no neighbor X:X:X::X activate <---appeared by itself
address-family ipv6 neighbor X:X:X::X activate
Maybe it is OK, just haven't ran across this before.
(Sorry, this is a duplicate post. The first one I opened in the wrong place)
**Edit: Just tested this in a simulation and as soon as I activate the neighbor under 'address-family ipv6 unicast', the router creates an ipv4 no activate entry under 'address-family ipv4'. This makes the configuration ridiculously long. Same goes for a 'show ip bgp summary' command. Tons of idle ipv6 neighbors. Is there a way to avoid this?
Seems the command "no bgp default ipv4-unicast" fixes the whole thing. Hope this helps someone.
Yes, this is normal behavior. The previous behavior in IOS was to activate address-family ipv4 for all neighbors, including the ipv6 neighbor. This behavior was changed a couple of years back to configure an explicit "no neighbor activate" for ipv6 neighbor", therefore if you ever need to activate address-family ipv4 on an ipv6 neighbor (not recommended), you should explicitly configure it.
Harold Ritter Sr Technical Leader CCIE 4168 (R&S, SP) email@example.com México móvil: +52 1 55 8312 4915 Cisco México Paseo de la Reforma 222 Piso 19 Cuauhtémoc, Juárez Ciudad de México, 06600 México
In EVPN A/A + IRB both PE in same EVI have BVI playing a default GW role. Its not supported to have BVI to be shutdown on one of PEs, In this case if if traffic hit this PE with DMAc equal to BVI Custom MAC, then it will drop this traffic du...
Crosswork Cloud - Crosswork Traffic Analysis - FAQ
Crosswork Cloud - Crosswork Traffic Analysis is a Cloud-hosted Software as a Service platform that provides Netflow based Traffic Analytics. The Crosswork Traffic Analysis platform Traffic Analysis, Peeri...
Cisco Champion Radio · S8|E9 Innovations to Achieve a Trustworthy Infrastructure
How do you know for certain that a router in your network has not been altered with since you deployed it? Wouldn’t it be great if you can cryptographically challenge your r...
IOS upgrade on asr9xx mandates rommon upgrades sometimes while they can be optional at other times. You may land up in unwanted situation if proper procedure is not followed during upgrades.
This article will include complete details about rommon ...
In some situation NCS560 RP become unresponsive after reload or powercycle.
In many NCS560 deployments are in remote location, deployment might be large and human intervention should be kept at minimum
Engineering team have been working on a str...