08-18-2021 01:39 AM
SW1#sh ip cef 2.2.2.2 de
2.2.2.2/32, epoch 0, flags [attached]
Adj source: IP adj out of Vlan2, addr 2.2.2.2 12F2FA40
Dependent covered prefix type adjfib, cover 0.0.0.0/0
attached to Vlan2
what does "12F2FA40" mean?
thanks.
Solved! Go to Solution.
08-18-2021 02:23 AM
As per i know and i learned from docment, here is my notes :
The Cisco Express Forwarding table points to 16 hash buckets (load share table), which point to the adjacency table for parallel paths.
Each packet to be switched is broken up into the source and destination address pair and checked against the loadshare table".
as per the output load share table that identifies 1 path(s) or more and hash buckets are distributed equally among the 1 path(s).
The hex numbers(12F2FA40) simply identifies the path and these simple indicate which hash bucket belong to which path.
Some information for reference :
https://blog.ipspace.net/2014/02/this-is-not-host-route-youre-looking-for.html
08-18-2021 02:23 AM
As per i know and i learned from docment, here is my notes :
The Cisco Express Forwarding table points to 16 hash buckets (load share table), which point to the adjacency table for parallel paths.
Each packet to be switched is broken up into the source and destination address pair and checked against the loadshare table".
as per the output load share table that identifies 1 path(s) or more and hash buckets are distributed equally among the 1 path(s).
The hex numbers(12F2FA40) simply identifies the path and these simple indicate which hash bucket belong to which path.
Some information for reference :
https://blog.ipspace.net/2014/02/this-is-not-host-route-youre-looking-for.html
08-18-2021 02:40 AM
Hi,
I found someone who asked a similar question and got a great answer to it, attaching a link on the subject:
https://community.cisco.com/t5/routing/cef-load-sharing/td-p/2464585
08-18-2021 07:13 PM
thanks.
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