On Thu, Nov 14, 2013 at 6:03 AM, Gert Doering <[email protected]> wrote:
> > "forwarding to the active HSRP device" and "only the active HSRP interface > answers ARP request" doesn't particularily sound "active-active" to me :-) > > *This* is what happens on any 6500 that does HSRP on a SVI... > > GLBP is active-active in that both L3 routers will accept packets to the > world, instead of L2-forwarding them to the other one inside the SVI. > > > Maybe I am missing something, but I understand the below text to indicate that both the primary and secondary HSRP peers will accept the packet to their "local" svi - rather than pushing it across the link... (Continued on page 25) <quote> The most significant difference between the HSRP implementation of a non-vPC configuration compared with a vPC configuration is that the HSRP MAC addresses of a vPC configuration are programmed with the G (gateway) flag on both systems, compared with a non-vPC configuration where only the active HSRP interface can program the MAC address with the G flag. Given this fact, routable traffic can be forwarded by both the vPC primary device (where HSRP is primary) and the vPC secondary device (where HSRP is secondary), with no need to send this traffic to the HSRP primary device. Without this flag, traffic sent to the MAC address would not be routed. </quote> _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
