Dell EqualLogic PS6100 series Configuration Manual

Also see for EqualLogic PS4100E: Hardware Overview

Contents

Dell EqualLogic PS6100 series Configuration Manual Manual pdf 144 page image

March 2013 Dell EqualLogic Configuration Guide v14.1 14-135Figure 51 M1000e Blade Enclosure full DCB solutionThe components used in the solution are listed here:• M1000e chassis• M620 blade server• PS-M4110XV array• Force10 MXL (2)• Broadcom 57810 CNA14.7 VLANs for iSCSIA non-default VLAN is required for operating prioritized lossless iSCSI traffic in a DCB enabled Ethernetinfrastructure. Switch ports that are based on the IEEE 802.1Q VLAN specification forward frames inthe default or native VLAN without tags (untagged frames). Normally these ports also receive frames inthe default or native VLAN as untagged. Such a port is typically termed a “tagged port” or “trunk port”and all non-default VLAN frames are forwarded with the tags intact. Since the DCB priority information(PCP value) is encoded in the VLAN tag, this information will be lost if an end-device sends iSCSI trafficin a default or native VLAN and the switch receives it in a tagged or trunk port. As a result, DCBprioritization and traffic classification will be lost.All devices in the iSCSI data path must have the same VLAN ID configured on the respective portsparticipating in the iSCSI network to ensure proper functioning. These devices include the server iSCSINIC/CNA ports, EqualLogic arrays, and all switches on the iSCSI SAN.Note: The VLAN ID for iSCSI can be set in the EqualLogic Group Manager interface or thestorage array CLI. When DCB is enabled on the switch, it is necessary to configure a non-default VLAN on the array, switch, and all host ports that are part of the EqualLogic SAN.VLAN IDs 0 and 1 are not recommended, because these may be the default or reservedVLAN for some switches, and as such, may forward frames untagged (e.g. no VLANtagging). VLAN tagging is required to fully support DCB.