the stages of a packet throw a cisco switch

[cniculescu]

Hello,

I'm tring to find a diagram of the succesion of functional blocks that a packet passes in his travel throw the switch/router.

input queue, the input acl, then input checks... monitor span, nat, filters, routing,cef.....

Thank you,

Ciprian

[rwagner]

hook up a packet sniffer and watch the traffic.  Wireshark is very common, but cisco also offers the EPC.

You can read more about the EPC here:

http://www.cisco.com/en/US/products/ps9913/products_ios_protocol_group_home.html

[Giuseppe Larosa]

Hello Ciprian,

a single diagram covering all the features you have mentioned does not exist probably.

you should look at different documents like

C6500 architecture

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/prod_white_paper0900aecd80673385.html

C6500 QoS

be aware that QoS implementation in multilayer switches is different from that of routers and also there are big changes among different switch platform.

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/configuration/guide/qos.html

SW based router platforms implement the different stages in software.

Hope to help

Giuseppe

[Ganesh Hariharan]

Hello,
I'm tring to find a diagram of the succesion of functional blocks that a packet passes in his travel throw the switch/router.
input queue, the input acl, then input checks... monitor span, nat, filters, routing,cef.....
Thank you,
Ciprian

Hi Ciprian,

Check out the below link on architucture of routers and switches for packet processing

http://www-europe.cisco.com/application/pdf/paws/5406/arch_1600_5406.pdf

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/prod_white_paper0900aecd80673385.html

Hope to Help !!

Ganesh.H