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<p class=MsoNormal><span lang=EN-US>Hi Guys,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I’m trying to improve the stability
of my MLX/XMR under layer2-loop-conditions and came across the “vlan-cpu-protection”-feature.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Does anyone know about the side effects of vlan-cpu-protection
in combination with routing protocols like OSPF and BGP or with vrrp?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>The manual says “When using routing
protocols (like OSPF etc.) on a specific VLAN, you need to disable VLAN CPU
protection for it to work.” <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I guess this means that during a flood
condition routing-protocol-packets might get lost as they are filtered –
or better rate limited - on their way to the cpu like all ordinary packets.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Doesn’t sound too bad… I’d
prefer a layer3-protocol-flap over a system that’s lost because it’s
cpu is on 100% and it doesn’t even switch packets nor does it route
anymore at all.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>What are your recommendations?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Any pros / cons for the feature?<br>
<br>
Gunther<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
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