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QOS - Max-reserved-bandwidth for PPP links and Ethernet links

Hi,

i would like to know the percentage i can use for on ethernet interface in qos.

for PPP, the L2 header is 6 bytes and i use the interface command : max-reserved-bandwidth 90 to fix the L2 overhead at 10 percent instead of the 25% default.

My question is when i use ethernet interface for WAN link : what is the percentage that i can let for the ethernet L2 overhead ?

ie: i have my ethernet line at 4Mbps and with de the L2 overhead default i let 25% (1Mbps) and i prefer to tune to have less badnwidth lost and used for data forwarding.

thank u

2 REPLIES
Bronze

Re: QOS - Max-reserved-bandwidth for PPP links and Ethernet link

This depends on the WAN technology you are employing. The following document on WAN QoS provides guidelines which may assist you.

http://www.cisco.com/univercd/cc/td/doc/product/voice/ip_tele/network/dgqos.htm#xtocid225299

New Member

Re: QOS - Max-reserved-bandwidth for PPP links and Ethernet link

My WAN technology is Ethernet, it is a service provide by my operator an ethernet line at 4Mb/s

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