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FAQ-Why MA5600T cannot manage Upstream QoS

Publication Date:  2012-07-25 Views:  49 Downloads:  0
Issue Description

Q:
Why MA5600T cannot manage Upstream QoS ?

OLT version: V800R007C00SPC304+ HP0009
The traffic discarded for Upstream overload doesn't follow configured QoS rules.
We set 11 different upstream traffic streams.
2x Priority 5
2x Priority 4
2x Priority 2
5x Priority 0
Each traffic is 96Mbps full duplex
Each stream is configured on a different OPFA port.
The traffic analysis shows a 10% of loss on all streams.
The expected results is to have packet loss only on Streams marked with priority 0

Alarm Information

Null

Handling Process

A:
The system is not able to mark priority correctly on Stacking VLAN architectures that adopt outer ethertype forced to 88a8
Traffic Tables:
traffic table ip index 1010 name "Cos_to_Tos" cir off  priority user-cos  0 priority-policy tag-in-package
 traffic table ip index 1011 name "Tos_to_Cos" cir off  priority user-tos 0 inner-priority user-tos 0 priority-policy tag-in-package
Service port example:
service-port 0 vlan 1002 eth 0/1/0 multi-service user-vlan 1035 tag-transform translate-and-add inner-vlan 100 inbound traffic-table index 1011 outbound traffic-table index 1010
Qos Configuration:
1:1 Cos Queue Mapping. 1 different queue for each priority
Queue uses Strict Priority
Solution:
MA5600T(diagnose)%%debugging lswdrv bcm-cli BCM.0>
 
mod port 1 28 OUTER_TPID_VERIFY=0
mod port 1 28 OUTER_TPID_ENABLE=5
mod egr_vlan VLAN_ID 1 OUTER_TPID_INDEX=2

Root Cause

Null

Suggestions
The solution will be lost after sstem reboot.

END