Comments on: Bridging the gap between 3550 and 3560 QoS: Part II http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/ Helping you become a Cisco Certified Internetwork Expert Sun, 14 Mar 2010 17:16:45 -0700 http://wordpress.org/?v=2.8.6 hourly 1 By: timaz http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/comment-page-1/#comment-93585 timaz Fri, 12 Feb 2010 18:32:57 +0000 http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/#comment-93585 hi. today i got my 4 catalyst 3550 with "ipservicesk9-12.2(52)SE" for my lab. because i could not afford 3560. what kind of topics will i miss using 3550 (with most recent ios image) instead of 3560? can i do the labs with 3550s or the missing parts will affect the entire lab? hi. today i got my 4 catalyst 3550 with “ipservicesk9-12.2(52)SE” for my lab. because i could not afford 3560. what kind of topics will i miss using 3550 (with most recent ios image) instead of 3560? can i do the labs with 3550s or the missing parts will affect the entire lab?

]]> By: Vineet http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/comment-page-1/#comment-50693 Vineet Thu, 04 Jun 2009 06:02:10 +0000 http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/#comment-50693 Peter, What do the 5 columns mean exactly in the output of the command: sh mls qos interface stats? Your answer only states 4 columns. Peter, What do the 5 columns mean exactly in the output of the command: sh mls qos interface stats?
Your answer only states 4 columns.

]]> By: Petr Lapukhov, CCIE #16379 http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/comment-page-1/#comment-1198 Petr Lapukhov, CCIE #16379 Fri, 25 Apr 2008 14:06:42 +0000 http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/#comment-1198 <i>to Peter</i> OK we have two directions incoming/outgoing. DSCP tables are for 64 DSCP values, and each cell is displays the number of packets bearing this particular DSCP value. As you see, for DSCP tables we have 16 rows and 4 columns, and the DSCP values are depicted on the left part of the screen. The same goes to CoS tables, just they have only 8 values (2 rows by 4 columns) Now if you mark packets on ingress, you will be able to see the new marking only on the egress port (where the packets get switched too). This is not like 3550, where you can monitor specific DSCP values ingress on each port. to Peter

OK we have two directions incoming/outgoing. DSCP tables are for 64 DSCP values, and each cell is displays the number of packets bearing this particular DSCP value. As you see, for DSCP tables we have 16 rows and 4 columns, and the DSCP values are depicted on the left part of the screen.

The same goes to CoS tables, just they have only 8 values (2 rows by
4 columns)

Now if you mark packets on ingress, you will be able to see the new
marking only on the egress port (where the packets get switched too). This is not like 3550, where you can monitor specific DSCP values ingress on each port.

]]> By: Peter http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/comment-page-1/#comment-1097 Peter Fri, 18 Apr 2008 07:12:33 +0000 http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/#comment-1097 Petr, could you explain the meaning of the columns in the "show mls qos interface fastEthernet 0/3 statistics" output? Thanks! Petr, could you explain the meaning of the columns in the “show mls qos interface fastEthernet 0/3 statistics” output?
Thanks!

]]> By: Atif http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/comment-page-1/#comment-1053 Atif Wed, 09 Apr 2008 12:35:42 +0000 http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/#comment-1053 Thanks! I have a confusion about the mapping tables. When or how a prticular mapping table is called ? If we are trusting cos value of the incoming frames on a prticular interface then what table it should use and is it necessary to use a mapping table ? Same question when we are trusting dscp or precedence value. Thanks! I have a confusion about the mapping tables. When or how a prticular mapping table is called ? If we are trusting cos value of the incoming frames on a prticular interface then what table it should use and is it necessary to use a mapping table ? Same question when we are trusting dscp or precedence value.

]]> By: Week 12 summary « Richard Bannister’s CCIE Blog http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/comment-page-1/#comment-991 Week 12 summary « Richard Bannister’s CCIE Blog Tue, 01 Apr 2008 14:33:30 +0000 http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/#comment-991 [...] Listed below are some useful URLs that I have been/will be basing my notes on: Quality of Service Networking Cisco IOS Quality of Service Cisco Modular Quality of Service Command Line Interface Class-Based Weighted Fair Queueing Deploying Quality Of Service For Converged Networks Catalyst 3560 Switch Software Configuration Guide - Configuring QoS Catalyst 3550 Switch Software Configuration Guide - Configuring QoS Distributed Traffic Shaping Differentiated Services Compliant Distributed Weighted Random Early Detection Understanding and Configuring MDRR/WRED Bridging the gap between 3550 and 3560 QoS: Part I and Part II [...] [...] Listed below are some useful URLs that I have been/will be basing my notes on: Quality of Service Networking Cisco IOS Quality of Service Cisco Modular Quality of Service Command Line Interface Class-Based Weighted Fair Queueing Deploying Quality Of Service For Converged Networks Catalyst 3560 Switch Software Configuration Guide – Configuring QoS Catalyst 3550 Switch Software Configuration Guide – Configuring QoS Distributed Traffic Shaping Differentiated Services Compliant Distributed Weighted Random Early Detection Understanding and Configuring MDRR/WRED Bridging the gap between 3550 and 3560 QoS: Part I and Part II [...]

]]> By: Ken http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/comment-page-1/#comment-913 Ken Thu, 27 Mar 2008 23:31:50 +0000 http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/#comment-913 interested post about traffic. i think is very useful interested post about traffic. i think is very useful

]]> By: Carlo http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/comment-page-1/#comment-903 Carlo Wed, 26 Mar 2008 21:36:33 +0000 http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/#comment-903 nice post. thanks for sharing your traffic tips nice post. thanks for sharing your traffic tips

]]> By: Carlo http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/comment-page-1/#comment-902 Carlo Wed, 26 Mar 2008 21:20:04 +0000 http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/#comment-902 thanks for the post. i hope to read some more. Best regards from Sebbi thanks for the post. i hope to read some more.
Best regards from Sebbi

]]> By: Lynditu http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/comment-page-1/#comment-895 Lynditu Wed, 26 Mar 2008 18:23:29 +0000 http://blog.ine.com/2008/03/26/bridging-the-gap-between-3550-and-3560-qos-part-ii/#comment-895 thank you, guy thank you, guy

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