Going by what you have posted (unless there is something you ommitted that changes the functioning - and I note that you do give the prefix-list from site 1 but not the access list 1 from site 2) it looks like both sites are advertising both network xxx.xxx.xxx.0 and zzz.zzz.zzz.0 with equal metrics from that site. So the difference in what is sent to site 1 and what is sent to site 2 is determined by how the ISP is configured, and that is not under your control.
In fact it is generally true of running BGP that you have control of how you sent traffic to your providers and to the Internet. But you have no real control over how the Internet and your provider send traffic to you (they control that).
This document gives several answers on frequently asked questions for PFRv3 channel state behavior.
Q1: What are all the channel operational states from a BR (border role) perspective and what are the rules/conditions to be in each st...
The need was to reach an host inside a LAN through a VPN connection managed by the LAN gateway (Cisco 1921).
The LAN gateway performs NAT and there was a dedicate nat rule for the host i wanted to reach through VPN.
I couldn't connect to the hos...
We have 3 identical switches configured by someone else and would like to claim some of the Gigabit ports(G1/G2/G3/G4) for use on servers. When we try to change the wiring and configuration, we run in to connectivity issues. Attached is a des...