Cisco 867VAE-K9 router does not reach more than 200Mbps

[erikreig1]

Hello,

We changed the router that our ISP provide to us by a Cisco 867VAE-K9.

Our access line is a symmetric 300Mbps FTTH.

Now, using the Cisco 867VAE-K9 we can't reach more than 200Mbps.

I was reading the Data Sheet for this model but I couldn't find any limitation that could explain this.

When you do an speed test, just to test if the router can reach the 300Mbps, the router CPU remains at 100%.

I attach the router configuration if can help.

Just to clarify, the service works properly, the only problem is that router can't reach the 300Mbps.

controller VDSL 0
shutdown
!
vlan 21
name FTTH1
!

interface ATM0
no ip address
shutdown
no atm ilmi-keepalive
!
interface Ethernet0
no ip address
shutdown
!
interface FastEthernet0
no ip address
shutdown
!
interface FastEthernet1
no ip address
shutdown
!
interface FastEthernet2
no ip address
shutdown
!
interface FastEthernet3
no ip address
shutdown
!
interface GigabitEthernet0
description LAN-FTTH-01
switchport access vlan 21
no ip address
!
interface GigabitEthernet1
description FTTH
no ip address
no ip redirects
no ip proxy-arp
no ip route-cache
duplex auto
speed auto
pppoe-client dial-pool-number 6
!
interface Vlan1
no ip address
shutdown
!
interface Vlan21
description LAN_FTTH1
ip address 172.25.15.1 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat inside
ip virtual-reassembly in
ip tcp adjust-mss 1400
!
interface Dialer6
ip address negotiated
ip mtu 1492
ip nat outside
ip virtual-reassembly in
encapsulation ppp
ip tcp adjust-mss 1452
dialer pool 6
ppp authentication chap callin
ppp chap hostname adslppp@telefonicanetpa
ppp chap password 7 01120217571B161F
no cdp enable
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip nat inside source list PAT_TO_INET interface Dialer6 overload
ip route 0.0.0.0 0.0.0.0 Dialer6
ip ssh version 2

Thanks for you help!

[Reza Sharifi]

Hi,

When you do an speed test, just to test if the router can reach the 300Mbps, the router CPU remains at 100%.

There are limitations per platform.  Have a look at this link for comparison. 

https://www.cisco.com/web/partners/downloads/765/tools/quickreference/routerperformance.pdf

Also, to be sure you are getting the speed you are paying for, you can ask the provider to run a test and send you the results.  The way the test this is by connecting the hand off cable they gave you to their product and check the speed to next hop router.  If they are getting 300Mb or close to it, that is what they are responsible for.  The provider can't guarantee the speed from inside your network to say Google, Yahoo or Cisco.com as they have no control over what is behind their routers.  

HTH

[erikreig1]

Thanks for reply!

We are sure that we are getting the speed we are paying because when we connect the router provided by our ISP, it can reach 300Mbps. The problem is when we connect the Cisco router.

I'll take a look at this link to see if I find any limitation.

Thanks again,