IBM REDBOOKS B24X - Manual (Page 7)

IBM Ethernet Switch B24X 7
Link aggregation z
Up to eight links per group, 28 link groups per switch z
Static trunks compatible with Cisco EtherChannel
z
802.3ad Link Aggregation Control Protocol (LACP) for dynamic trunk groups z
Quality of service (QoS) and rate shaping z
Eight queues per port with strict priority (SP), weighted round robin (WRR), and combined z
SP/WRR schedulers
802.1p Class of Service (CoS)
z
IP DSCP/DiffServ (Type of Service) to priority mapping z
ACL, port, and static MAC address to priority mapping z
Layer 2 CoS and Layer 3 DSCP re-marking
z
Outbound rate shaping z
Layer 2 z
Up to 32,000 MAC addresses. z
Per-VLAN Rapid Spanning Tree Protocol Plus (PVST/PVST+/PVRST+) compatibility in
z
default configuration supports smooth implementation into Cisco Layer 2 environments.
802.1d Spanning tree Protocol (STP). z
802.1w Rapid Spanning Tree Protocol (RSTP). z
802.1s Multiple Spanning Tree Protocol (MSTP) enables multiple STP instances and z
forwarding paths for more efficient traffic distribution.
Virtual Switch Redundancy Protocol (VSRP) alternative to STP and includes sub-second z
convergence and Layer 2 redundancy based on the VRRPE protocol.
Metro Ring Protocol (MRP) v1/v2 enables fast, sub-second convergence in ring topologies. z
IGMPv1/v2/v3 Snooping and PIM-SM Snooping reduce multicast flooding in a Layer 2
network.
Root Guard prevents rogue devices from hijacking STP root. z
BPDU Guard prevents rogue devices from participating in STP. z
DHCP Assist helps DHCP servers respond correctly to devices in a different subnet than the z
DHCP server.
Layer 3 z
Up to 12,000 IPv4 routes z
Routing Information Protocol (RIP) v1/v2 z
Open Shortest Path First (OSPF) v2 z
Internet Group Management Protocol (IGMP) v1/v2/v3 z
Protocol Independent Multicast Dense Mode (PIM-DM) v1/v2 and Sparse Mode (PIM-SM) v2 z
Equal Cost Multi Path (ECMP) for load balancing across up to eight paths z
Virtual Router Redundancy Protocol (VRRP) and VRRP-E (Enhanced) z