Cisco 2900 Series Router can only do 25Mbps up and down.

[ryanpst88]

The device is specifically a 2951.

The only QOS on this is set to 100Mbps

policy-map child
class network-control
bandwidth 500
set dscp cs6
queue-limit 10 packets
class expedited
police 5000000
set dscp ef
class class-default
random-detect dscp-based
queue-limit 2170 packets
set dscp default
policy-map parent
class class-default
shape average 100000000
service-policy child

Upstream I have no QOS.

LAN port is up at Full Duplex/Speed 1000, WAN port is up at Full Duplex/Speed 100.

No errors on the LAN or WAN.

The provider says this is set to the 100Mbps we pay for. They've double checked it.

Is there anything else that could be capping me? Could there be a license that is causing this issue? I think you can get 25Mbps licenses for the ISR4K family but can't see the same for the 2900 line.

[Richard Burts]

Is it possible that there is a duplex mismatch. The output of show interface might be helpful.

[ryanpst88]

It looks fine there, full duplex / speed 100 for the WAN and full duplex / speed 1000 for the LAN. No errors on either port.

[Joseph W. Doherty]

You say you're paying for 100 Mbps.  Perhaps that's only for link's physical bandwidth.  If the WAN hand-off is FE, are you sure you're also "allowed" to use all 100 Mbps, both up and down?  Often vendors, on Ethernet hand-offs, police for lessor bandwidth then the physical link provides, especially from you to them (which often also is less allowed bandwidth from them to you too).

Where exactly do you have your policy-map applied, as you note "Upstream I have no QOS."?

If you do have full physical bandwidth, why are you shaping at interface rate?

What do your policy-map stats look like?  (NB: it's very easy to burn yourself with some of the QoS features you are using, especially the way you're using them.)

Also, BTW, Cisco recommends the 2951 for WAN connections only up to 75 Mbps.  What's your CPU usage stats look like?