We have Avaya VoIP telephony switches, the Medpro cards of these switches are connected WS-C3750-24P using IP Services 12.2.(25)seb4. @ 100 FD. All these cards do is 218 byte RTP packets generating about 6Mb of traffic. Yet we keep seeing the unicast storm control threshold exceeded even when the threshold is set to 99%. A sniffer mirroring the port shows no unusual traffic when the switch reports a threshold alarm.
Has anyone seen similar behaviour or know a reason for this.