RE: about snmp's polling

From: Tom Young (gitsyoung@yahoo.co.jp)
Date: Tue Dec 28 2004 - 01:34:20 GMT-3


cooper, thanks for your reply.
You said a network scan for searching the agent, I want to
know the detail about the scan, for example, which tcp
port will be used ? TCP 161/162? For searching all of the
network elements will need a long time and will take more
manager's performance ,right ?

Thanks

--- "Dave Cooper (davcoope)" <davcoope@cisco.com> $B$+$i$N(B
$B%a%C%;!<%8!'(B
>
> Typically you need a reachable IP address and a
> known community string
> to poll the devices. This can be gathered with a
> network scan if you
> have the range and community strings.
>
> Regards,
>
> Dave Cooper
> CCIE # 14019
> Cisco Remote Operations Services
> davcoope@cisco.com
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com] On Behalf Of
> Tom Young
> Sent: Monday, December 27, 2004 8:40 PM
> To: ccielab@groupstudy.com
> Subject: about snmp's polling
>
> hi, group
> For snmp, manager could get the agent's MIB
> information by polling
> function, I don't know how can the manager know the
> exist of agent? If
> the network with thoudands routers, only several
> routers's snmp service
> was opened, how can the manager know it?
> By multicast? or a scan ?
>
> Thanks
>
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