QoS Shaping on Catalyst 6506 IOS15, Supv 2T, PFC4

[dmethodmn]

We have a requirement to shape down to 10 Mbps from our service provider.

I am trying to apply shaping within a QoS policy on Cat 6506 (our edge device).  I already created the class-map, policy-map and applied the service-policy to the interfaces.  When I try to add shaping at the policy-map I get the following error:

(config-pmap-c)#shape ave 10000000

shape average command is not supported for this interface

Configuration failed!

I have the following HW/SW

• IOS version 15 (Version 15.0(1)SY3)
• Supervisor 2T (VS-SUP2T-10G)
• PFC4 (VS-F6K-PFC4 Policy Feature Card 4 Rev. 2.0)
• WS-X6848-GE-TX (CEF720 48 port 1000mb SFP Rev. 3.0)

Research i've already come across, that has not helped and the reason it did not help

• It calls out 6816 and 6904 saying that they DO or DO NOT support shaping but does not callout my 6848 line card
  • Supv 2T - PFC 4 QoS Whitepaper

• only goes up to PFC 3 -
  • PFC QoS - Catalyst 6500 Release 12.2SX Software Configuration Guide
  • Quality of Service on Cisco Catalyst 6500

• from 2010, my HW/SW is Supv 2T, PFC4  https://supportforums.cisco.com/thread/2058557

• from: Catalyst 6500 Qos FAQ  -- last updated 2006

Q. Is traffic shaping supported on the Catalyst 6500 (Cat6K) Switch?

A. Traffic shaping is only supported on certain WAN modules for the Catalyst 6500/7600 Series, such as the Optical Services Modules (OSMs) and FlexWAN modules.

[Lei Tian]

Hi,

As the Q&A mentioned, I don't think class based shaping is ever supported on LAN modules of 6500 platform. Some LAN module support SRR, so you can shape the interface down to certain level, but it is interface level not policy based.

HTH,
Lei Tian

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[dmethodmn]

I understand what the Q+A is saying, but it was last updated in 7 years ago.  I'm sure PFC4 was not released 7 years ago and my understanding of the Supv 2T/PFC4 whitepaper is that it was possible with the new hardware.

You mentioned "shape at the interface level", how do I do that?  I do not see any commands for that.  I see bandwidth, flow-contol, throttle, and load-balance.  I do not see shape.

[Lei Tian]

Hi,

SRR is not supported on 6848.

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/15.0SY/configuration/guide/qos_policy_based_queueing.html#wp1005997

HTH,
Lei Tian
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