HP 6120XG HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 205
Interior Switch B Honors the Policy Established in Edge Switch
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Quality of Service (QoS): Managing Bandwidth More Effectively Using QoS Classifiers To Configure Quality of Service for Outbound Traffic Interior LAN Edge Switch WorkGroup Switch "B" "A" LAN A5 WorkGroup Marked Traffic from port A5 on Edge Switch "A" Other Traffic Figure 5-10. Interior Switch "B" Honors the Policy Established in Edge Switch "A" To do so, assign the desired 802.1p priority to the same codepoint that the upstream or edge switch assigns to the selected packets. When the downstream switch receives an IPv4 packet carrying one of these codepoints, it assigns the configured priority to the packet and sends it out the appropriate priority queue. (The packet retains the codepoint it received from the upstream or edge switch). You can use this option concurrently with the diffserv DSCP Policy option (described later in this section), as long as the DSCPs specified in the two options do not match. 5-29