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Hello,I was looking through a part of my company's network that I have not previously seen and noted an odd port-channel configuration. The configuration involves a pair of 8k routers (IOS-XE) connected to a pair of 9k switches (NX-OS). These devic...
Hello,Can anyone explain the value of using a static null0 route with an administrative distance? We use these to seed the BGP table for /16 networks at various locations and I have noticed that some of them are configured with an administrative dis...
Hello,Quick question regarding BGP route advertisement behavior. This should be a simple question but my brain is not cooperating with me today. As shown in the diagram, R1 and R2 have eBGP peerings with the service provider and iBGP peerings with ...
So, I have two routers at the edge of a Data Center, both with eBGP peerings to the same MPLS service provider. Both routers are configured to advertise the networks contained in the Data Center. Due to the configurations on the routers and the fac...
Hello,Is it possible to delay an eBGP peering? I have several sites with redundant ASR-1006 routers that seem to take up 30 seconds to complete their GetVPN registration after a reload. Since BGP becomes active (placing the router in the forwarding...
Ooops...please disregard my last comment - the switch side is configured as access ports. All good now, I will go away and re-educate myself on port-channels.Thanks again for the feedback!
Thank you for the detailed feedback - very helpful! A little more info on this. The router is not using sub-interfaces (as you did address) and the switch side of the port-channel is configured as a trunk. But based upon the feedback here, sounds l...
Sorry for clarity, the router interfaces are fortygig interfaces with no configuration on them (other than the channel-group command) and the ip address is assigned to the port-channel interface. So no sub-interfaces in this case.
Thanks Jon but I am trying to understand what is preventing the routers from re-advertising the routes they learn via iBGP, to their eBGP peers. I agree that outbound filtering is a good idea but that is not configured in this example. This behavio...
Thanks Jon but I am trying to understand what is preventing the routers from re-advertising the routes they learn via iBGP, to their eBGP peers. I agree that outbound filtering is a good idea but that is not configured in this example. This behavio...
