A lot of sources say configuring MPLS BGP peering using /32 loopbacks is recommended, or even required. So what, if anything, happens when we set up MP-BGP peering using loopbacks with /24 addresses? We will test this on a simple topology with 2 PEs, 2 CEs and 1 P routers. PE1 and PE2 have BGP peering configured using their loopbacks, and . Client sites, placed in vrf RED, are running BGP AS65015 with PEs and have the following networks configured: CE1

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