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High broadcast packets on Interface

gauravpundir231
Beginner
Beginner

Hi All,

Want to know about broadcast packet troubleshoot.
We are suddenly observing high broadcast packets on interfaces. Can anyone pls explain how much broadcast packets are normal on an interface (% in terms of total traffic).
Which all show commands can be used to check. Any configuration is not allowed as devices are in production.

3 Replies 3

marce1000
VIP Mentor VIP Mentor
VIP Mentor

 

 - The first thing to note is that broadcast traffic is usually 'user'-related and needs identifying and then in further steps it can be resolved , by tackling the acquired known-source; here is an example thread :

       https://community.cisco.com/t5/switching/too-many-broadcast/td-p/2621429

 M.

Hi Marce
Thanks for the rply.

We have Catalyst 9300 (TE1/1/1 where Broadcast packets are increasing) and 9500 connected to each other.
Do you know to calculate broadcast percentage ?

 

 - You need to more time-invest on analyzing Intranet-traffic and identify broadcast-traffic.

 M.

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