Flow control handling modification, Cli commands, Global command – Brocade MLX Series and NetIron Family (Supporting Multi-Service IronWare R05.6.xx) User Manual

Page 42: Interface command, Policy-based routing support for preserve vlan

Brocade MLX Series and NetIron Family Documentation Updates

53-1003301-07

Flow control handling modification

A CLI command has been added to configure the flow control to default settings.

CRC errors were seen on ports connected to 8x10G modules, due modifications to the flow control
settings. To avoid these errors, it is recommended to configure the flow control to default settings.

CLI commands

The tx-drain-disable command disables the Tx drain on MAC. The no tx-drain-disable
command enables the Tx drain on MAC. This command can be used on either the global level or
interface level.

Global command

Brocade(config)#flow-control tx-drain-disable

Syntax: [no] flow-control tx-drain-disable

Interface command

Brocade(config-if-e10000-16/7)#flow-control tx-drain-disable

Syntax: [no] flow-control tx-drain-disable

The tx-drain-disable command disables the Tx drain on MAC. The no tx-drain-disable
command enables the Tx drain on MAC.

Policy-based routing support for preserve VLAN

NOTE

The description in the section “Policy-based routing support for preserve VLAN” has been updated
to include the following text.

When the PBR TVF VLAN egress ports are in dual VLAN mode, the ingress tagged packets flood as
“tagged” with the original VLAN ID and priority preserved. The ingress untagged packets flood as
“untagged” if the egress port is the untagged member of the ingress port's default VLAN;
otherwise, the ingress untagged packets flood as “tagged” with the original VLAN ID and priority
preserved.