Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 219)

‐ You can configure the maximum number of FCoE devices that can be logged into
a switch by using the fcoe_enodes command.
‐ Newly allocated VF_Ports are mapped to existing N_Ports sequentially in a round-
robin fashion, which assigns all VF_Ports sequentially and evenly to the N_Ports.
‐ Newly deallocated VF_Ports are removed from existing VF_Port to N_Port
mappings.
Following are support limitations:
• If an interface is only handling L2 traffic, the corresponding VF_Port appears as disabled to AG.
• For vLAGs:
‐ As in native VCS mode, a vLAG with FSB cannot support FCoE traffic. It can support L2
traffic only.
‐ A vLAG from a host Converged Network Adapter (CNA) supports L2 and FCoE traffic.
• A single LAG/link is supported between one FSB and one AG switch. Subsequent LAG/links will be
treated as a TRILL loop and disabled.
• LAG member VF_Ports cannot be mapped to individual N_Ports or N_Port groups.
Enabling Access Gateway mode
Enabling Access Gateway (AG) mode on a VDX switch allows FCoE hosts and devices behind LAG-
supported FSBs connected to VF_Ports to connect to a FC fabric.
The FCoE license must be installed to enable AG mode. Refer to the Network OS Software Licensing
Guide for more information.
Enabling AG mode enables VDX 6730 switch FC ports, configuring them as N_Ports. The N_Ports can
connect directly to F_Ports on an edge FC switch. VF_Ports are mapped to N_Ports in a sequential,
round-robin fashion as Enodes log in. You can change this default mapping using Network OS
commands.
NOTE
Enabling AG mode is disruptive since the switch disables and reboots. If the switch is in standalone
mode, you can enable VCS and AG mode simultaneously with a single reboot. If the switch is part of a
logical cluster, you should back up the configurations before enabling AG mode.
Use the following procedure to enable Access Gateway mode.
1. Determine if the switch is in standalone or VCS mode by entering the show vcs command in
privileged EXEC mode.
If the state displays as disabled, the switch is in standalone mode. If the state displays VCS
configuration data, the switch is in VCS mode.
2. Enable AG mode using one of the following steps:
• If VCS is enabled, enable Access Gateway using the ag enable command as in the following
example.
switch# ag enable
• If the switch is in standalone mode (VCS not enabled), enable VCS and AG mode using the ag
rbridge-id rbridge-id vcs-id vcs-id enable command as in the following example.
switch# ag rbridge-id 1 vcs-id 2000 enable
Enabling Access Gateway mode
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