" ip nbar protocol-discovery" is not required for configuring QoS class-map
with matching protocol option. It is used to monitor the trafffic on the
interface. You can see a sample O/P below.
It is independent of QoS policy maps and you can see the o/p, even if there
is no policy configured on the interface.
As you said, we can use "ip nbar protocol-discovery" to monitor the traffic
and then configure QoS policies as required.
router1#sh ip nbar protocol-discovery
GigabitEthernet0/0
Input Output
----- ------
Protocol Packet Count Packet Count
Byte Count Byte Count
5min Bit Rate (bps) 5min Bit Rate (bps)
5min Max Bit Rate (bps) 5min Max Bit Rate (bps)
------------------------ ------------------------
------------------------
tftp 48 0
2992 0
0 0
0 0
dns 20 6
2126 375
0 0
0 0
ntp 2 1
180 90
With regards
Kings
On Fri, Aug 5, 2011 at 12:14 PM, Kok Yong CHEONG <[email protected]> wrote:
> hi Guys
>
> i understand that similar question was asked, however, just wanted to be
> very sure on the understanding.
>
> regarding whether "IP nbar protocol-discovery" is required or not in the
> interface configuration when you have nbar traffic classification using
> class-map/policy-map, as per example shown in the url, however, the
> questions were surrounding with whether "ip nbar protocol-discovery" is
> needed for "classifying mitigating attack using NBAR?". but my question
> will be whether "ip nbar protocol-discovery" needed for classifying the
> traffic and subsequently applying "Bandwidth management" on the policymap ?
>
> http://onlinestudylist.com/archives/ccie_security/2008-December/017788.html
>
> http://www.mail-archive.com/[email protected]/msg07886.html
>
> meaning, do we need to have the interface discover all the traffic
> statistic using ip nbar protocol-discovery and then the action on the
> policy-map to provide the BW management by referencing the statistic
> collected ?
>
> or it's totally independent ?
>
> thanks in advance
>
> Regards
> KY
>
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_______________________________________________
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www.ipexpert.com
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