The DFC3A only supports a total of 224K FIB entries, by default there are 192K IPv4/MPLS and 32K Multicast/IPv6. If you have in your custody a linecard with a DFC3BXL, that will move your routes up to 1024K IPv4. You can achieve this also by using a card that does not have a DFC.
Without a DFC, each linecard must put all input packet headers on a central bus so that the PFC on the supervisor can make a forwarding decision. The speed of this central bus limits the total PPS numbers you can achieve in a chassis. If you have all fabric-enabled cards in a chassis with no DFC's, you can get 30M PPS through the chassis. If you have a classic linecard (non-fabric), your performance is lowered to 15M PPS.
If you put a DFC on a linecard, the central bus is no longer needed for forwarding decisions, so it can process up to 48M PPS on packets coming in to it.
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 ...