01-17-2013 02:11 AM - edited 03-04-2019 06:44 PM
Hi All,
Not sure if anyone also experienced the similar issue as i did. I'm having Cisco Catalyst with GE module (WS-X6748-GE-TX). I'm trying to limit bandwidth for a customer to 4Mbps but the bandwidth always exceed to 5Mbps or more than this. I've verified the QoS configuration, it seems to be correct. Any idea what is the possible issue? Any bug or any IOS/Module of the switch problem? Below are device spec. and configuration.
Appreciate any response.
**************************
#show module 1
Mod Ports Card Type Model Serial No.
--- ----- -------------------------------------- ------------------ -----------
1 48 CEF720 48 port 10/100/1000mb Ethernet WS-X6748-GE-TX SAL13442T95
**************************
#show version
Cisco IOS Software, s72033_rp Software (s72033_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(33)SXI3, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Tue 27-Oct-09 11:12 by prod_rel_team
*******************************
#show mls qos
QoS is enabled globally
Policy marking depends on port_trust
QoS ip packet dscp rewrite enabled globally
QoS serial policing mode disabled globally
Input mode for GRE Tunnel is Pipe mode
Input mode for MPLS is Pipe mode
Vlan or Portchannel(Multi-Earl) policies supported: Yes
Egress policies supported: Yes
QoS 10g-only mode supported: Yes [Current mode: Off]
************************************
#show policy-map 4Mbps
Policy Map 4Mbps
Class class-default
police cir 4000000 bc 128000 be 128000
conform-action transmit
exceed-action drop
violate-action drop
#show run int gi1/5
Building configuration...
Current configuration : 188 bytes
!
interface GigabitEthernet1/5
ip address X.X.X.X mask X.X.X.X
service-policy input 4Mbps
service-policy output 4Mbps
!
01-17-2013 04:18 AM
Hello Vannara
Please have a look at this
http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a00801c8c4b.shtml#calcul
res
Paul
01-17-2013 06:48 PM
Hi Paul, Thanks for your reply. I've red the above link and a few others related topics, however i'm yet still not able to pinpoint the cause of this issue. I've also red below link and not sure if it is really the cause. I checked the switch interface and found the port was set to "untrusted". If you found out something wrong, kindly share with me.
#show queueing interface gigabitEthernet 1/5
Interface GigabitEthernet1/5 queueing strategy: Weighted Round-Robin
Port QoS is enabled
Trust boundary disabled
Port is untrusted
Extend trust state: not trusted [COS = 0]
Default COS is 0
Queueing Mode In Tx direction: mode-cos
Transmit queues [type = 1p3q8t]:
01-23-2013 04:04 AM
Hi All,
Any idea on above matter? Hope for any reply from you guys.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide