Hi,
On 8 September 2010 08:44, Michael Sprouffske <msprouff...@yahoo.com> wrote: > So, I have this hsrp lab setup with a coulple PE routers and come CE > routers. Everything works and all is well. I wanna know how the 2 PE > routers that are playing in the hsrp role notify other PE routers upstream or > if they do. So for example, I have one CE1 router attached to PE1 and PE2 > and they are doing hsrp and it works well. I also have PE3 and PE4 attached > to CE2. How do PE1 and PE2 communicate the hsrp stuff to PE3 and PE4 or do > they need to? How does PE3 and PE4 know where to send packets? They don't notify anyone in normal circumstances. HSRP address is only used by traffic from CEs towards PEs. In the other direction normally both PEs advertise the same 'connected' network, and the rest of the network decides which PE to use for particular CE. Some further configuration might be required if you want to prevent a situation when both routers become HSRP 'masters' when for example the interface doesn't go down, but there is a break in connectivity somewhere further down the line. kind regards Pshem _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
