Does the internal WAN connection bandwidth interface settings have to match the service provider's bandwidth?

[jorge75medina]

Quick question, we just upgraded our circuit from 50M to a 600M circuit and I just noticed that the bandwidth settings on my WAN interface are still at 45000. Does my internal WAN interface have to match the service providers and must I change it to 60000M? Please help.

[paul driver]

Hello

In short that command is mostly used for route metric calculations regards your routing protocols it has no bearing on the actual bw allowed on the link.

[jorge75medina]

Thanks for the info. I changed it yesterday to 60000 and users started seeing latency and slowness. Once I changed it back to 45000 they reported better speeds. Not certain if its related, but maybe?

[Georg Pauwen]

Hello,

certain QoS (Quality of Service) settings use the 'bandwidth' interface command to calculate parameters, so that could be related. Can you post the configuration of the router ?

[paul driver]

Hello

@Georg Pauwen  makes a very good point if you have implemented any quality of service and that's set to utilize a percentage of the specified interface bandwidth then by changing this could have an adverse affect on your qos classifications and the traffic that's related to them.