Cisco 892 Shape

[Jewgeni Uschegow]

Hello everybody,

I have Cisco 892FSP with Gi 8 Uplink and 2 inside interfaces Gi0-1:

interface GigabitEthernet8
description UPLINK
ip address 192.168.0.1 255.255.255.254

!

interface GigabitEthernet0
switchport access vlan 238
no ip address
no lldp transmit
no lldp receive
no cdp enable
spanning-tree portfast

!

interface GigabitEthernet1
switchport access vlan 238
no ip address
no lldp transmit
no lldp receive
no cdp enable
spanning-tree portfast

!

interface Vlan238
ip address 10.0.0.1 255.255.255.224

I need to shape the download and upload as 200Mbitps. Can somebody me help how I can do it with vlan?

Best Regards,

[Georg Pauwen]

Hello,

the 892 does not even come close to up and download speeds of 200MB. Either way, a simple traffic shaping policy would look like below:

policy-map SHAPE_200MB
class class-default
shape average 200000000
fair-queue
!
interface GigabitEthernet8
description UPLINK
ip address 192.168.0.1 255.255.255.254
service-policy output SHAPE_200MB

[Joseph W. Doherty]

Shaping egress is generally used so you can manage less bandwidth then the port supports.  (How it might be done is shown in Georg's posting.)  BTW: Do note, I believe some shapers do not account for L2 overhead, and if you need to shape for that overhead too, on such shapers you can shape about 15% "slower" to allow for that overhead.

You cannot shape ingress (except perhaps on another port's egress).  You can police ingress.  However, for what purpose do you wish to limit ingress?  (The reason I ask, a policer [or shaper] will control bandwidth behind it, but their affect upon upstream bandwidth usage, varies.)

[Jewgeni Uschegow]

Hallo Joseph,

thanks for your reply. I tred to do the shape. It looks like

!
class-map match-any from-inside
match input-interface Vlan238
match input-interface GigabitEthernet0
match input-interface GigabitEthernet1
!
policy-map shape-to-inside
class class-default
shape average 200000000
fair-queue 256
policy-map shape-from-inside
class from-inside
shape average 200000000
fair-queue 256

But It works only for download.
I feel like it's not working right with L2 or I'm doing something wrong

[Joseph W. Doherty]

How do you have the policies applied?

[Jewgeni Uschegow]

interface GigabitEthernet8

service-policy output shape-from-inside

!

interface GigabitEthernet0

service-policy output shape-to-inside

!

interface GigabitEthernet1

service-policy output shape-to-inside

[Joseph W. Doherty]

So you're problem is with g8?  Further, it's not shaping, you believe?  Any possible traffic not from the three interfaces listed in the class-map?  If you wish to shape all g8 egress traffic, why not use class-default?