Selective Packet Discard(SPD)

Selective Packet Discard

• When a link goes to a saturated state, you will drop packets. The problem is that you will drop any type of packets – Including your routing protocols.

• Selective Packet Discard (SPD) will attempt to drop non-routing packets instead of routing packets when the link is overloaded.

ip spd enable

• Enabled by default from 11.2(5)P and later releases, available option in 11.1CA/CC.

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