I have an mppp line with 3 t-1's in the bundle. When I "show int mu1", it says "Available Bandwidth 1 kilobits/sec". how can that be? I do have some qos configured on this inteface too.
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Here's the mu1, with a few things x'd out:
ip address xxx.xxx.xxx.xxx 255.255.255.252
no ip route-cache cef
ip route-cache flow
no ip mroute-cache
no peer neighbor-route
ppp multilink group 1
service-policy output xxxxxx
Thank you. Try setting the combined bandwidth using the command bandwidth on the interface. You are using three T1 then configure it as:
Please let us know if this worked. Note that the interface reserves 25% for framing overhead and control traffic, therefore, only 75% of the configured bandwidth is available.
here is the policy map, I think its fairly simple:
set ip precedence 5
priority percent 35
bandwidth percent 25
bandwidth percent 15
The total available bandwidth is 100% without configuring any policy-map on the interface.
In your configuration, you allocated 75% of the available bandwidth to several traffic types. Remains 25%.
Although in your configuration it is not apparent, there is a class-default queue within your policy-map. By default it is allocated 25% of the available bandwidth.
You can check it using the "show policy-map interface multilink1" command.
Altogether, if you add up all the bandwidths you configured + this 25% bandwidth, all the 100% bandwidth is used up: 35%+25%+15%+25% = 100%.
This is why you get the "Available bandwidth 1kbps" message, which is I think may be just a rounding calculation error in the software.
The Available bandwidth message simply indicates how much of the interface bandwidth is still available for allocation to additional traffic types within your policy-map.
It does NOT mean you don't have the bandwidth of the 3 T1 lines.
Use the show interface multilink1 command to look at the bandwidth of the interface (and it will also display the available bandwidth for allocation to additional traffic types).
You should use the "bandwidth" command under the multilink interface to set the real bandwidth (if it isn't already set automatically to the right number) so QoS functions correctly.