Technical data

IronWare Software Release 07.2.02j for Brocade FastIron switches
Release Notes v 1.0 Page 29 of 79
Supported Layer 2 features
Layer 2 software images include all of the management, security, and system-level features listed in the
previous tables, plus the features listed in Table 11.
Table 11 Supported Layer 2 features
Category and description FESX
SuperX
FSX 800
FSX 1600
FGS
FLS
FGS-STK
FLS-STK
FWS FCX
802.1D Spanning Tree Support:
• Enhanced IronSpan support includes
Fast Port Span, Fast Uplink Span, and
Single-instance Span
• Up to 254 spanning tree instances for
VLANs
Yes Yes Yes Yes Yes
802.1p Quality of Service (QoS):
• Strict Priority (SP)
• Weighted Round Robin (WRR)
• Combined SP and WRR
• 8 priority queues
Yes Yes Yes Yes Yes
802.1s Multiple Spanning Tree Yes Yes Yes Yes Yes
802.1W Rapid Spanning Tree (RSTP) Yes Yes Yes Yes Yes
802.3ad link aggregation (dynamic trunk
groups)
Yes Yes Yes Yes Yes
ACL-based rate limiting QoS Yes Yes Yes Yes Yes
BPDU Guard Yes Yes Yes Yes Yes
Dynamic Host Configuration Protocol
(DHCP) Assist
Yes Yes Yes Yes Yes
IGMP v1/v2 Snooping Global Yes Yes Yes Yes Yes
IGMP v3 Snooping Global Yes
(*,G)
Yes
(S,G)
Yes
(S,G)
Yes
(S,G)
Yes
(S,G)
IGMP v1/v2/v3 Snooping per VLAN Yes Yes Yes Yes Yes
IGMP v2/v3 Fast Leave (membership
tracking)
Yes Yes Yes Yes Yes
Interpacket Gap (IPG) adjustment Yes Yes Yes Yes Yes
IP MTU (individual port setting) Yes No No No Yes