ACL matched packets and NAT matched packets are switched by CEF ?
I have the question about how the packets that match the access-list and match NAT statement are switched on CEF enabled IOS router. Router is Cisco 7301, Cisco 3825 and Cisco 2811 and all of interfaces are CEF enabled.
The access-list does not use"log" keyword, so I personally think packets that match the access-list are always CEF switched that means all packets that match the access-list never punt to CPU (process switching).
I also think the packets that match the NAT statement also always CEF switched and not punt to CPU (process switching) as long as existing entries of those packets in CEF table which means if there are no entry for the packets that match NAT statement in CEF table, such as first incoming/outgoing packet, those packets punt to CPU (process switching) to resolve adjacency.
My understanding correct ?
Or first incoming/outgoing packet that match the access-list and NAT statement always punts to CPU (process switching) ?
Or all packets that match the access-list and NAT statement always punts to CPU (process switching) ?
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...