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Comware Equivalent to Cisco Express Forwarding

Trinh_Nguyen
Advisor

Comware Equivalent to Cisco Express Forwarding

Hello,

 

Does Comware have any command equivalent to Cisco Express Forwarding (CEF)?

 

According to Cisco:

“CEF is mainly used to increase packet switching speed by reducing the overhead and delays introduced by other routing techniques”

 

Best Regards,

Trinh Nguyen

 

4 REPLIES
Peter_Debruyne
Honored Contributor

Re: Comware Equivalent to Cisco Express Forwarding

Hi,

 

yes, this is the fast forwarding features, which is enabled by default on the routers.

You can disabled it ( may be required for some deep software functions or combinations with vrf/ipsec):

int x

 undo ip fast-forwarding  (in/out)

 

Best regards,Peter

Trinh_Nguyen
Advisor

Re: Comware Equivalent to Cisco Express Forwarding

Peter,

Thanks for the quick reply. But I did not see this in my
10504 Version 5.20.105, Feature 1205L01-US
And S9500E Version 5.20, Release R1726.

Or better yet, do I need fast-forwarding in these switches?

Best Regards,

Trinh Nguyen
manuel.bitzi
Trusted Contributor

Re: Comware Equivalent to Cisco Express Forwarding

The fast-forwarding is only available on the comware router platforms. Switch platforms dont need that because the hardware forwarding is fast enough and has it's own consolidated forwarding table.

 

Or what do you expect by activating a feature like this (CEF)?

 

br

Manuel

H3CSE, MASE Network Infrastructure [2011], Switzerland
Peter_Debruyne
Honored Contributor

Re: Comware Equivalent to Cisco Express Forwarding

Yes, as stated before, this is a feature which helps a software router to offload some processing in hardware. All you switches are processing the data forwarding in hardware anyway, so this is why the command is not available (on the switches).