Wired Intelligent Edge

Can someone list detailed steps to configure ntp and snmp for 2930?  Is ntp server needs to be internal or external? what is it?

Also why a switch needs ip dn server-address command?

Here you go, straight from a 2930F. Timesync first, followed by SNMP V2. You should really think about using V3 - it is secure and V2 is not.

timesync ntp
ntp unicast
ntp server 216.239.35.4 iburst
ntp server 216.239.35.8 iburst
ntp server 216.239.35.12 iburst
ntp enable
time daylight-time-rule user-defined begin-date 10/01 end-date 04/01
time timezone 600

snmp-server community "public" operator
snmp-server community "XXXXXX" unrestricted
snmp-server contact "Richard Litchfield" location "Rhodes Demo"

The timesync is configured for Sydney Australia, which is 10 hours ahead of GMT (+1000, or 600min).  Daylight savings is specified as starting on the first sunday of October (10/01), and ending on the first Sunday of April (04/01).

The NTP servers specified are th Google ones. The ProCurve/AOSS switches only work with IP addresses (not DNS), and it doesn't work with 216.239.35.0.

Hi Richard,

Is google servers recommended for ntp or should I use internal server? If internal server how to configure it?

What should be the timezone number for Central time zone, america?

What does operator and unrestricted means for snmp?

Hi Nick IT

Unless your environment needs something special with time, just use the freely available extrenal time servers. They are more than adequate for standard IT implementations, and you don't have to worry about maintaining them!

I like the Google ones; there are plenty of others. The most notable are available from pool.ntp.org (eg au.pool.ntp.org).

All devices should be synced to a common time source. Some systems and functions (often including security) need quite accurate sync; but most things will work with minutes or hours of mismatch.

I guess you need Central Time Zone or CST (-0600)

Operator/restricted is read only (SNMP gets)

Manager/unrestricted is read/write (SNMP gets and sets)

Hello Richard,

Hope to not hijack this thread...could you share your best practices in configuring SNMPv3 for Aruba AirWave and HPE IMC on ArubaOS-Switch?

With regards to ArubaOS-Switch NTP settings: is issuing the time daylight-time-rule with a predefined value (as example: western-europe) somewhat correct/sufficient or is it not?

I mean: each country has its daylight savings dates so we need to use them in a customized way? I'm in Italy...and I set simply time daylight-time-rule western-europe and time timezone 60 (UTC+1) but I'm not totally sure I've done things correctly from the Daylight savings point of view.

parnassus,

FYI, I posted this article about SNMPv2 and SNMPv3