About PyotrKhaimov

PyotrKhaimov · 10-28-2014

Hi. When switch does switching, it operates only mac addresses, or it also checks vlan number? For example: Switch receive packet from one vlan and this packet somehow has destination mac belonging to host in another vlan, will switch forward this pa...

PyotrKhaimov · 02-15-2014

Hi. I have question about CEF. I don't understand concept of buckets (CEF per-destination load sharing scenario). For example, packet arrives to the router/switch, and router/switch hashes packet's source/destination ip, what's next? Cisco says: "The...

PyotrKhaimov · 10-28-2014

Thank you. I think so, too. But vlan hopping attack explanation says that first switch send a packet sourced from one vlan to another vlan. For example, first switch receive a double tagged packet from attacker, then strip off first tag (which suppos...

PyotrKhaimov · 02-19-2014

Great as always! And the last question You wrote above: "CEF combines and hashes the source and destination addresses along with a unique ID (depending on the Cisco IOS version) to find a number between 0 and 15". If there are only two equal path...

PyotrKhaimov · 02-17-2014

Great! This is exactly what I wanted to understand! Please, clarify these things:1) "these simple indicate which hash bucket belong to which path" - this is about the hex numbers (68D03140, 6A9B1220, etc)? I think these numbers are hardware based an...

PyotrKhaimov · 02-16-2014

Dear Richard, did you mean that CEF perform some hash calculation for particular route before (some kind of hash pre-calculation) the first packet arrive to router/switch, put it into bucket and then when packet arrives to the router hashes it and c...

PyotrKhaimov · 02-16-2014

Vishesh Verma, thank you for your answer, it was aslo very useful for me. But as I wrote above my main question was about consisting of buckets (you can read my answer to Richard). And by the way, what is this numbers (6A9B1220, 68D03140 and so on) ...

Member Since	‎10-04-2013 11:29 AM
Date Last Visited	‎11-17-2021 12:48 AM
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Switching

CEF Load sharing

Thank you. I think so, too.

Re: CEF Load sharing

CEF Load sharing

Re: CEF Load sharing

CEF Load sharing