From: ccie2be (ccie2be@nyc.rr.com)
Date: Sat Dec 18 2004 - 11:45:12 GMT-3
Hi guys,
I came across an option for the above command that I can't figure out.
See this link:
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225se/3550cr/cli1.htm#wp1862902
This option allows you to map dscp values to switch priority.
mls qos map dscp-switch-priority dscp-list to switch-priority
The CR says for this option the following:
Define the DSCP-to-switch-priority map. This map generates the priority of a
request to the switch fabric when using a priority-aware switch fabric.
For dscp-list, enter up to eight DSCP values, with each value separated by a
space. The range is 0 to 63. Then enter the to keyword.
For switch-priority, the range is 0 to 3.
I've got some questions about this.
1) Is this actually something that can be done on 3550?
2) What does "switch-priority" mean in this context? (Notice that the range
of values for switch priority is only 0 to 3 which doesn't sound like this
switch priority has anything to do with the Spanning Tree Protocol.)
3) What do they mean by "priority-aware switch fabric" and does the 3550
have this?
4) If the 3550 has this what's the default dscp to switch-priority mapping?
I spent a couple hours already trying to find out the answers to these
questions but the only references I've found were related to the 6500 switch
fabric.
Any help would be appreciated.
TIA, Tim
This archive was generated by hypermail 2.1.4 : Mon Jan 03 2005 - 10:31:28 GMT-3