Qos Troubleshooting - Edge-Core ES4626 User Manual

Switch(Config-PolicyMap)#class c1
Switch(Config--Policy-Class)#set ip precedence 5
Switch(Config--Policy-Class)#exit
Switch(Config-PolicyMap)#exit
Switch(Config)#interface ethernet 1/1
Switch(Config-Ethernet1/1)#service-policy input p1
QoS configuration in SwitchB:
SWITCH#CONFIG
Switch(Config)#mls qos
Switch(Config)#interface ethernet 1/1
Switch(Config-Ethernet1/1)#mls qos trust ip-precedence pass-through-cos

8.1.5 QoS Troubleshooting

QoS is disabled on switch ports by default, 8 sending queues are set by default,
queue1 forwards normal packets, other queues are used for some important control
packets (such as BPDU).
When QoS is enabled in Global Mode,. QoS is enabled on all ports with 8 traffic
queues. The default CoS value of the port is 0; the port is in not Trusted state by
default; the default queue weight values are 1, 2, 3, 4, 5, 6, 7, 8 in order, all QoS
Map is using the default value.
CoS value 7 maps to queue 8 that has the highest priority and usually reserved for
certain protocol packets. It is not recommended for the user to change the mapping
between CoS 7 to Queue 8, or set the default port CoS value to 7.
Policy map can only be bound to ingress direction, egress is not supported yet.
If the policy is too complex to be configured due to hardware resource limit, error
massages will be provided.
8.1.5.1 Commands for Monitor And Debug
8.1.5.1.1 show class-map
Command: show class-map [<class-map-name>]
Function: Displays class map of QoS.
Parameters: < class-map-name> is the class map name.
Default: N/A.
Command mode: Admin Mode
Usage Guide: Displays all configured class-map or specified class-map information.
Example:
275