SPAN + cisco 6500
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Posted by networkzman on June 24, 2008, 9:48 am
Please log in for more thread options I am trying to configure SPAN on a cisco 6509 cat switch, we are trying to configure ports based span, with three ports as source (which are configured with pvlans) and a destination port on a normal vlan. When I issue a command: set span 3/14,6/7 7/20 both inpkts disable learning enable multicast enable create I get the following error: "Port with a Private Port in the same ASIC can't be made span destination." Please could you someone advise/ suggest as to where I am going worng. Thanks in Advance | |||||||||||||||||||
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Posted by Trendkill on June 24, 2008, 10:59 am
Please log in for more thread options Not sure what the exact issue is, but if you are using say 6148's, then ASICs serve every 8 ports (1-8, 9-16, etc). This comes up a lot because on lower end blades (like 6148s), the asics are common bandwidth bottlenecks (as an example, a 6148 can only handle one gig of traffic per asic, so if two ports on the same asic try to push gig throughput, they will instead only get 500mbits each. Anyway, the way around this is probably to set a span destination port that is not in the same asic as any of your source ports. What is your destination port? Your other option is of course to use VACLs. I think you can do multiple VLANs to a single VACL, but been awhile since I tinkered with them. | |||||||||||||||||||
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Posted by networkzman on June 25, 2008, 5:58 am
Please log in for more thread options Hello Trend,
Thanks for your suggestion..I was just trying with available free ports to configure as a destination port as you said " ASICs serve every 8 ports (1-8, 9-16, etc). " it seems to be the same in 6509s as well...seleceted one port, while I was checking the pvlan capability for the dest ports.. selected from 1-8 range and it worked. Thanks for your input! >
> > > > > > Hello,
>
> > I am trying to configure SPAN on a cisco 6509 cat switch, we are
> > trying to configure ports based span, with three ports as source > > (which are configured with pvlans) and a destination port on a normal > > vlan. > > When I issue a command: >
> > set span 3/14,6/7 =A07/20 both inpkts disable learning enable multicast
> > enable create >
> > I get the following error:
>
> > "Port with a Private Port in the same ASIC can't be made span
> > destination." >
> > Please could you someone advise/ suggest as to where I am going worng.
>
> > Thanks in Advance
>
> Not sure what the exact issue is, but if you are using say 6148's, > then ASICs serve every 8 ports (1-8, 9-16, etc). =A0This comes up a lot > because on lower end blades (like 6148s), the asics are common > bandwidth bottlenecks (as an example, a 6148 can only handle one gig > of traffic per asic, so if two ports on the same asic try to push gig > throughput, they will instead only get 500mbits each. =A0Anyway, the way > around this is probably to set a span destination port that is not in > the same asic as any of your source ports. =A0What is your destination > port? =A0Your other option is of course to use VACLs. =A0I think you can > do multiple VLANs to a single VACL, but been awhile since I tinkered > with them. | |||||||||||||||||||
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>
> I am trying to configure SPAN on a cisco 6509 cat switch, we are
> trying to configure ports based span, with three ports as source
> (which are configured with pvlans) and a destination port on a normal
> vlan.
> When I issue a command:
>
> set span 3/14,6/7 =A07/20 both inpkts disable learning enable multicast
> enable create
>
> I get the following error:
>
> "Port with a Private Port in the same ASIC can't be made span
> destination."
>
> Please could you someone advise/ suggest as to where I am going worng.
>
> Thanks in Advance