be enabled. 

if anyone can give me the command lines, it will be appreciated.

Thanks,

NTP configuration on Cisco switch

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

Network Management involves issues that are independent of specific hardware or software, including email policies, upgrade planning, backup scheduling and working with managed service providers for Desktop-As-A-Service (DaaS), Software-As-A-Service (SaaS) and the like through the use of tools, coupled with manufacturer standards, best practice guidelines, policies and procedures plus all other relevant documentation. Network management also includes monitoring, alerting and reporting, management reporting, planning for device or service updates, the backup of configurations, the setting of key performance indicators and measures (KPIs/KPMs), associated service level agreements and problem records as part of the IT Service Management (ITSM) framework.

Network Management

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.