Chapter 117 Troubleshooting Cos Configuration; Switch - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

CHAPTER 117
Troubleshooting CoS Configuration
Troubleshooting CoS Schedulers on a 40-port SFP+ Line Card in an EX8200 Switch
Problem
Cause
Solution
Copyright © 2010, Juniper Networks, Inc.
Troubleshooting CoS Schedulers on a 40-port SFP+ Line Card in an EX8200
Switch on page 3463
After you configure a scheduler map on an interface on the 40-port SFP+ line card, you
notice one or both of the following:
All packets are being dropped on a class-of-service queue configured on the interface.
A message in the system log states that the interface is using the default scheduler
map, not the scheduler map you configured. For example:
Sep 19 21:26:50
Interface xe-5/0/15 cannot be bound to scheduler-map m1. It will be bound
to
default scheduler-map
The ports in a 40-port SFP+ line card are divided into eight groups, each group comprising
five ports. The ports in a port group share 10 gigabits of bandwidth. Because the port
groups share bandwidth, only one scheduler map can be active at a time in a port group.
If you configure different scheduler maps for different interfaces in a port group, you do
not receive an error when you commit the configuration. Instead, default scheduler map
becomes the active scheduler map for all interfaces in the port group, and messages in
the system log report that the default scheduler map is in use for the affected interfaces.
If the default scheduler map does not define a queue, all traffic is dropped on that queue.
Check your CoS configuration for the interfaces in the port group. If you have different
scheduler maps assigned to different interfaces in the port group:
Delete the scheduler map configuration for all interfaces in the port group.
1.
Determine the scheduler map that you want all interfaces in the port group to use.
2.
Assign that scheduler map to at least one interface in the port group. The remaining
3.
interfaces in the port group will adopt this scheduler map.
hostname cosd[907]: COSD_SCHED_MAP_GROUP_CONFLICT:
3463