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December 8th, 2011 10:00

Q-BRIDGE-MIB PortList on Powerconnect 6648

​Hi,​

​I have a 6648P with a 2x10GbE addon. Could someone explain the number of ports represented in the following snmp output?:​

​Q-BRIDGE-MIB::dot1qVlanStaticEgressPorts.102 = Hex-STRING: 40 00 00 00 00 03 00 00 00 00 00 00 00 00 00 00 ​
​00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ​
​00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ​
​00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ​
​00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ​
​00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ​
​00 00 00 00 00 00 00 ​

​The hex string is 206 characters. Each hex character represents 4 ports. This model I believe supports 12 units stacked together. So:​

​ ( 206 * 4) / 12 = 68 ports per switch - but it's only got 52 ports according to RFC1213-MIB::ifIndex​

​Can someone please explain the discrepency?​

​Thanks​

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