Bandwidth command in ME 6524

Unanswered Question
Aug 25th, 2009

I wonder why I can not use "bandwidth" command for configuring CBWFQ in ME 6524. The command is available to use, but when I apply the service policy to the interface, input and output, 6524 gave the following error message:

PE1(config-if)#service-policy input PE-INGRESS-FROM-CE

QoS-ERROR: Addition/Modification made to policymap PE-INGRESS-FROM-CE and class Control-From-Customer is not valid, command is rejected

The software version is as follows:

----------------------

CG-PE-02#sh version

Cisco IOS Software, s6523_rp Software (s6523_rp-ADVIPSERVICESK9-M), Version 12.2(33)SXH2a, RELEASE SOFTWARE (fc2)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2008 by Cisco Systems, Inc.

Compiled Fri 25-Apr-08 05:44 by prod_rel_team

ROM: System Bootstrap, Version 12.2(17r)SX3, RELEASE SOFTWARE (fc1)

CG-PE-02 uptime is 6 minutes

Uptime for this control processor is 7 minutes

Time since CG-PE-02 switched to active is 5 minutes

System returned to ROM by s/w reset at 06:30:51 UTC Tue Aug 25 2009 (SP by power-on)

System image file is "disk0:s6523-advipservicesk9-mz.122-33.SXH2a.bin"

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

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If you require further assistance please contact us by sending email to

[email protected].

cisco ME-C6524GT-8S (R7000) processor (revision 1.3) with 983040K/65536K bytes of memory.

Processor board ID CAT1210C0KM

R7000 CPU at 300Mhz, Implementation 0x27, Rev 3.3, 256KB L2, 1024KB L3 Cache

Last reset from power-on

2 Virtual Ethernet interfaces

32 Gigabit Ethernet interfaces

1915K bytes of non-volatile configuration memory.

65536K bytes of Flash internal SIMM (Sector size 256K).

Configuration register is 0x2102

-----------------

Anybody has a clue?

Thanks,

Even

I have this problem too.
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Giuseppe Larosa Tue, 08/25/2009 - 12:51

Hello Even,

CBWFQ applied inbound is something I never used.

However, there can be some specific requirements of this platform.

Unfortunately, looking for ME 6500 configuration guide points to the configuration guide for 12.2SX for normal C6500 devices.

Looking at the datasheet it lists other queueing mechanisms different for uplink and downlink ports

see

http://www.cisco.com/en/US/prod/collateral/switches/ps6568/ps6845/ps6846/product_data_sheet0900aecd8040657e.html

Priority Queue

Shaped Round Robin (SRR)

Deficit Weighted Round Robin (DWRR)

Weighted Random Early Detection (WRED)

these are switch oriented queueing

Hope to help

Giuseppe

prima.ramadhan Tue, 08/25/2009 - 17:40

Hi Giuseppe,

Thanks for your response.

I actually posted the wrong log. The output when using bandwidth command is as follows:

PE1(config-if)#service-policy output PE-EGRESS-TO-CE

bandwidth command is not supported for this interface

PE1(config-pmap)#do sh policy-map PE-EGRESS-TO-CE

Policy Map PE-EGRESS-TO-CE

Class Control-To-Customer

bandwidth 64 (kbps)

----------------------

The previous error message is for configuring traffic policing inbound on ME6524, which couldn't be done also.

Anyway, I think what you sad is right. Most QoS toolsets in ME6524 are switch oriented. But it makes me wonder on something else. If I provide MPLS service using this ME6524, how can I limit rate to my customer? I mean if the customer only need 2Mbps, then how do I limit the rate based on their requirement? Because as I said earlier, ME6524 also can not use traffic policing inbound, it can only police outbound. Can you enlighten me?

Edison Ortiz Wed, 08/26/2009 - 09:13

The message posted above is not a policing error but a bandwidth guaranteed configuration error. This is not supported by the regular line cards in the 6500 switch due to the PFC QoS limitation.

You can however police inbound and outbound.

Edison Ortiz Tue, 08/25/2009 - 12:59

ME 6500 relies on the PFC QoS which does not support bandwidth reservation nor shaping.

The command is there as the code is shared by the regular 6500 which supports both features mentioned while using the SIP/SPA combination or FlexWAN.

HTH,

__

Edison.

Giuseppe Larosa Tue, 08/25/2009 - 23:54

Hello Edison,

thanks for your added info

p.s.: compliments for your 10,000 points in Netpro

Best Regards

Giuseppe

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