Network OS Administration Guide

Supporting Network OS 6.0.1a

Part Number: 53-1003768-04

Guidelines and restrictions for standard-distance Metro VCS

Consider the following guidelines and restrictions when configuring Metro VCS with standard-distance ISLs:

  • Only two data-center and three data-center topologies are supported.
  • A maximum of two nodes are supported for each site, which provides node redundancy. If more-complex local designs are required, a local VCS sub-fabric design must be used.
  • Only standard Ethernet services are supported, lossless Ethernet capabilities, such as no FCoE or lossless iSCSI, cannot be used in this case.
  • Brocade trunking up to 80G (8x10G or 2x40G) or 120G (3x40G or 12x10G):
    • VDX 8770: 8x10G
    • VDX 6740: 8x10G and 2x40G
    • VDX 6740T: 2x40G
    • VDX 6740T-1G: 2x40G
    • VDX 6940-36Q: 3x40G or 12x10G
    • VDX 6940-144S: 3x40G and 12x10G