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broadcast traffic

I am trying to see how much traffic is generating in my vlan. When I did the sh int vlan 10, I see no broadcast but there are multicast. Is there a command to look at the broadcast for the vlan? Thanks

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giltjr

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masnrock

Giltjr is 100% correct. As part of the capture, you will need to use tools such as Wireshark. But without doing what has already been mentioned, you will not be able to do it.

Steve Jennings

What kind of device are you looking at (sh int vlan 10 sounds like Cisco) because Cisco absolutely shows broadcasts:

L2 Switched: ucast: 15779125210 pkt, 18823193060427 bytes - mcast: 13524425 pkt, 1275607608 bytes
L3 in Switched: ucast: 31588733531 pkt, 41521487754788 bytes - mcast: 0 pkt, 0 bytes mcast
L3 out Switched: ucast: 31121695300 pkt, 18523037712040 bytes mcast: 0 pkt, 0 bytes
31619970443 packets input, 41526015931352 bytes, 0 no buffer
Received 13523539 broadcasts (0 IP multicasts)
0 runts, 0 giants, 67 throttles

That's partial output from a VLAN on a Cisco 65xx

Good luck,
Steve

leblanc

ASKER

Yes. It shows you the broadcast from the interface level. I am curious if I can get the number of broadcast for the whole vlan.

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