2012/3/2 Łukasz Bromirski <[email protected]> > On 2012-03-02 09:13, Artyom Viklenko wrote: > > I'm tring to clarify my understanding of switching paths on these >> line cards. From one point of view, Cisco docs says that if the >> traffic should ingress via one port on the line card and then >> should egress through another port on the same line card it will >> never leave this line card. So it will be switched via internal >> bus. Right? >> > > No, and if it says so somewhere, please point it to the doc team > to fix it. > > Both 6704 and 6708 have two complex of Fabric ASICs. > The 6708 you can see on figure 21 here: > http://www.cisco.com/en/US/**prod/collateral/switches/** > ps5718/ps708/prod_white_**paper0900aecd80673385.html<http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/prod_white_paper0900aecd80673385.html> > > suppose there are port A and port B belong to fabric channel 1 and port C belongs to fabric channel 2.
how does traffic pass from port A to port B with/without DFC ? and any difference for traffic passing from port A to port C ? I am wondering whether the traffic pass through switch fabric ? Is switch fabric a passive component? thanks. The port mappings for Fabric ASICs should be found in the hardware > installation notes under the 'Switch fabric connections' in the > tables for specific LC: > http://www.cisco.com/en/US/**docs/switches/lan/** > catalyst6500/hardware/Module_**Installation/Mod_Install_** > Guide/02ethern.html#wp1048010<http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/hardware/Module_Installation/Mod_Install_Guide/02ethern.html#wp1048010> > > Essentially, traffic from one Fabric ASIC to the ports on the > other Fabric ASIC will go over the fabric itself. Only traffic > belonging the the same Fabric ASIC will be switched locally if of > course there's a DFC installed. > > -- > "There's no sense in being precise when | Łukasz Bromirski > you don't know what you're talking | jid:[email protected] > about." John von Neumann | http://lukasz.bromirski.net > > ______________________________**_________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/**mailman/listinfo/cisco-nsp<https://puck.nether.net/mailman/listinfo/cisco-nsp> > archive at > http://puck.nether.net/**pipermail/cisco-nsp/<http://puck.nether.net/pipermail/cisco-nsp/> > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
