lii BigIron RX Series Configuration Guide
53-1002253-01
Digital Optical Monitoring Beginning with release 0 2.6.00, Digital Optical 
Monitoring will only support newly qualified 
1Gigabit optics. Digital Optical Monitoring for 
previous 1Gigabit optics that do not include "OM" 
after the model numbers will not be able to use this 
feature.
Book: Brocade BigIron RX 
Series Installation Guide
Chapter: Connecting a 
BigIron RX Series Switch 
to a Network Device
Section:Digital Optical 
Monitoring
BFD for IS-IS, OSPFv2 and 
OSPF v3
BigIron RX provides support for Bidirectional 
Forwarding Detection (BFD) in Version 02.6.00 of 
the Multi-Service IronWare software. 
Book: BigIron RX Series 
Configuration Guide
Chapter: “BiDirectional 
Forwarding Detection 
(BFD)”
LACP Continous Fast Timer In a dynamic or keep-alive LAG, a port's timeout can 
be configured as short or long
Book: BigIron RX Series 
Configuration Guide
Chapter: “Link 
Aggregation”
Section: “Configuring an 
LACP timeout”
Rate Limiting ARP Packets This new feature allows you to rate-limit ARP traffic 
that is destined for CPU of the BigIron RX router. 
Book: BigIron RX Series 
Configuration Guide
Chapter: “Configuring IP”
Section:“Applying a rate 
limit to ARP packets on an 
interface”
Layer 2 features
VSRP Fast Start Non-Brocade or non-VSRP aware devices connected 
to a VSRP master can now quickly switch over to the 
new master when a VSRP failover occurs.
Book: BigIron RX Series 
Configuration Guide
Chapter: “Virtual Switch 
Redundancy Protocol 
(VSRP)”
Section: “VSRP fast start”
LACP Enhancements Beginning with release 02.6.00 of the Multi-Service 
IronWare software, all trunking and link aggegation 
configuration has been revamped and placed under 
a  single interface. This new interface allows you to 
configure either of the previously supported LAG 
types: Static LAGs and Dynamic LAGs as well as the 
new “Keep Alive” LAGs. 
The new LAG configuration procedures supersede 
the previous configurations procedures for Trunks 
and Dynamic Link Aggregation. 
Book: BigIron RX Series 
Configuration Guide
Chapter: “Link 
Aggregation”
Multicast Layer 2 Filter Beginning with release 02.6.00, you can define 
multicast boundaries on a per VLAN basis. 
Book: BigIron RX Series 
Configuration Guide
Chapter: “Configuring IP 
Multicast Protocols” 
Section: “Layer 2 multicast 
filters”
Layer 3 features
TABLE 7 Summary of enhancements in release 02.6.00 (Continued)
Enhancement Description See page