Brocade OS Command Reference Manual Supporting Fabric OS v6.0.0 (53-1000599-01, October 2007)

428 Fabric OS Command Reference
53-1000599-01
portCfg
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Valid modes for rscnsupr are:
--disable Disables the configuration. When disabled, device changes on the port
generate RSCN to another end device that is zoned with this one. By default,
RSCN suppression is disabled on all ports.
--enable Enables the configuration. When enabled, any device changes on the port will
not generate RSCN to any other end device.
mirrorport Configure mirror port on the local port.The port mirroring feature reroutes
data frames between two devices to the mirror port. Port mirroring can aid in
troubleshooting common FC end-to-end communication problems. the
command prompts for confirmation that the specified port will be enabled
as a mirror port. Once a port is configured as a mirror port, the port can only
be used as part of a mirror connection. The syntax for portcfg mirrorport is as
follows:
portcfg mirrorport [slot/][ge]port mode
Valid modes for mirrorport are:
--disable Disables the configuration. When disabled, a port can not be a mirror port.
--enable Enables the configuration. When mirrorport is enabled to a port, a mirror
connection can use this port to mirror traffic.
fastwrite Configures the FC port for FC Fastwrite. Enables ordisables FC Fastwrite
between two Brocade 7500 routersor two Brocade 48000 directors with
FR4-18i bladesconnected by Fibre Channel ISLs. FastrWrite mitigateslatency
effects on SCSI writes, and improve throughputover a high-latency link. The
blade first should be enabled for FC fastwrite using fastWriteCfg. This
command can also be used to list all ports configured for FC fastwrite. This
feature requires a Brocade license. The syntax for portcfg fastwrite is as
follows:
portcfg fastwrite [slot/]port mode
Valid modes for fastwrite are:
--enable Enables FC fastwrite on the specified port.
--disable Disables FC fastwrite on the specified port.
vlantag Use this command to maintain the VLAN tag table associated with a
particular network interface. This table is mainly used by ingress processing
to filter VLAN tagged frames. If a VLAN tagged frame is received from the
network and there is no entry for the VLAN ID, the frame will be discarded.
There is no ingress filtering on the destination IP address. There can be
multiple VLAN IDs per IP interface; however, there cannot be two entries to
the same destination, including 0.0.0.0. On egress, this table is used to
determine whether to tag a frame that is not already marked as tagged.
Egress frames already marked as VLAN tagged (i.e. FCIP) will take
precedence over entries in this table.