Pbb Qos - Alcatel-Lucent 7210 SAS M Service Manual

Hide thumbs Also See for 7210 SAS M:

Table of Contents

PBB Features

PBB QoS

The following QoS processing rules apply for PBB B-VPLS SAPs:

B-VPLS SAP ingress

B-VPLS SAP egress

I-SAP Ingress

I-SAP Egress (for 7210 SAS-M)

If dot1p classification is enabled, the BTAG fields will be used by default to evaluate the

internal forwarding class (fc) and discard profile if there is a BTAG field.

If dot1p classification is not explicitly enabled or the packets are untagged then the default

fc and profile is assigned.

If the access port based policy contains FC and profile to dot1p mapping, this entry is used

to mark the dot1p bits in the B-TAG of the frame going out of the SAP. The I-Tag of the

frame is not modified in any case.

If no explicit mapping exists, the related dot1p DE bits are set to zero on both ITAG and

BTAG if the frame is originated locally from an I-VPLS. If the frame is transiting the B-

VPLS the ITAG stays unchanged, the BTAG is set according to the type of ingress SAP.

→ If the ingress SAP is tagged, the values of the dot1p, DE bits are preserved in the

BTAG going out on the egress SAP.

→ If the ingress SAP is untagged, the dot1p, DE bits are set to zero in the BTAG going

out on the egress SAP.

SAP ingress classification using mac-criteria or IP DSCP is supported.

Access port based marking is supported for I-SAPs (dot1q and QinQ SAPs).

7210 SAS M Services Guide

Show Quick Links

Table of Contents