Configuration Guide User guide
liv FastIron Configuration Guide
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Maximum Trunk support
and Maximum trunk port
member support on FastIron
SX interface modules
The following Interface modules support up to 12
ports per trunk group on the FastIron SX chassis for
both static and LACP trunks. A maximum of 256
trunks are supported when the following modules
are installed on the chassis:
• SX-FI48GPP—48-port 10/100/1000 Mbps
Ethernet PoE interface module
• SX-FI24GPP—24-port Gigabit Ethernet copper
interface module
• SX-FI24HF—24-port Gigabit Ethernet fiber
interface module
• SX-FI2XG—2-port 10 Gigabit Ethernet interface
module
• SX-FI8XG—8-port 10 Gigabit Ethernet interface
module
“Trunk Groups and Dynamic Link Aggregation” on
page 697
VRRP-E short-path
forwarding and revertible
option
Also known as ‘VRRP-E Extension for Server
Virtualization,’ enables the Brocade device to bypass
the master router and directly forward packets to
their destination through interfaces on the backup
router. If enabled, the traffic travels through the
short-path forwarding (SPF) path to reach the client.
“VRRP and VRRP-E” on page 1649
CPU rate-limiting Increases CPU efficiency by preventing unnecessary
traffic from being sent to the CPU and by limiting the
rate at which some packet types are delivered to the
CPU.
“CPU rate-limiting” on page 1787.
Support for 16K Nexthops 16,000 nexthops are supported on the following
modules:
• SX-FI-24GPP
• SX-FI-24HF
• SX-FI-2XG
• SX-FI-8XG
• SX-FI48GPP
Chapter 28, “Base Layer 3 and Routing Protocols”
Quality of Service (QoS)
support for ICX 6430 and
6450 devices
Differences are detailed for ICX 6430 devices in the
following areas:
• Priority to hardware forwarding queue mapping
• Default QoS mappings
• Default values for scheduling type
• Default scheduling configuration
Chapter 51, “Quality of Service”
Dynamic buffer support for
6430 and 6450 devices
Specific information is provided for the ICX 6430 and
6450 devices in the following areas:
• Port and buffer descriptor values
• Buffer sharing levels
• Configuring values for ICX devices
Chapter 16, “Basic Layer 2 Features”
TABLE 3 Summary of Enhancements in FastIron release 07.4.00 (Continued)
Feature Description Described in










