Crossbar fabric is a marketing term Cisco uses to describe one of the backplanes on a 6500/7600.
It basically means that each linecard is connected through to eachother via the crossbar. On a Sup720 the crossbar is integrated into the Supervisor. On older Sup2 it's a dedicated card that is placed into the middle slot(s) of the chassis. There are actually two channels per slot which go to the crossbar, with speeds up to 720Gbps per slot.
The main architectural differences between the card is that the X6748 has dual fabric channels to the crossbar and the 6516 has only one. This obviously results in less throughput to other linecards.
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 ...