About AutoQOS

eng_ahmedas

Dear Friends
I wish u r all fine .... I have question about AutoQos and wish u could help me.... I read this statement in cisco curriculum :

"Before using the auto discovery qos command at the interface or ATM PVC, ensure you meet these prerequisites :

If the interface or subinterface has a link speed of 768 kbps or lower, configure the primary or secondary IP address of the interface by using the ip address command. "

My question is why only it is a prerequisite to configure ip address on low speed interfaces and not on all interfaces that involved in AutoQOS ???

Can anyone help ????

Thanks in advance ........

Paul Boz

AutoQoS uses some link efficiency mechanisms for low speed links that it otherwise would not use for high speed links. You do not need LFI (link fragmentation and interleaving) for example, on a high speed link. For this reason you must ensure that bandwidth is specified on low speed links.