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Channel: Reducing broadcast traffic on Cisco SG300 - Network Engineering Stack Exchange
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Answer by Christian for Reducing broadcast traffic on Cisco SG300

The voice vlan state disabled configuration command will stop these broadcasts.

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Answer by Dale for Reducing broadcast traffic on Cisco SG300

This is a VSDP packet. Cisco's horrible and proprietary way for their small business lines of switches to communicate the agreed upon voice vlan around the network. It's a pain, will add/remove vlans,...

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Answer by user73383 for Reducing broadcast traffic on Cisco SG300

Unfortunately it appears to be a bug in Cisco IOS:https://quickview.cloudapps.cisco.com/quickview/bug/CSCum51028

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Answer by JFL for Reducing broadcast traffic on Cisco SG300

224.0.0.251 is the multicast (and not broadcast) address used by the apple Bonjour protocol but also by the associated multicast DNS (rfc6762)So there's two cause of traffic sent to this multicast...

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Reducing broadcast traffic on Cisco SG300

I have a Cisco SG300 Small business switch, and the GUI interface is creating a lot of broadcast traffic: Source IP (The GUI IP): 172.16.xx.254:5353, Destination IP (Broadcast) 224.0.0.251:5353I have...

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