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Community Member

SPAN forwarding to Sniffer

I am trying to verify what and what not a SPAN port will forward to a destination port with a Sniffer on it in order to use the monitor alarms. If someone could please verify if I am right or wrong on these or if there is anything to add. Thanks in advance. Dave

Will forward:

Octets

Packets

Broadcasts

Multicasts

Undersized

Oversized

Fragments

Size Distributed Packets

Will NOT Forward:

CRCs (it will only see the CRC between the Sniffer and SPAN port)

Dropped packets

Jabbers

Collisions

1 REPLY
Community Member

Re: SPAN forwarding to Sniffer

The URL below should help with your question. Do a search on "forward" and you will see a good description of what it forwards. http://www.cisco.com/warp/public/473/41.html

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