Common Errors
Lighting up a layer 2 trunk
3 July, 2008 Posted by
zismail As
Common Errors
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I’ve seen this a number of times. A user lights up a trunk and doesn’t restrict which VLANs can use the trunk, so Cisco IOS obviously allows all VLANs and this causes spanning tree to send a whole load of BPDUs to the remote device and if it has also been configured in a similar [...]
Categories :
Common Errors
Etherchannel configurations – woops added the VLAN to the physical port.
3 July, 2008 Posted by
zismail As
Common Errors
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Adding a VLAN to an Etherchannel
How many times have you heard that someone added a VLAN to a phyiscal layer2 interface instead of the logical layer2 port-channel and subsequently brought the etherchannel down. If your lucky you might get away with it. I’ve seen engineers take down entire data centers as well as call centers [...]
Categories :
Common Errors
