write memory or wr shortly is one of most used commands on IOS devices. It’s short, simple and quick to execute. Who would like to write copy running-config startup-config every time?
Unfortunately on NX-OS wr is no more. I don’t really understand why developers decided to remove that command. Thankfully it can be restored using aliases
N7K(config)# cli alias name wr copy running-config startup-config
In some situations you can see following error message while trying to establish BGP neighborship
%BGP_SESSION-5-ADJCHANGE: neighbor 192.168.0.2 IPv4 Unicast topology base removed from session Unknown path error
This can be misconfiguration or internal bug described (or rather just mentioned because I’d say bug description is almost empty) in CSCsy10339 bug ticket if you are using release prior to 12.2(33)XNE. If this is misconfiguration you’d rather expect error message like
%BGP_SESSION-5-ADJCHANGE: neighbor 192.168.0.2 IPv4 Unicast topology base removed from session Peer closed the session
. This can be quite confusing and leads to looking for problem elsewhere than it exists.
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