October 2002
Intermediate to advanced
560 pages
12h 13m
English
Content preview from Cisco® Field Manual: Catalyst® Switch ConfigurationBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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11-1. Broadcast Suppression
A network protocol can create a large amount of broadcast traffic.
In Layer 2 networks, broadcasts must be forwarded on all ports except the receiving port; because of this, a large or excessive number of broadcasts can have an impact on network and device performance.
Broadcast suppression enables you to control how a receiving port handles excessive broadcast traffic.
By configuring a threshold, a port can be configured to stop flooding broadcasts for a predefined period or until the broadcasts fall below a certain level.
Suppressing these broadcasts will prevent them from being forwarded out other switch ports and limit the effect they have on the network.
Suppression of the broadcasts does not have any effect on the ...
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