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Hardware: c9500-40Software: 17.15.04Our network consists of an EVPN fabric, all our distribution routers are acting as VTEP's for several networks, some of which are IRB networks using distributed anycast gateway with central DHCP services. One parti...
I have a Layer 2 BGP EVPN VXLAN setup on some catalyst 9500 series switches, I have a problem with a specific VNI peering only showing as up on one of two peers which both have local clients for the VLAN. I can force peerings up if I configure an SVI...
What is the correct way to onboard a pair of Cisco 9500's intended to become a stackwise virtual pair?I have been able to onboard them individually with a template that contains the configuraiton for creating the stackwise domain and neighbor peering...
I have just upgraded a single production switch from IOS 12.2(50)SE1 to 15.0(2)SE5 to test out new ipv6 security features that we will soon require for our deployment. upon booting into the newer IOS the DHCP snooping feature stopped working, this ca...
UpdateThe problem was being caused by VTP pruning.Leaf B was sending VTP prune messages to the layer 2 access switch where the host was attached. The switch (9500) does not seem recognise an upstream EVPN connection as being relevant for the purposes...
Upon further investigation I can confirm the problem (loss of connection) never happens when I have the following config on Node B:interface Vlan501no ip addressendas soon as I delete this interface, before the MAC has even timed out, I lose connecti...
Very good point. I don't have a great deal of expertise in SDA as we aren't currently deploying it. But from what I understand it operates like a layer 2 overlay on top of a layer 3 access model, so SVL isn't stricly needed as the access layer switch...
