[c-nsp] Mysterious ASIC

David Freedman david.freedman at uk.clara.net
Thu Jan 21 18:46:16 EST 2010


Look at this:

#sh ver | in cisco WS-
cisco WS-C2960G-48TC-L (PowerPC405) processor (revision E0) with 0K/4088K bytes of memory.

#sh platform port-asic version

Port-Asic Version Info: 
========================
ASIC-0: Version:1 DeviceType:0x2CA 
ASIC-1: Version:1 DeviceType:0x2CA 
ASIC-2: Version:1 DeviceType:0x2CA 
ASIC-3: Version:1 DeviceType:0x2CA 
ASIC-4: Version:1 DeviceType:0x2CA 
ASIC-5: Version:1 DeviceType:0x2CA 
ASIC-6: Version:1 DeviceType:0x2CA 
ASIC-7: Version:1 DeviceType:0x2CA 
ASIC-8: Version:1 DeviceType:0x2CA 
ASIC-9: Version:1 DeviceType:0x2CA 
ASIC-10: Version:1 DeviceType:0x2CA 
ASIC-11: Version:1 DeviceType:0x2CA 

So, the WS-C2960G-48TC-L has 12 Port ASICs , for a published 39Mpps of throughput. 

But now look at this, the 2960-24TC-L Advertised at 6.5Mpps:

#sh ver | in cisco WS-
cisco WS-C2960-24TC-L (PowerPC405) processor (revision H0) with 65536K bytes of memory.

#sh platform port-asic version 

Port-Asic Version Info: 
========================
ASIC-0: Version:8 DeviceType:0x2C1 

Yes, a single 6.5Mpps forwarding ASIC, type 0x2C1

Does anybody know what this new ASIC may be and what else it is used in?



------------------------------------------------
David Freedman
Group Network Engineering 
Claranet Limited
http://www.clara.net



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