Netgear CSM4532 Software Administration Manual - Page 237
Enhanced Transmission Selection
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• Priority Assignment Table-The following table contains the default values advertised by DCBX to the peer DCBX device. If available, the mapping translated from the configuration source is used. This table defines the mapping between the egress Traffic Class Group and ingress 802.1p priority. Table 9-2: 802.1p-to-TCG Mapping • TC Bandwidth And TSA Assignment Table-The following table contains the default values advertised by DCBX to the peer DCBX device. If available, the assignments translated from the configuration source is used. This table defines the bandwidth allocated to each Traffic Class Group and the respective scheduling algorithm for each TCG; the scheduling algorithm is enumerated in the IEEE 802.1Q specification. Table 9-3: TCG Bandwidth and Scheduling 9.5. Enhanced Transmission Selection Enhanced Transmission Selection (ETS) enables the sharing and redistribution of network bandwidth between various protocols. To support ETS, the switch accepts the ETS traffic class group and bandwidth information Application Priority TLV from auto-upstream devices and propagates it to auto-downstream devices. The switch supports the reception and propagation of ETS information in the automatic configuration port roles. As part of hierarchical scheduling, bandwidth allocation and traffic class groups can be configured by ETS TLVs. 9.5.1. ETS Operation and Dependencies Using priority-based processing and bandwidth allocations, different Traffic Class Groups (TCGs) within different types of traffic such as LAN, SAN and Management can be configured to provide bandwidth allocation or best effort transmit characteristics. NETGEAR M4500 Series Switches Software Administration Manual 237